Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the family or subfamily Mormyridae: [ 334 ] records

abadii, Gnathonemus Boulenger [G. A.] 1901:80 [Annals and Magazine of Natural History (Series 7) v. 7 (no. 37) (art. 12); ref. 14747] Djebba, Upper Niger. Holotype (unique): BMNH 1900.3.26.4. •Valid as Marcusenius abadii (Boulenger 1901) -- (Gosse 1984:80 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Bigorne & Paugy 1990:38 [ref. 13599], Bigorne in Lévêque et al. 1990:142 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:15 [ref. 28023], Kramer & Wink 2013:8 [2333] [ref. 32824]). Current status: Valid as Marcusenius abadii (Boulenger 1901). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

abbreviatus, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:270 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River, Egypt. Holotype: MNHN A-9392. Type catalog: Bertin 1940:265 [ref. 293]. •Synonym of Marcusenius cyprinoides (Linnaeus 1758) -- (Gosse 1984:82 [ref. 6169]). Current status: Synonym of Marcusenius cyprinoides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

adspersus, Mormyrus Günther [A.] 1866:221 [Catalogue of the fishes in the British Museum v. 6; ref. 1983] West Africa. Syntypes: BMNH 1865.5.3.41 (2). •Valid as Pollimyrus adspersus (Günther 1866) -- (Gosse 1984:115 [ref. 6169], Bigorne in Lévêque et al. 1990:182 [ref. 21589], Bigorne 1991:316 [ref. 20236], Hopkins et al. 2007:327 [ref. 30019], Kramer et al. 2013:16 [ref. 33002], Levin & Golubtsov 2018:72 [ref. 35732]). Current status: Valid as Pollimyrus adspersus (Günther 1866). Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

adustus, Marcusenius Fowler [H. W.] 1936:247, Fig. 4 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 88; ref. 1424] 30 kilometers east of Kribi, Cameroon. Holotype: ANSP 65512. Paratypes: ANSP 65513-22 (10). Type catalog: Böhlke 1984:128 [ref. 13621]. •Valid as Brienomyrus adustus (Fowler 1936) -- (Gosse 1984:63 [ref. 6169]). •Synonym of Brienomyrus brachyistius (Gill 1862) -- (Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Brienomyrus brachyistius (Gill 1862). Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

aelsbroecki, Gnathonemus Poll [M.] 1945:46, Fig. 4 [Revue de Zoologie et de Botanique Africaines v. 39 (no. 1); ref. 13133] Elisabethville [Lubumbashi], Democratic Republic of Congo. Holotype (unique): MRAC 54990. Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Hippopotamyrus aelsbroecki (Poll 1945) -- (Gosse 1984:73 [ref. 6169], Kramer & Swartz 2010:2229 [ref. 30915]). •Valid as Cyphomyrus aelsbroecki (Poll 1945) -- (Mulelenu et al. 2020:4 [ref. 37340]). Current status: Valid as Cyphomyrus aelsbroecki (Poll 1945). Mormyridae. Distribution: Luapula River basin, Central Africa. Habitat: freshwater.

aequipinnis, Marcusenius Pellegrin [J.] 1924:3 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Kasaï River at N'gombe, Democratic Republic of Congo. Holotype (unique): MRAC 15188. •Synonym of Pollimyrus tumifrons (Boulenger 1902) -- (Gosse 1984:120 [ref. 6169]). Current status: Synonym of Pollimyrus tumifrons (Boulenger 1902). Mormyridae. Habitat: freshwater.

aequipinnis, Paramyomyrus Pellegrin [J.] 1927:297 [Bulletin de la Société Zoologique de France v. 52 (no. 4); ref. 3407] Sanaga River at Nanga Eboko, Cameroon. Syntypes: MNHN 1927-0159 to 0161 (1, 1, 1). Type catalog: Bertin 1940:267 [ref. 293]. •Synonym of Hippopotamyrus castor Pappenheim 1906 -- (Myers 1960:124 [ref. 3128], Gosse 1984:74 [ref. 6169], Kramer & Swartz 2010:2229 [ref. 30915]). Current status: Synonym of Hippopotamyrus castor Pappenheim 1906. Mormyridae. Habitat: freshwater.

affinis, Petrocephalus Sauvage [H.-E.] 1879:101 [12] [Bulletin de la Société philomathique de Paris (7th Série) v. 3; ref. 3881] Ogooué River at Doumé, Gabon. Holotype (unique): MNHN A-0894. Type catalog: Bertin 1940:267 [ref. 293]. On p. 12 of separate. •Synonym of Stomatorhinus walkeri (Günther 1867) -- (Gosse 1984:122 [ref. 6169], Lavoué et al. 2010:43 [ref. 30944], Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Stomatorhinus walkeri (Günther 1867). Mormyridae. Habitat: freshwater.

affinis, Petrocephalus Steindachner [F.] 1914:536 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 51 (no. 25); ref. 18910] Msola Brook, near Kiperege, Ulanga River system, Rufiji basin, Tanzania. Syntypes: (6) NMW 55117-18 (1, 3). Species illustrated and described in more detail in Steindachner 1915:62 [p. 4 of separate] Pl. 3 (fig. 3) [ref. 15072]. Objectively invalid; preoccupied by Petrocephalus affinis Sauvage 1879, replaced by Petrocephalus steindachneri Fowler 1958. •Synonym of Petrocephalus catostoma (Günther 1866). 1°Homonym. Current status: Synonym of Petrocephalus catostoma (Günther 1866). Mormyridae. Habitat: freshwater.

agnus, Mormyrus Pappenheim [P.] 1907:361, Pl. 13 (figs. 1-2) [Mitteilungen aus dem Zoologischen Museum in Berlin v. 3 (no. 3); ref. 15162] Niger River, Togo. Holotype (unique): ZMB 16440. •Synonym of Mormyrus hasselquistii Valenciennes 1847 -- (Gosse 1984:101 [ref. 6169]). Current status: Synonym of Mormyrus hasselquistii Valenciennes 1847. Mormyridae. Habitat: freshwater.

alces, Gnathonemus Boulenger [G. A.] 1920:14, Fig. 5 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 4); ref. 587] Stanley [Boyoma] Falls, Democratic Republic of Congo. Syntypes: BMNH 1919.9.10.64-65 (2); MRAC 7105 (1), 7381 (1), 7382 (1). •Valid as Campylomormyrus alces (Boulenger 1920) -- (Gosse 1984:66 [ref. 6169], Skelton 2019:231 [ref. 36564], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus alces (Boulenger 1920). Mormyridae. Distribution: Western-central Africa: Congo River basin. Habitat: freshwater.

altisambesi, Marcusenius Kramer [L. B.], Skelton [P. H.], van der Bank [F. H.] & Wink [M.] 2007:681, Fig. 1K [Journal of Natural History v. 41 (9-12); ref. 29168] Caprivi Strip, Upper Zambezi River at Lisikili, Namibia. Holotype: SAIAB 79135. Paratypes: SAIAB 79136 (6), 79137 (3); ZSM 35082 (2), 35085 (2), 35086 (5), 35097 (1). Type catalog: Neumann 2011:270 [ref. 31652]. •Valid as Marcusenius altisambesi Kramer, Skelton, van der Bank & Wink 2007 -- (Kramer & van der Bank 2011:2670 [ref. 31546], Marshall 2011:52 [ref. 31755], Kramer & Wink 2013:9 [2335] [ref. 32824], Maake et al. 2014:466 [ref. 33223], Kramer et al. 2016:6 [ref. 34331], Bruton et al. 2018:34 [ref. 36373], Skelton 2019:231 [ref. 36564]). Current status: Valid as Marcusenius altisambesi Kramer, Skelton, van der Bank & Wink 2007. Mormyridae. Distribution: Upper Zambezi and Okavango River systems, Africa. Habitat: freshwater.

amblystoma, Mormyrus Günther [A.] 1896:281, Pl. 14 (fig. A) [Annals and Magazine of Natural History (Series 6) v. 17 (no. 100) (art. 37); ref. 14607] Talagouga, Gabon. Holotype (unique): BMNH 1896.5.5.101. •Synonym of Petrocephalus balayi Sauvage 1883 -- (Gosse 1984:108 [ref. 6169] as ballayi, Lavoué et al. 2004:519 [ref. 27871], Lavoué et al. 2010:16 [ref. 30944], Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus balayi Sauvage 1883. Mormyridae. Habitat: freshwater.

anchietae, Mormyrus Guimarães [A. R. P.] 1884:4, Pl. 1 (fig. 3) [Jornal do Sciências Mathemáticas, Physicas e Naturaes, Lisboa v. 10 (no. 37); ref. 18171] Cunene River and Caconda River, Angola. Syntypes: apparently lost. •Synonym of Mormyrus lacerda Castelnau 1861 -- (Gosse 1984:102 [ref. 6169]). Current status: Synonym of Mormyrus lacerda Castelnau 1861. Mormyridae. Habitat: freshwater.

angolensis, Gnathonemus Boulenger [G. A.] 1905:458 [Annals and Magazine of Natural History (Series 7) v. 15 (no. 89) (art. 59); ref. 15344] Quanza River, Angola. Holotype (unique): BMNH 1905.5.29.64. •Synonym of Marcusenius macrolepidotus (Peters 1852), but a valid subspecies -- (Gosse 1984:86 [ref. 6169]). •Valid as Marcusensius angolensis (Boulenger 1905) -- (Kramer et al. 2007:680 [ref. 29168], Kramer & Wink 2013:12 [ref. 32824], Kramer & Wink 2013:8 [2338] [ref. 32824], Maake et al. 2014:465 [ref. 33223], Skelton 2019:231 [ref. 36564], Stiassny et al. 2021:1686 [ref. 39000] as cf. angolensis). Current status: Valid as Marcusenius angolensis (Boulenger 1905). Mormyridae. Distribution: Southwestern Africa: Cuanza River (Angola). Habitat: freshwater.

anguilloides, Mormyrus Linnaeus [C.] 1758:327 [Systema Naturae, Ed. X v. 1; ref. 2787] Nile River. Holotype (unique): NRM 63. Type catalog: Fernholm & Wheeler 1983:209-210 [ref. 20707]. •Valid as Mormyrus anguilloides Linnaeus 1758 -- (Bigirimana et al. 2024:32 [ref. 41336]). •Valid as Mormyrops anguilloides (Linnaeus 1758) -- (Gosse 1984:91 [ref. 6169], Bigorne 1987:146 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Paugy & Bénech 1989:299 [ref. 26478], Bigorne in Lévêque et al. 1990:157 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Lévèque et al. 1991:138 [ref. 31367], Skelton 1993:94 [ref. 24071], Skelton 2001:94 [ref. 27406], De Vos et al. 2001:131 [ref. 26059], Seegers et al. 2003:29 [ref. 28087], Dankwa et al. 1999:16 [ref. 28023], Snoeks 2004:20 [ref. 28111], Hopkins et al. 2007:257 [ref. 30019], Kramer & van der Bank 2011:2670 [ref. 31546], Marshall 2011:40 [ref. 31755], Kramer 2013:5 [ref. 32882], Neumann et al. 2016:303 [ref. 35036], Skelton 2019:230 [ref. 36564], Munene et al. 2021:20 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000], Akoth et al. 2023:7 [ref. 40069]). Current status: Valid as Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Distribution: Africa: widespread. Habitat: freshwater.

annamariae, Gnathonemus Parenzan [P.] 1939:160, Figs. 7-8 [Bollettino di Pesca, Piscicoltura e Idrobiologia v. 15 (no. 2); ref. 13590] Lake Regina Margherita, southern Ethiopia. •Valid as Marcusenius annamariae (Parenzan 1939) -- (Gosse 1984:80 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius annamariae (Parenzan 1939). Mormyridae. Distribution: Ethiopia. Habitat: freshwater.

ansorgii, Marcusenius Boulenger [G. A.] 1905:457 [Annals and Magazine of Natural History (Series 7) v. 15 (no. 89) (art. 59); ref. 15344] Between Benguella and Bihé, Angola [probably Kwanza River system]. Syntypes: BMNH 1905.5.29.62-63 (2). •Valid as Hippopotamyrus ansorgii (Boulenger 1905) -- (Gosse 1984:73 [ref. 6169], Skelton 2001:96 [ref. 27406], van der Bank & Kramer 1996:285 [ref. 29516], Kramer et al. 2004:1 [ref. 27728], Kramer & Swartz 2010:2213, 2222, 2230 [ref. 30915], Marshall 2011:47 [ref. 31755], Bruton et al. 2018:33 [ref. 36373], Skelton 2019:230 [ref. 36564], Mutizwa et al. 2021:[7] [ref. 38598]). •Valid as Heteromormyrus ansorgii (Boulenger 1905) -- (Sullivan et al. 2022:177 [ref. 39811]). Current status: Valid as Heteromormyrus ansorgii (Boulenger 1905). Mormyridae. Distribution: Southern Africa: Kwanza River basin (Angola). Habitat: freshwater.

ansorgii, Petrocephalus Boulenger [G. A.] 1903:325, Pl. 28 (fig. 2) [Proceedings of the Zoological Society of London 1902, v. 2 (pt 2); ref. 15009] Agberi, Lower Niger River Delta, southern Nigeria. Holotype (unique): BMNH 1902.10.25.1. •Synonym of Petrocephalus bane (Lacepède 1803), but a valid subspecies -- (Gosse 1984:109 [ref. 6169]). •Valid as Petrocephalus ansorgii Boulenger 1903 -- (Bigorne in Lévêque et al. 1990:173 [ref. 21589], Bigorne & Paugy 1991:7 [ref. 20122], Lévèque et al. 1991:139 [ref. 31367], Hopkins et al. 2007:245 [ref. 30019], Lavoué et al. 2010:51 [ref. 30944], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2232 [ref. 32160]). Current status: Valid as Petrocephalus ansorgii Boulenger 1903. Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

anterodorsalis, Petrocephalus David [L.] & Poll [M.] 1937:200, Fig. 2 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 3 (fasc. 5); ref. 1043] Panga, Democratic Republic of Congo. Holotype (unique): MRAC 22167. Type catalog: Derijst 1991:61 [ref. 21528]. •Synonym of Pollimyrus tumifrons (Boulenger 1902) -- (Gosse 1984:120 [ref. 6169], Lavoué et al. 2010:43 [ref. 30944], Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Pollimyrus tumifrons (Boulenger 1902). Mormyridae. Habitat: freshwater.

arnegardi, Petrocephalus Lavoué [S.] & Sullivan [J. P.] 2014:54, Fig. 2 [ZooKeys No. 400; ref. 33262] Republic of the Congo, Covette Ouest, Congo River Basin, Pandaka River, Odzala-Kokua National Forest, 0.62°N, 14.92°E. Holotype: CUMV 88074. Paratypes: (17) CUMV. Plus non-type specimens. •Valid as Petrocephalus arnegardi Lavoué & Sullivan 2014. •Possible synonym of Petrocephalus binotatus Pellegrin 1924 -- (Decru et al. 2017:235 [ref. 35620]). Current status: Valid as Petrocephalus arnegardi Lavoué & Sullivan 2014. Mormyridae. Distribution: Congo River basin, Republic of the Congo. Habitat: freshwater.

asinus, Mormyrus Boulenger [G. A.] 1915:163 [Revue de Zoologie Africaine v. 4 (fasc. 2); ref. 15086] Lake Moero [Lake Mweru], Democratic Republic of Congo. Holotype (unique): MRAC 14166. •Synonym of Mormyrus caballus Boulenger 1898, but a valid subspecies -- (Gosse 1984:98 [ref. 6169]). Current status: Synonym of Mormyrus caballus Boulenger 1898. Mormyridae. Habitat: freshwater.

ater, Stomatorhinus Pellegrin [J.] 1924:4 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Congo River at Kidada, Democratic Republic of Congo. Syntypes: MNHN 1923-0154 to 0156 (3); MRAC 15097-15099 (3). Type catalog: Bertin 1940:267 [ref. 293]. •Valid as Stomatorhinus ater Pellegrin 1924 -- (Gosse 1984:120 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082]). Current status: Valid as Stomatorhinus ater Pellegrin 1924. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

attenuatus, Mormyrops Boulenger [G. A.] 1898:6, Pl. 1 (fig. 4) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo River. Holotype (unique): MRAC 145. •Valid as Mormyrops attenuatus Boulenger 1898 -- (Gosse 1984:91 [ref. 6169], Skelton 2019:230 [ref. 36564], Kiselkewa et al. 2020:[7] 706 [ref. 38315]). Current status: Valid as Mormyrops attenuatus Boulenger 1898. Mormyridae. Distribution: Central Africa: Congo River (Democratic Republic of Congo). Habitat: freshwater.

bachiqua, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:248 [Histoire naturelle des poissons v. 19; ref. 4883] No locality [=Egypt]. Based on a drawing by Rifaund, 1836, Pl. 190 (fig. 52). •Synonym of Mormyrus kannume Forsskål 1775 -- (Gosse 1984:102 [ref. 6169]). Current status: Synonym of Mormyrus kannume Fabricius 1775. Mormyridae. Habitat: freshwater.

bachrachi, Mormyrops Holly [M.] 1930:197 [Sitzungsberichte, Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse v. 139 (Abt. 1) (nos. 3-4); ref. 2190] Cameroon [Sanaga River, Nachtigal Falls, 4°21'N 11°38'E, Cameroon]. Holotype (unique): NMW 7247. Type catalog: Bogutskaya et al. 2022:26 [ref. 39277]. •Valid as Mormyrops bachrachi Pellegrin 1927 -- (Gosse 1984:92 [ref. 6169]). •Synonym of Mormyrops caballus Pellegrin 1927 -- (Bigorne 1987:156 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:155 [ref. 21589]). Current status: Synonym of Mormyrops caballus Pellegrin 1927. Mormyridae. Habitat: freshwater.

balayi, Petrocephalus Sauvage [H.-E.] 1883:159 [16] [Bulletin de la Société philomathique de Paris (7th Série) v. 7; ref. 3897] Ogôoué River, Gabon. Holotype: MNHN A-6297. Type catalog: Bertin 1940:264 [ref. 293], Poll 1948:75 [ref. 31166] as ballaayi. On p. 16 of separate. Spelled Petrocephalus ballayi Boulenger 1909:295 [ref. 14744] and 1909:52 [ref. 14364] and Gosse 1984:108 [ref. 6169] and other authors; original orthography was balayi. •Valid as Petrocephalus balayi Sauvage 1883 -- (Gosse 1984:108 [ref. 6169] as ballayi, Lavoué et al. 2004:519 [ref. 27871], Hopkins et al. 2007:235 [ref. 30019], Lavoué et al. 2010:16 [ref. 30944], Lavoué 2011:26 [ref. 31401], Kramer et al. 2012:2232 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Lavoué & Sullavan 2014:49 [ref. 33262], Stiassny et al. 2021:1686 [ref. 39000], Fermon et al. 2022:126 [ref. 39448]). Current status: Valid as Petrocephalus balayi Sauvage 1883. Mormyridae. Distribution: Western-central Africa: Ogowe River basin (Gabon) and Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

ballayi, Petrocephalus Bertin [L.] 1940:264 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 12 (no. 6); ref. 293] We have no documentation on the spelling of the collector's name as Balay or Ballay. •Apparently an unjustified emendation of Petrocephalus balayi Sauvage 1883. •Synonym of Petrocephalus balayi Sauvage 1883 -- (Kramer et al. 2012:2232 [ref. 32160]). Unjustified Emend.. Current status: Synonym of Petrocephalus balayi Sauvage 1883. Mormyridae. Habitat: freshwater.

balteatus, Petrocephalus Rochebrune [A. T. de] 1885:97 [Bulletin de la Société philomathique de Paris (7th Série) v. 9; ref. 3791] "Loanda, Gabon"; Bathurst, Gambia, western Africa. Museo Bouvieri, whereaabouts unknown. •Valid as Petrocephalus balteatus Rochebrune 1885 -- (Kramer et al. 2012:2232 [ref. 32160], Fermon et al. 2022:126 [ref. 39448] with question). Current status: Valid as Petrocephalus balteatus Rochebrune 1885. Mormyridae. Distribution: West Africa: Gambia. Habitat: freshwater.

bane, Mormyrus Lacepède [B. G. E.] 1803:620, 622 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Cairo, Egypt. Holotype (unique): MNHN A-0908. •Valid as Petrocephalus bane (Lacepède 1803) -- (Gosse 1984:108 [ref. 6169], Bigorne in Lévêque et al. 1990:168 [ref. 21589], Bigorne & Paugy 1991:8 [ref. 20122], Dankwa et al. 1999:17 [ref. 28023], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2232 [ref. 32160], Neumann et al. 2016:303 [ref. 35036]). Current status: Valid as Petrocephalus bane (Lacepède 1803). Mormyridae. Distribution: Africa. Habitat: freshwater.

barbatus, Gnathonemus Poll [M.] 1967:75, Fig. 25 [Publicações Culturais, Companhia de Diamantes de Angola (DIAMANG), Lisboa No. 75; ref. 3528] Caluango, Camaloa River, tributary of Luangue River, Angola. Holotype: MD 6149. Paratypes: MD 6149 (1), MRAC 158476 [ex MD] (1). Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Gnathonemus barbatus Poll 1967 -- (Gosse 1984:71 [ref. 6169], Skelton 2019:231 [ref. 36564]). Current status: Valid as Gnathonemus barbatus Poll 1967. Mormyridae. Distribution: Southern Africa. Habitat: freshwater.

batesianus, Mormyrops Boulenger [G. A.] 1909:186 [Annals and Magazine of Natural History (Series 8) v. 4 (no. 21); ref. 576] Bumba River at Assobam, southern Cameroon. Holotype (unique): BMNH 1909.7.9.17. •Valid as Mormyrops batesianus Boulenger 1909 -- (Gosse 1984:92 [ref. 6169]). Current status: Valid as Mormyrops batesianus Boulenger 1909. Mormyridae. Distribution: Southern Cameroon. Habitat: freshwater.

batesii, Marcusenius Boulenger [G. A.] 1906:36 [Annals and Magazine of Natural History (Series 7) v. 18 (no. 103) (art. 7); ref. 15650] Kribi [now Kienké] River, Efulen [now Efoulan], [ca. 2°46'59"N, 10°31'59"E], southern Cameroon. Syntypes: BMNH 1906.5.26.159-160 (2). See Hopkins et al. 2007:299 [ref. 30019] for information on collection localities by George Latimer Bates. •Valid as Hippopotamyrus batesii (Boulenger 1906) -- (Gosse 1984:73 [ref. 6169]). •Valid as Paramormyrops batesii (Boulenger 1906) -- (Hopkins et al. 2007:297 [ref. 30019], Rich et al. 2017:[13] [ref. 35306], Fermon et al. 2022:124 [ref. 39448]). Current status: Valid as Paramormyrops batesii (Boulenger 1906). Mormyridae. Distribution: West Africa: southern Cameroon south to Gabon. Habitat: freshwater.

baudoni, Gnathonemus Pellegrin [J.] 1919:207 [Bulletin de la Société Zoologique de France v. 44 (no. 5/7); ref. 15224] Gribingui River, Congo. Holotype (unique): MNHN 1919-0102. Type catalog: Bertin 1940:266 [ref. 293]. •Synonym of Brienomyrus niger (Günther 1866) -- (Gosse 1984:65 [ref. 6169], Bigorne in Lévêque et al. 1990:157 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). •Synonym of Brevimyrus niger (Günther 1866). Current status: Synonym of Brevimyrus niger (Günther 1866). Mormyridae. Habitat: freshwater.

bebe, Mormyrus Lacepède [B. G. E.] 1803:619, 622 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Nile River, Egypt. No types known. •Valid as Hyperopisus bebe (Lacepède 1803) -- (Gosse 1984:77 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:132 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Poll & Gosse 1995:131 [ref. 24781], Seegers et al. 2003:28 [ref. 28087], Neumann et al. 2016:303 [ref. 35036], Akoth et al. 2023:7 [ref. 40069]). Current status: Valid as Hyperopisus bebe (Lacepède 1803). Mormyridae. Distribution: Africa. Habitat: freshwater.

bentleyi, Mormyrus Boulenger [G. A.] 1897:426 [Annals and Magazine of Natural History (Series 6) v. 20 (no. 119) (art. 50); ref. 14629] Stanley [Boyoma] Falls, Upper Congo River, Democratic Republic of Congo. Holotype (unique): BMNH 1897.9.30.25. •Valid as Marcusenius bentleyi (Boulenger 1897) -- (Gosse 1984:80 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius bentleyi (Boulenger 1897). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

bernhardi, Mormyrus Pellegrin [J.] 1927:384 [Bulletin de la Société Zoologique de France v. 51 (no. 5) [for 1926]; ref. 15937] Nairobi, Kenya. Holotype (unique): MNHN 1926-0278. Type catalog: Bertin 1940:270 [ref. 293]. •Valid as Mormyrus bernhardi Pellegrin 1927 -- (Gosse 1984:98 [ref. 6169], Seegers et al. 2003:29 [ref. 28087]). Current status: Valid as Mormyrus bernhardi Pellegrin 1927. Mormyridae. Distribution: Eastern Africa. Habitat: freshwater.

binotatus, Petrocephalus Pellegrin [J.] 1924:1 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Congo River at Ikengo, Democratic Republic of Congo. Holotype: MRAC 15191. •Valid as Petrocephalus binotatus Pellegrin 1924 -- (Gosse 1984:109 [ref. 6169], Lavoué et al. 2010:6 [ref. 30944], Lavoué 2011:26 [ref. 31401], Kramer et al. 2012:2232 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Lavoué & Sullavan 2014:49 [ref. 33262]). Current status: Valid as Petrocephalus binotatus Pellegrin 1924. Mormyridae. Distribution: Congo River basin, Africa. Habitat: freshwater.

boboto, Petrocephalus Lavoué [S.] & Sullivan [J. P.] 2014:47, Fig. 3 [ZooKeys No. 400; ref. 33262] Orientale Province, Democratic Republic of Congo, Congo River at Yangambi, 0.76°N, 24.24°E. Holotype (unique): CUMV 96774. •Valid as Petrocephalus boboto Lavoué & Sullivan 2014. •Possible synonym of Petrocephalus binotatus Pellegrin 1924 -- (Decru et al. 2017:235 [ref. 35620]). Current status: Valid as Petrocephalus boboto Lavoué & Sullivan 2014. Mormyridae. Distribution: Congo River basin at Yangambi, Democratic Republic of Congo. Habitat: freshwater.

bougouribaensis, Mormyrops Roman [B.] 1966:33, Pl. 1 (fig. 1) [Annales, Musée Royal de l'Afrique Centrale, Tervuren, Série in 8o, Sciences Zoologiques No. 150; ref. 9061] Bougouriba River, tributary of the Black Volta, near Daragré, West Africa. Holotype: MRAC 140929. Paratypes: MRAC 140930-33 (4). •Valid as Mormyrops bougouribaensis Roman 1966 -- (Gosse 1984:92 [ref. 6169]). •Synonym of Mormyrops breviceps Steindachner 1894 -- (Bigorne 1987:151 [ref. 20556], Bigorne in Lévêque et al. 1990:156 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Mormyrops breviceps Steindachner 1894. Mormyridae. Habitat: freshwater.

boulengeri, Mormyrops Pellegrin [J.] 1900:349 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 6 (no. 7); ref. 6253] Diélé, Alima River, Congo. Syntypes: BMNH 1907.12.3.5 [ex MNHN] (1), MNHN 1886-0325 to 0327 (1, 1, 1). Type catalog: Bertin 1940:262 [ref. 293], Poll 1948:75 [ref. 31166]. •Valid as Mormyrops boulengeri Pellegrin 1900 -- (Gosse 1984:92 [ref. 6169]). •Valid as Oxymormyrus boulengeri (Pellegrin 1900) -- (Poll & Gosse 1995:133 [ref. 24781] with genus as Oxymyrus). Current status: Valid as Oxymormyrus boulengeri (Pellegrin 1900). Mormyridae. Distribution: Middle Congo River basin, Africa. Habitat: freshwater.

bovei, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:283 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River, Egypt. Syntypes: MNHN A-0906 (2), 1967 (2), 4404 (11). Type catalog: Bertin 1940:264 [ref. 293]. •Valid as Petrocephalus bovei (Valenciennes 1847) -- (Gosse 1984:110 [ref. 6169], Paugy & Bénech 1989:299 [ref. 26478] dated 1846, Bigorne in Lévêque et al. 1990:169 [ref. 21589], Paugy et al. 1990:337 [ref. 26477] dated 1846, Bigorne & Paugy 1991:13 [ref. 20122], Dankwa et al. 1999:17 [ref. 28023], Hopkins et al. 2007:247 [ref. 30019], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2232 [ref. 32160]). Current status: Valid as Petrocephalus bovei (Valenciennes 1847). Mormyridae. Distribution: Africa. Habitat: freshwater.

bozasi, Mormyrops Pellegrin [J.] 1903:327 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 9 (no. 7); ref. 13919] Ouellé River, Congo. Holotype (unique): MNHN 1903-0308. Type catalog: Bertin 1940:269 [ref. 293]. •Synonym of Mormyrus rume Valenciennes 1847 -- (Gosse 1984:106 [ref. 6169]). Current status: Synonym of Mormyrus rume Valenciennes 1847. Mormyridae. Habitat: freshwater.

brachistius, Marcusenius Boulenger [G. A.] 1909:67, Fig. 50 [Catalogue of the fresh-water fishes of Africa v. 1; ref. 14364] Unjustified emendation of Marcusenius brachyistius Gill 1862. •In the synonymy of Brienomyrus brachyistius (Gill 1862). Unjustified Emend.. Current status: Synonym of Brienomyrus brachyistius (Gill 1862). Mormyridae. Habitat: freshwater.

brachyistius, Marcusenius Gill [T. N.] 1862:139 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 14; ref. 1661] Locality not known, probably Liberia. Holotype (unique): USNM 4098 (poor condition). Published before 27 May 1862. •Valid as Brienomyrus brachyistius (Gill 1862) -- (Gosse 1984:63 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480] dated 1863, Paugy & Bénech 1989:299 [ref. 26478] dated 1863, Paugy et al. 1990:336 [ref. 26477] dated 1863, Bigorne in Lévêque et al. 1990:162 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:16 [ref. 28023], Hopkins et al. 2007:313 [ref. 30019], Pezold et al. 2016:102 [ref. 34870], Skelton 2019:226 [ref. 36564], Fermon et al. 2022:122 [ref. 39448], Walsh et al. 2022:[5] [ref. 39281]). Current status: Valid as Brienomyrus brachyistius (Gill 1862). Mormyridae. Distribution: Western-central Africa: Gambia to Congo. Habitat: freshwater.

bredoi, Gnathonemus Poll [M.] 1945:49, Fig. 5 [Revue de Zoologie et de Botanique Africaines v. 39 (no. 1); ref. 13133] Pweto, Lake Moero [Lake Mweru], Democratic Republic of Congo. Holotype (unique): MRAC 56009. Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Campylomormyrus bredoi (Poll 1945) -- (Gosse 1984:66 [ref. 6169]). Current status: Valid as Campylomormyrus bredoi (Poll 1945). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

brevicaudatus, Gnathonemus Pellegrin [J.] 1919:206 [Bulletin de la Société Zoologique de France v. 44 (no. 5/7); ref. 15224] Gribingui River, Congo. Syntypes: MNHN 1919-0096 to 0101 (1, 1, 1, 5, 5, 9). Type catalog: Bertin 1940:265 [ref. 293], Poll 1948:77 [ref. 31166]. •Valid as Gnathonemus brevicaudatus Pellegrin 1919 -- (Gosse 1984:71 [ref. 6169]). •Synonym of Gnathonemus petersii (Günther 1862) -- (Bigorne 1990:125 [ref. 20120], Bigorne in Lévêque et al. 1990:135 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Gnathonemus petersii (Günther 1862). Mormyridae. Habitat: freshwater.

breviceps, Mormyrops Steindachner [F.] 1894:66, Pl. 1 (fig. 2) [Notes from the Leyden Museum v. 16 (nos 1-2, art. 1); ref. 4237] St. Paul River, Liberia. Holotype (unique): RMNH 5385. •Valid as Mormyrops breviceps Steindachner 1894 -- (Gosse 1984:92 [ref. 6169], Bigorne 1987:151 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:156 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:16 [ref. 28023], Hopkins et al. 2007:253 [ref. 30019], Kramer 2013:5 [ref. 32882]). Current status: Valid as Mormyrops breviceps Steindachner 1894. Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

brevipedunculatus, Petrocephalus Svensson [G. S. O.] 1933:31, Fig. 11 [Kongliga Vetenskaps-Academiens Handlingar, Stockholm v. 12 (no. 3); ref. 16524] Swamps along Gambia River, western Africa. Syntypes: NRM 11134 (8, now 6), 14488 (3), 31363-65 (1, 1, 1), 31520 (1), 31515 (1), 31520 (1), 31582-83 (2, 1). •Valid as Petrocephalus brevipedunculatus Svensson 1933 -- (Gosse 1984:110 [ref. 6169]). •Synonym of Petrocephalus bovei (Valenciennes 1847) -- (Bigorne in Lévêque et al. 1990:169 [ref. 21589], Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus bovei (Valenciennes 1847). Mormyridae. Distribution: Africa. Habitat: freshwater.

brevis, Marcusenius Boulenger [G. A.] 1913:156 [Revue de Zoologie Africaine v. 2 (fasc. 2); ref. 14944] Dungu, upper Uelé River, Democratic Republic of Congo. Syntypes: BMNH 1912.12.6.1 (1), MRAC 1804 (1). •Valid as Pollimyrus brevis (Boulenger 1913) -- (Gosse 1984:115 [ref. 6169], Kramer et al. 2013:16 [ref. 33002], Skelton 2019:230 [ref. 36564]). Current status: Valid as Pollimyrus brevis (Boulenger 1913). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

brucii, Gnathonemus Boulenger [G. A.] 1910:425 [Annals and Magazine of Natural History (Series 8) v. 6 (no. 34); ref. 14430] Ogun River at Aro, Lagos State, southern Nigeria. Holotype (unique): BMNH 1909.3.3.2. •Valid as Marcusenius brucii (Boulenger 1910) -- (Gosse 1984:80 [ref. 6169], Paugy & Bénech 1989:299 [ref. 26478], Bigorne & Paugy 1990:37 [ref. 13599], Kramer & Wink 2013:8 [2334] [ref. 32824]). •Synonym of Marcusenius senegalensis (Steindachner 1870) -- (Boden, pers. comm.). Current status: Synonym of Marcusenius senegalensis (Steindachner 1870). Mormyridae. Distribution: Western Africa: Bight Drainages ecoregion endemic [if valid]. Habitat: freshwater.

bruyerei, Gnathonemus Pellegrin [J.] 1904:441 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 10 (no. 7); ref. 15196] Ivory Coast. Holotype (unique): MNHN 1894-0396. Type catalog: Bertin 1940:265 [ref. 293]. •Valid as Marcusenius bruyerei (Pellegrin 1904) -- (Gosse 1984:80 [ref. 6169]). •Synonym of Marcusenius ussheri (Günther 1867) -- (Bigorne in Lévêque et al. 1990:146 [ref. 21589], Paugy et al. 1990:337 [ref. 26477]). Current status: Synonym of Marcusenius ussheri (Günther 1867). Mormyridae. Habitat: freshwater.

budgetti, Marcusenius Boulenger [G. A.] 1904:197, Pl. 7 (fig. 1) [Proceedings of the Zoological Society of London 1904, v. 1 (pt 1) (art. 3); ref. 15111] Assay, southern Nigeria. Holotype (unique): BMNH 1904.1.20.9. •Valid as Pollimyrus budgetti (Boulenger 1904) -- (Gosse 1984:115 [ref. 6169]). •Synonym of Hippopotamyrus psittacus (Boulenger 1897) -- (Bigorne in Lévêque et al. 1990:150 [ref. 21589], Bigorne 1991:314 [ref. 20236], Lévèque et al. 1991:138 [ref. 31367]). •Synonym of Cyphomyrus psittacus (Boulenger 1897) -- (Kramer & van der Bank 2011:2686 [ref. 31546]). Current status: Synonym of Cyphomyrus psittacus (Boulenger 1897). Mormyridae. Habitat: freshwater.

bumbanus, Mormyrus Boulenger [G. A.] 1909:186 [Annals and Magazine of Natural History (Series 8) v. 4 (no. 21); ref. 576] Bumba River at Assobam, southern Cameroon. Holotype (unique): BMNH 1909.7.9.25. •Synonym of Mormyrus caballus Boulenger 1898, but a valid subspecies -- (Gosse 1984:98 [ref. 6169], Munene et al. 2021:21 [ref. 39283]). Current status: Synonym of Mormyrus caballus Boulenger 1898. Mormyridae. Habitat: freshwater.

caballus, Mormyrops Pellegrin [J.] 1927:296 [Bulletin de la Société Zoologique de France v. 52 (no. 4); ref. 3407] Sanaga River at Nanga-Eboko and Nyong River at Dehane, Cameroon. Syntypes: MNHN 1927-0157 to 0158 (1, 1). Type catalog: Bertin 1940:263 [ref. 293]. Not the same as Mormyrus caballus Boulenger 1898. •Valid as Mormyrops caballus Pellegrin 1927 -- (Gosse 1984:93 [ref. 6169], Bigorne 1987:156 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:155 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Lévèque et al. 1991:138 [ref. 31367], Hopkins et al. 2007:253 [ref. 30019], Kiselkewa et al. 2020:[7] 706 [ref. 38315], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Mormyrops caballus Pellegrin 1927. Mormyridae. Distribution: Western-central Africa. Habitat: freshwater.

caballus, Mormyrus Boulenger [G. A.] 1898:16, Pl. 8 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Congo. Holotype (unique): MRAC 125 [or B154]. •Valid as Mormyrus caballus Boulenger 1898 -- (Gosse 1984:98 [ref. 6169], Skelton 2019:231 [ref. 36564]). Current status: Valid as Mormyrus caballus Boulenger 1898. Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

cabrae, Marcusenius Boulenger [G. A.] 1900:130, Pl. 48 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 6); ref. 555] Kop-Malafu, Mayumbe [Mayombe]. Syntypes: BMNH 1899.11.27.91 (1), MRAC 274-275 (1, 1). •Synonym of Pollimyrus kingsleyae (Günther 1896) -- (Gosse 1984:117 [ref. 6169]). •Synonym of Brienomyrus kingsleyae (Günther 1896) -- (authors). •Synonym of Paramormyrops kingsleyae (Günther 1896) -- (Rich et al. 2017:[13] [ref. 35306]). Current status: Synonym of Paramormyrops kingsleyae (Günther 1896). Mormyridae. Habitat: freshwater.

casalis, Mormyrus Vinciguerra [D.] 1922:380 [7], Pl. 5 (fig. 2) [Annali del Museo Civico di Storia Naturale di Genova (Serie 3). v. 9 (no. 49); ref. 15391] Webi Shebeli, Somalia. Holotype (unique): MSNG 17625. Type catalog: Tortonese 1961:182 [ref. 10343]. On p. 7 of separate. •Valid as Mormyrus casalis Vinciguerra 1922 -- (Gosse 1984:99 [ref. 6169]). Current status: Valid as Mormyrus casalis Vinciguerra 1922. Mormyridae. Distribution: Eastern Africa. Habitat: freshwater.

caschive, Mormyrus Linnaeus [C.] (ex Hasselquist) 1758:327 [Systema Naturae, Ed. X v. 1; ref. 2787] Nile River, Egypt. No types known. Not available, name published in synonymy of Mormyrus anguilloides by Linnaeus 1758, but validated back to Linnaeus according to ICZN Art. 11.6.1 by subsequent recognition as a valid species by Walbaum 1792. Based on Hasselquist 1757:398 [ref.30181], a rejected work (ICZN Opinion 57). •Valid as Mormyrus caschive Linnaeus 1758 -- (Gosse 1984:99 [ref. 6169], Neumann et al. 2016:303 [ref. 35036], Akoth et al. 2023:7 [ref. 40069]). Current status: Valid as Mormyrus caschive Linnaeus 1758. Mormyridae. Distribution: East Africa. Habitat: freshwater.

caschive, Mormyrus Hasselquist [F.] 1762:440 [Reise nach Palästina; ref. 18250] Nile River, Egypt. Not available, published in a rejected work (ICZN, Opinion 57). Also preoccupied by Mormyrus caschive Linnaeus 1758. Based on Hasselquist 1757:398 [ref. 30181], also a rejected work (ICZN Opinion 57). •In the synonymy of Mormyrus caschive Walbaum 1792. Suppressed. Current status: Synonym of Mormyrus caschive Linnaeus 1758. Mormyridae.

cassaicus, Gnathonemus Poll [M.] 1967:77, Fig. 26 [Publicações Culturais, Companhia de Diamantes de Angola (DIAMANG), Lisboa No. 75; ref. 3528] Dundo, Luachimo River, Angola. Holotype: MD 438. Paratypes: MRAC 158477 [ex MD] (1). Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Campylomormyrus cassaicus (Poll 1967) -- (Gosse 1984:66 [ref. 6169], Skelton 2019:231 [ref. 36564], Kiselkewa et al. 2020:[7] 706 [ref. 38315] as aff. cassaicus). Current status: Valid as Campylomormyrus cassaicus (Poll 1967). Mormyridae. Distribution: Central Africa: Congo River basin (Angola, Democratic Republic of Congo and Zambia). Habitat: freshwater.

castelnaui, Marcusenius Boulenger [G. A.] 1911:402, Pl. 38 (fig. 1) [Transactions of the Zoological Society of London v. 18 (pt 5, no. 1) (art. 5); ref. 14776] Lake Ngami basin, Bechuanaland [Botswana], southern Africa. Syntypes: BMNH 1910.5.31.11-12 (2) Okovango R. •Valid as Pollimyrus castelnaui (Boulenger 1911) -- (Gosse 1984:115 [ref. 6169], Skelton 1993:100 [ref. 24071], van der Bank & Kramer 1996:276 [ref. 29516], Skelton 2001:100 [ref. 27406], Kramer et al. 2003:54 [ref. 27466], Snoeks 2004:20 [ref. 28111], Kramer et al. 2013:17 [ref. 33002], Bruton et al. 2018:37 [ref. 36373], Skelton 2019:230 [ref. 36564], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Pollimyrus castelnaui (Boulenger 1911). Mormyridae. Distribution: Southern and central Africa. Habitat: freshwater.

castor, Hippopotamyrus Pappenheim [P.] 1906:260 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1906 (no. 10); ref. 3360] Lokundi River near Bipindi, Cameroon. Syntypes: BMNH 1907.12.3.2 [ex ZMB] (1), ZMB 15199 (now 1). •Valid as Hippopotamyrus castor Pappenheim 1906 -- (Myers 1960:124 [ref. 3128], Gosse 1984:74 [ref. 6169], Bigorne in Lévêque et al. 1990:150 [ref. 21589], Hopkins et al. 2007:291 [ref. 30019], Kramer & Swartz 2010:2229 [ref. 30915], Kramer & van der Bank 2011:2692 [ref. 31546], Fermon et al. 2022:123 [ref. 39448]). Current status: Valid as Hippopotamyrus castor Pappenheim 1906. Mormyridae. Distribution: West-central Africa: Cameroon south to Ntem basin (Gabon). Habitat: freshwater.

catostoma, Mormyrus Günther [A.] 1866:222 [Catalogue of the fishes in the British Museum v. 6; ref. 1983] Rovuma [Ruvuma] River, Tanzania/Mozambique, southern Africa. Lectotype: BMNH 1863.10.12.4. Paralectotypes: BMNH 1863.10.12.5-6 (4). Lectotype selected by Whitehead & Greenwood 1959:284 [ref. 12037]. •Valid as Petrocephalus catostoma (Günther 1866) -- (Gosse 1984:110 [ref. 6169], Skelton 1993:99 [ref. 24071], Seegers 1996:82 [ref. 23725], Kramer & van der Bank 2000:393 [ref. 25762], Skelton 2001:99 [ref. 27406], van der Bank & Kramer 1996:282 [ref. 29516]). •Valid as Petrocephalus catostoma (Günther 1866), subspecies catostoma (Günther 1866) -- (De Vos et al. 2001:131 [ref. 26059], Seegers et al. 2003:29 [ref. 28087], Snoeks 2004:20 [ref. 28111], Lavoué et al. 2010:44 [ref. 30944], Lavoué 2011:26 [ref. 31401], Marshall 2011:54 [ref. 31755], Kramer et al. 2012:2232, 2233 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Abwe et al. 2023:28 [ref. 39992], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Petrocephalus catostoma (Günther 1866). Mormyridae. Distribution: Southern-central Africa: Rovuma River system and western confluences to Lake Malawi; upper Congo River basin (Burundi, Tanzania, Mozambique, Democratic Republic of Congo). Habitat: freshwater.

caudisquamatus, Marcusenius Maake [P. A.], Gon [O.] & Swartz [E. R.] 2014:466, Fig. 2c [Zootaxa 3780 (no. 3); ref. 33223] Mhlatuze River, under the bridge on road R102, South Africa, 28°50'44.2"S, 31°51'59.6"E. Holotype: SAIAB 88684. Paratypes: BMNH 2013 9.4.74 (1); MRAC B3-16-P-3 (1); SAIAB 79149 (4), 88692 (2), 96543 (2), 96607 (2), 191225 (6); USNM 410775 (1). •Valid as Marcusenius caudisquamatus Maake, Gon & Swartz 2014 -- (Kramer et al. 2016:6 [ref. 34331], Kramer et al. 2016:368 [ref. 34938]). Current status: Valid as Marcusenius caudisquamatus Maake, Gon & Swartz 2014. Mormyridae. Distribution: Nseleni and the Mhlatuze rivers in KwaZulu-Natal, South Africa. Habitat: freshwater.

chariensis, Hyperopisus bebe Blache [J.] 1964:28, Fig. 3 [Mémoires de l'ORSTOM (Office de la Recherche Scientifique et Technique Outre-Mer) No. 4; ref. 7943] Lake Chad basin. Syntypes: (104). •Synonym of Hyperopisus bebe (Lacepède 1803) -- (Gosse 1984:78 [ref. 6169], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Hyperopisus bebe (Lacepède 1803). Mormyridae. Habitat: freshwater.

christyi, Gnathonemus Boulenger [G. A.] 1920:13, Fig. 4 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 4); ref. 587] Kinshasa [Leopoldville], Democratic Republic of Congo. Syntypes: BMNH 1919.9.10.56 (1), MRAC 7385 (1). •Valid as Campylomormyrus christyi (Boulenger 1920) -- (Gosse 1984:66 [ref. 6169]). Current status: Valid as Campylomormyrus christyi (Boulenger 1920). Mormyridae. Habitat: freshwater.

christyi, Petrocephalus Boulenger [G. A.] 1920:11, Fig. 2 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 4); ref. 587] Tributary of Lindi River at Bosabangui, vicinity of city of Kisangani, estimated 0.53°N, 25.19°E, Central African Republic. Syntypes: MRAC 7145-51 (7). See Lovoué et al. 2010:25 [ref. 30944] for locality details. •Valid as Petrocephalus christyi Boulenger 1920 -- (Gosse 1984:112 [ref. 6169], Lavoué et al. 2004:526 [ref. 27871], Hopkins et al. 2007:237 [ref. 30019], Lavoué et al. 2010:25 [ref. 30944], Kramer et al. 2012:2232 [ref. 32160], Lavoué 2012:2167 [ref. 32189], Lavoué 2016:327 [ref. 34484], Skelton 2019:230 [ref. 36564], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000], Fermon et al. 2022:127 [ref. 39448] with question). Current status: Valid as Petrocephalus christyi Boulenger 1920. Mormyridae. Distribution: Western-central Africa: Congo River basin (Central African Republic, Democratic Republic of Congo, Angola). Habitat: freshwater.

citernii, Mormyrops Vinciguerra [D.] 1912:295 [3] [Annali del Museo Civico di Storia Naturale di Genova (Serie 3). v. 45; ref. 14989] Upper Genale River, Ethiopia. Holotype (unique): MSNG 2065 (dry). Type catalog: Tortonese 1961:182 [ref. 10343]. On p. 3 of separate. •Valid as Mormyrops citernii Vinciguerra 1912 -- (Gosse 1984:93 [ref. 6169], Seegers et al. 2003:29 [ref. 28087] dated to 1913). Current status: Valid as Mormyrops citernii Vinciguerra 1912. Mormyridae. Distribution: Eastern Africa. Habitat: freshwater.

cobitiformis, Mormyrus Peters [W. (C. H.)] 1882:72 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1882; ref. 18547] Tooxlong River, West Africa. Syntypes: ZMB 11891 (2). •Synonym of Isichthys henryi Gill 1863 -- (Gosse 1984:79 [ref. 6169]). Current status: Synonym of Isichthys henryi Gill 1863. Mormyridae. Habitat: freshwater.

comoensis, Petrocephalus bane de Merona [B.] 1979:46, Fig. 1 [Cybium 3e série. Bulletin de la Société Française d'Ichtyologie No. 7; ref. 9004] Comoé River, Gansé, Ivory Coast. Holotype: MNHN 1979-0164. Paratypes: MNHN 1979-0165 (4). Additional material: MNHN 1960-0299 (2). •Valid as Petrocephalus comoensis de Merona 1979 -- (Gosse 1984:109 [ref. 6169]). •Synonym of Petrocephalus bane (Lacepède 1803), but a valid subspecies as described -- (Bigorne in Lévêque et al. 1990:169 [ref. 21589], Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus bane (Lacepède 1803). Mormyridae. Habitat: freshwater.

compressirostris, Gnathonemus Pellegrin [J.] 1924:7 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Mouth of Congo River at Boma, Democratic Republic of Congo. Holotype: MRAC 15063. Genus misspelled Grathonemus in original. •Synonym of Campylomormyrus rhynchophorus (Boulenger 1898) -- (Gosse 1984:69 [ref. 6169]). Current status: Synonym of Campylomormyrus rhynchophorus (Boulenger 1898). Mormyridae. Habitat: freshwater.

congicus, Petrocephalus stuhlmanni David [L.] & Poll [M.] 1937:199, Fig. 1a [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 3 (fasc. 5); ref. 1043] Mukishi River at Lumami, Congo River basin, Democratic Republic of Congo (8°30'S, 24°44'E). Syntypes: MRAC 30807-08 (2). Type catalog: Derijst 1991:62 [ref. 21528]. •Synonym of Petrocephalus catostoma (Günther 1866), but a valid subspecies as described -- (Gosse 1984:111 [ref. 6169], Lavoué et al. 2010:44 [ref. 30944]). •Valid as Petrocephalus congicus David & Poll 1937 -- (Kramer et al. 2012:2232, 2235 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Stiassny et al. 2021:1686 [ref. 39000] as cf. congicus). Current status: Valid as Petrocephalus congicus David & Poll 1937. Mormyridae. Distribution: Western-central Africa: Congo River basin. Habitat: freshwater.

conicephalus, Marcusenius Taverne [L.], Thys van den Audenaerde [D. F. E.] & Heymer [A.] 1976:878, Fig. 4 [Revue de Zoologie Africaine v. 90 (no. 4); ref. 7396] Aboulou Village, Kom River, tributary of Ntem River, Cameroon. Holotype: MRAC 73-18-P-83. Paratypes: MNHN 1977-0020 (2); MRAC 73-18-P-84 (1), 73-18-P-85-93 (9), 73-18-P-94-127 (orig. 34), 75-24-P-3 (1), 75-24-P-423 (1). •Valid as Marcusenius conicephalus Taverne, Thys van den Audenaerde & Heymer 1976 -- (Gosse 1984:80 [ref. 6169]). •Synonym of Marcussenius ntemensis (Pellegrin 1927) -- (Teugels et al. 2001:246 [ref. 25701]). Current status: Synonym of Marcusenius ntemensis (Pellegrin 1927). Mormyridae. Habitat: freshwater.

corneti, Stomatorhinus Boulenger [G. A.] 1899:71, Pl. 31 (fig. 5) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Stanley Pool, Congo. Holotype (unique): MRAC 638. •Valid as Stomatorhinus corneti Boulenger 1899 -- (Gosse 1984:120 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082]). Current status: Valid as Stomatorhinus corneti Boulenger 1899. Mormyridae. Distribution: Congo River basin. Habitat: freshwater.

cuandoensis, Pollimyrus Kramer [L. B.], van der Bank [F. H.] & Wink [M.] 2013:17, Figs. 1K, L [Journal of Natural History v. 48 (7-8); ref. 33002] Kwando River at Kongola Bridge, 17°47'33"S, 23°20'33"E, southern Africa. Holotype: ZSM 41805. Paratypes: ZSM 39522 (16). Plus non-type specimens. •Valid as Pollimyrus cuandoensis Kramer, van der Bank & Wink 2013 -- (Bruton et al. 2018:38 [ref. 36373], Skelton 2019:230 [ref. 36564]). Current status: Valid as Pollimyrus cuandoensis Kramer, van der Bank & Wink 2013. Mormyridae. Distribution: Kwando (Cuando) River, southern Africa. Habitat: freshwater.

cuangoanus, Gnathonemus Poll [M.] 1967:79, Fig. 27 [Publicações Culturais, Companhia de Diamantes de Angola (DIAMANG), Lisboa No. 75; ref. 3528] Zovo, Uamba River, tributary of Cuango River, Angola. Holotype (unique): MRAC 164318 [ex MD 6435]. Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Marcusenius cuangoanus (Poll 1967) -- (Gosse 1984:81 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824], Skelton 2019:231 [ref. 36564]). Current status: Valid as Marcusenius cuangoanus (Poll 1967). Mormyridae. Distribution: Southern Africa. Habitat: freshwater.

cubangoensis, Marcusenius Pellegrin [J.] 1936:48 [Arquivos do Museu Bocage No. 7; ref. 13733] Cubango [Okavango] River, Angola. Syntypes: (8) MHNG 858.85 (1); MNHN 1936-0062 to 0064 (3), 1936-0065 (now 0); MRAC 138760 [ex MNHN 1936-65] (1); NMB 5216 (1). Type catalog: Bertin 1940:268 [ref. 293], Mahnert 1976:474 [ref. 21535], Kottelat & Sutter 1988:52 [ref. 13796], Weber 1998:5 [ref. 32707]. •Synonym of Hippopotamyrus discorhynchus (Peters 1852) -- (Gosse 1984:74 [ref. 6169], Seegers 1996:68 [ref. 23725], Kramer & Swartz 2010:2229 [ref. 30915]). •Valid as Cyphomyrus cubangoensis (Pellegrin 1936) -- (Kramer & van der Bank 2011:2690 [ref. 31546], Bruton et al. 2018:32 [ref. 36373], Skelton 2019:230 [ref. 36564], Mulelenu et al. 2020:12 [ref. 37340], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Cyphomyrus cubangoensis (Pellegrin 1936). Mormyridae. Distribution: Western-central Africa: Okavango River and delta, Kwando River, upper Zambezi River system; Namibia, Zambia, Botswana, Angola; southern Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

cunganus, Petrocephalus Boulenger [G. A.] 1910:539 [Annals and Magazine of Natural History (Series 8) v. 6 (no. 36); ref. 577] Quanza [Cuanza] River at Cunga, Angola. Holotype (unique): BMNH 1910.11.28.27. •Valid as Petrocephalus cunganus Boulenger 1910 -- (Gosse 1984:112 [ref. 6169], Lavoué et al. 2010:51 [ref. 30944], Kramer et al. 2012:2232 [ref. 32160], Skelton 2019:230 [ref. 36564]). Current status: Valid as Petrocephalus cunganus Boulenger 1910. Mormyridae. Distribution: Angola. Habitat: freshwater.

curtus, Mormyrops Boulenger [G. A.] 1899:66, Pl. 32 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Boma, Lower Congo River, Democratic Republic of Congo. Syntypes: BMNH 1899.9.26.8 (1), MRAC 512-515 (4). •Valid as Mormyrops curtus Boulenger 1899 -- (Gosse 1984:93 [ref. 6169]). Current status: Valid as Mormyrops curtus Boulenger 1899. Mormyridae. Distribution: Lower Congo. Habitat: freshwater.

curviceps, Mormyrops Roman [B.] 1966:34, Pl. 1 (fig. 2) [Annales, Musée Royal de l'Afrique Centrale, Tervuren, Série in 8o, Sciences Zoologiques No. 150; ref. 9061] Bougouriba River, tributary of the Black Volta, near Daragré, 10°56'N, 3°39'E, West Africa. Holotype: MRAC 140934. Paratypes: MRAC 140935-43 (9). •Valid as Mormyrus curviceps (Roman 1966) -- (Gosse 1984:93 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758) -- (Bigorne 1987:146 [ref. 20556], Paugy & Bénech 1989:299 [ref. 26478], Bigorne in Lévêque et al. 1990:157 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Lévèque et al. 1991:138 [ref. 31367], Kramer 2013:8 [ref. 32882]). •Valid as Mormyrops curviceps Roman 1966 -- (Moller & Brown 1990 [ref. 21031]). Current status: Valid as Mormyrops curviceps Roman 1966. Mormyridae. Distribution: Africa. Habitat: freshwater.

curvifrons, Brienomyrus Taverne [L.], Thys van den Audenaerde [D. F. E.], Heymer [A.] & Géry [J.] 1977:205, Fig. 2 [Revue de Zoologie Africaine v. 91 (no. 1); ref. 17898] Ivindo River, near M'Passa, Makokou, Gabon. Holotype: MRAC 75-24-P-132. Paratypes: MRAC 75-24-P-135 (1), 75-24-P-277 (1). •Valid as Brienomyrus curvifrons Taverne, Thys van den Audenaerde, Heymer & Géry 1977 -- (Gosse 1984:64 [ref. 6169]). •Valid as Paramormyrops curvifrons (Taverne, Thys van den Audenaerde, Heymer & Géry 1977) -- (Hopkins et al. 2007:305 [ref. 30019], Rich et al. 2017:[13] [ref. 35306], Fermon et al. 2022:124 [ref. 39448]). Current status: Valid as Paramormyrops curvifrons (Taverne, Thys van den Audenaerde, Heymer & Géry 1977). Mormyridae. Distribution: West Africa: Cameroon and Gabon. Habitat: freshwater.

curvifrons, Mormyrus Pellegrin [J.] 1904:438 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 10 (no. 7); ref. 15196] Mokaka, Congo. Syntypes: MNHN 1986-0335 (1), 1986-0336 (1). Type catalog: Bertin 1940:269 [ref. 293]. •Synonym of Mormyrus caballus Boulenger 1898 -- (Gosse 1984:98 [ref. 6169]). Current status: Synonym of Mormyrus caballus Boulenger 1898. Mormyridae. Habitat: freshwater.

curvirostris, Gnathonemus Boulenger [G. A.] 1898:13, Pl. 6 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Matadi, Lower Congo River, Democratic Republic of Congo. Holotype (unique): MRAC 38. •Valid as Campylomormyrus curvirostris (Boulenger 1898) -- (Gosse 1984:67 [ref. 6169], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus curvirostris (Boulenger 1898). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

cyaneus, Mormyrus Roberts [T. R.] & Stewart [D. J.] 1976:268, Pl. 5 (fig. c) [Bulletin of the Museum of Comparative Zoology v. 147 (no. 6); ref. 7388] Lower Congo River, Democratic Republic of Congo, 5°31.5'S, 13°37.5'E. Holotype: MCZ 50497. Paratypes: BMNH 1976.5.21.5-8 [ex MCZ 50498] (4), MCZ 50266 (2), 50430 (3), 50498 (orig. 46, now 36); MRAC 76-17-P-1-2 [ex MCZ 50498] (2); USNM 216375 [ex MCZ 50498] (4). •Valid as Mormyrus cyaneus Roberts & Stewart 1976 -- (Gosse 1984:100 [ref. 6169]). Current status: Valid as Mormyrus cyaneus Roberts & Stewart 1976. Mormyridae. Distribution: Lower Congo. Habitat: freshwater.

cyprinoides, Mormyrus Linnaeus [C.] 1758:327 [Systema Naturae, Ed. X v. 1; ref. 2787] Nile River. Holotype (unique): NRM 62. Type catalog: Fernholm & Wheeler 1983:210 [ref. 20707]. •Valid as Marcusenius cyprinoides (Linnaeus 1758) -- (Gosse 1984:81 [ref. 6169], Bigorne & Paugy 1990:38 [ref. 13599], Kramer & Wink 2013:8 [2334] [ref. 32824], Neumann et al. 2016:303 [ref. 35036], Akoth et al. 2023:7 [ref. 40069]). Current status: Valid as Marcusenius cyprinoides (Linnaeus 1758). Mormyridae. Distribution: Africa: Nile River system. Habitat: freshwater.

deboensis, Gnathonemus Daget [J.] 1954:87, Fig. 22 [Mémoires de l'Institut français d'Afrique Noire No. 36; ref. 11989] Lake Debo, Upper Niger, western Africa. Holotype (unique): IFAN. •Valid as Marcusenius deboensis (Daget 1954) -- (Gosse 1984:82 [ref. 6169], Bigorne in Lévêque et al. 1990:148 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367] as a dubius species, Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius deboensis (Daget 1954). Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

degeni, Petrocephalus Boulenger [G. A.] 1906:434 [Annals and Magazine of Natural History (Series 7) v. 17 (no. 101) (art. 49); ref. 574] Mouth of Katonga River, Lake Victoria [Victoria Nyanza], Uganda, Holotype (unique): BMNH 1906.5.30.84. •Synonym of Petrocephalus catostoma (Günther 1866) -- (Gosse 1984:111 [ref. 6169], Seegers 1996:82 [ref. 23725], Seegers et al. 2003:29 [ref. 28087]). •Valid as Petrocephalus degeni Boulenger 1906 -- (Kramer et al. 2012:2232, 2235 [ref. 32160], Akoth et al. 2023:8 [ref. 40069]). Current status: Valid as Petrocephalus degeni Boulenger 1906. Mormyridae. Distribution: East Africa: Lake Victoria basin. Habitat: freshwater.

deliciosus, Oxyrhynchus Leach [W. E.] in Tuckey 1818:410 [A general notice of the animals taken by Mr. John Cranch; ref. 5023] Congo River, Democratic Republic of Congo. Type: BMNH 1979.5.29.1 (dry). •Valid as Mormyrops deliciosus (Leach 1818) -- (Gosse 1984:93 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758) -- (Bigorne 1987:146 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Paugy & Bénech 1989:299 [ref. 26478], Bigorne in Lévêque et al. 1990:157 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Lévèque et al. 1991:138 [ref. 31367], Seegers et al. 2003:29 [ref. 28087], Kramer 2013:8 [ref. 32882]). •Synonym of Mormyrops angulloides (Linnaeus 1758) but a valid subspecies -- (Snoeks 2004:20 [ref. 28111]). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

dendera, Mormyrus Lacepède [B. G. E.] 1803:619, 621 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Cairo, Egypt. No types known. •Synonym of Mormyrops anguilloides (Linnaeus 1758) -- (Gosse 1984:91 [ref. 6169]). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

dequesne, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:281 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River. Lectotype: MNHN A-9622. Paralectotypes: MNHN A-909 (1). Type catalog: Bertin 1940:263 [ref. 293] with MNHN A.9622 as holotype. Lectotype designated by Eschmeyer 1998:471 [ref. 23416]. •Synonym of Petrocephalus bane (Lacepède 1803) -- (Gosse 1984:108 [ref. 6169] with holotype and paratype, Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus bane (Lacepède 1803). Mormyridae. Habitat: freshwater.

desertus, Marcusenius Kramer [L. B.], van der Bank [F. H.] & Wink [M.] 2016:6, Figs. 2Aa, 2Ab, 2B [African Journal of Aquatic Science v. 41 (no. 1); ref. 34331] Lowest part of the Cunene River close to its mouth, Namibia, 17°15'29.3"S, 11°45'55.0"E. Holotype: ZSM 43802. Paratypes: SAIAB, ZSM. Plus non-type specimens. •Valid as Marcusenius desertus Kramer, van der Bank & Wink 2016 -- (Skelton 2019:231 [ref. 36564]). Current status: Valid as Marcusenius desertus Kramer, van der Bank & Wink 2016. Mormyridae. Distribution: Mouth of the Cunene River, Namibia and Angola. Habitat: freshwater.

devosi, Marcusenius Kramer [L. B.], Skelton [P. H.], van der Bank [F. H.] & Wink [M.] 2007:686, Fig. 1G [Journal of Natural History v. 41 (9-12); ref. 29168] Lower Tana River near village Wenje, Kenya, 1°52'38.1"S, 40°08'22.5"E. Holotype: SAIAB 79138. Paratypes: SAIAB 79139 (14); ZSM 35091 (1), 35092 (1), 35093 (4), 35094 (7). Type catalog: Neumann 2011:271 [ref. 31652]. •Valid as Marcusenius devosi Kramer, Skelton, van der Bank & Wink 2007 -- (Kramer & Wink 2013:8 [2344] [ref. 32824], Maake et al. 2014:466 [ref. 33223], Kramer et al. 2016:7 [ref. 34331], Kramer et al. 2016:368 [ref. 34938]). Current status: Valid as Marcusenius devosi Kramer, Skelton, van der Bank & Wink 2007. Mormyridae. Distribution: Tana River, Kenya. Habitat: freshwater.

discorhynchus, Mormyrus Peters [W. (C. H.)] 1852:275 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1852; ref. 18539] Lower Zambezi River, Mozambique. Lectotype: ZMB 3674. Paralectotypes: ZMB 3673 (1), 3675-76 (1, 1), 23374 (1). Also in Peters 1868:75, Pl. 14 [ref. 3440]. Lectotype selected by Seegers 1996:69 [ref. 23725]. •Valid as Cyphomyrus discorhynchus (Peters 1852) -- (Myers 1960:125 [ref. 3128], van der Bank & Kramer 1996:287 [ref. 29516], Skelton 2001:97 [ref. 27406], Lavoué et al. 2003:288 [ref. 29517]). •Valid as Hippopotamyrus discorhynchus (Peters 1852) -- (Gosse 1984:74 [ref. 6169], Seegers 1996:68 [ref. 23725], De Vos et al. 2001:129, 131 [ref. 26059], Snoeks 2004:20 [ref. 28111], Kullander & Roberts 2012:368 [ref. 31751]). •Valid as Cyphomyrus discorhynchus (Peters 1952) -- (Kramer & van der Bank 2011:2669, 2689 [ref. 31546], Marshall 2011:48 [ref. 31755], Mulelenu et al. 2020:12 [ref. 37340], Munene et al. 2021:20 [ref. 39283], Abwe et al. 2023:28 [ref. 39992], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Cyphomyrus discorhynchus (Peters 1852). Mormyridae. Distribution: Central and southern Africa. Habitat: freshwater.

donnyi, Genyomyrus Boulenger [G. A.] 1898:17, Pl. 9 [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo River, Democratic Republic of Congo, about 2°N, 21°30'E. Syntypes: (3) BMNH 1898.11.12.25 (1), BMNH (1, skeleton); MRAC 129 (1). •Valid as Genyomyrus donnyi Boulenger 1898 -- (Gosse 1984:70 [ref. 6169], Poll & Gosse 1995:131 [ref. 24781]). Current status: Valid as Genyomyrus donnyi Boulenger 1898. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

dorsalis, Mormyrus Geoffroy St. Hilaire [E.] 1809:[269], Pl. 8 (figs. 1-2) [Poissons du Nil v. 1 (part 1); ref. 4182] Nile River, Egypt. Syntypes: MNHN 1959 (4), 1960 (2), A-9629 (1). Type catalog: Bertin 1940:270 [ref. 293]. The page number is from a different edition. •Synonym of Hyperopisus bebe (Lacepède 1803) -- (Gosse 1984:77 [ref. 6169]). Current status: Synonym of Hyperopisus bebe (Lacepède 1803). Mormyridae. Habitat: freshwater.

dundoensis, Gnathonemus Poll [M.] 1967:81, Fig. 28 [Publicações Culturais, Companhia de Diamantes de Angola (DIAMANG), Lisboa No. 75; ref. 3528] Near Dundo, Sanga River, tributary of Luachimo River, Angola. Holotype: MD 1040. Paratypes: MRAC 158528-30 (3), 158531-33 (1, 1, 1); MD 1040 (3), 454 (3), 2381 (2), 6324 (1), 6357 (1). Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Marcusenius dundoensis (Poll 1967) -- (Gosse 1984:82 [ref. 6169], Boden et al. 1997:1168 [ref. 23218], Kramer & Wink 2013:8 [2334] [ref. 32824], Skelton 2019:231 [ref. 36564], Decru et al. 2019:233 [ref. 36749]). Current status: Valid as Marcusenius dundoensis (Poll 1967). Mormyridae. Distribution: Middle Congo basin, Angola. Habitat: freshwater.

eburneensis, Pollimyrus kingsleyae Bigorne [R.] 1991:321 [Revue d'Hydrobiologie Tropicale v. 23 (no. 4) [1990]; ref. 20236] Agnébi, Ivory Coast. Holotype: MNHN 1990-0376. Paratypes: MNHN 1970-0006 (3), 1970-0086 (1), 1979-0135 (1); MRAC 73-5-P-49-53 (5). •Synonym of Pollimyrus kingsleyae (Günther 1896), but a valid subspecies as described -- (Bigorne in Lévêque et al. 1990:179 [ref. 21589]). •Valid as Pollimyrus eburneensis Bigorne 1991 -- (Rich et al. 2017:[13] [ref. 35306]). Current status: Valid as Pollimyrus eburneensis Bigorne 1991. Mormyridae. Distribution: Agnébi, San Pedro and Banco Rivers, Ivory Coast, West Africa. Habitat: freshwater.

echidnorhynchus, Gnathonemus Pellegrin [J.] 1924:5 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Kasaï River at Kamaiembi, Democratic Republic of Congo. Syntypes: MNHN 1923-0171 (1), MRAC 15123-24 (1, 1). Type catalog: Bertin 1940:266 [ref. 293]. •Valid as Gnathonemus echidnorhynchus Pellegrin 1924 -- (Gosse 1984:71 [ref. 6169], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Gnathonemus echidnorhynchus Pellegrin 1924. Mormyridae. Distribution: Western-central Africa: Congo River system (Democratic Republic of Congo). Habitat: freshwater.

ehrenbergii, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:283 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River, Egypt. Lectotype: MNHN A-9623. Paralectotypes: MNHN 0000-9890 (1, dry) White Nile. Type catalog: Bertin 1940:263-264 [ref. 293] with MNHN A.9623 as holotype. Lectotype designated by Eschmeyer 1998:512 [ref. 23416]. •Synonym of Petrocephalus bane (Lacepède 1803) -- (Gosse 1984:108 [ref. 6169] with holotype and paratype, Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus bane (Lacepède 1803). Mormyridae. Habitat: freshwater.

elegans, Marcusenius Fricke [R.] & Kramer [L. B.] 2022:499 [Zootaxa 5175 (no. 4); ref. 39495] Comoé River, Kafolo, Mouches Tsété, 9°356'N, 4°19'W, Ivory Coast. Holotype: ZSM 42204. Paratypes: 16, all at ZSM. Replacement name for Marcusenius gracilis Kramer 2013. •Valid as Marcusenius elegans Fricke & Kramer 2022. Replacement Name. Current status: Valid as Marcusenius elegans Fricke & Kramer 2022. Mormyridae. Distribution: West Africa: Ivory Coast. Habitat: freshwater.

elephas, Gnathonemus Boulenger [G. A.] 1898:12, Pl. 5 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Syntypes: BMNH 1898.11.12.20 (1), MRAC 128 (1). •Valid as Campylomormyrus elephas (Boulenger 1898) -- (Gosse 1984:67 [ref. 6169], Skelton 2019:231 [ref. 36564], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus elephas (Boulenger 1898). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

ellenbergeri, Mormyrus Pellegrin [J.] 1914:24 [Bulletin de la Société Zoologique de France v. 39 (no. 1); ref. 14165] Zambezi River at Léalui, Zambia. Syntypes: MNHN 1913-0299 (1), 1913-0300 (1). Type catalog: Bertin 1940:269 [ref. 293]. •Synonym of Mormyrus lacerda Castelnau 1861 -- (Gosse 1984:102 [ref. 6169]). Current status: Synonym of Mormyrus lacerda Castelnau 1861. Mormyridae. Habitat: freshwater.

elongata, Gnathonemus cyprinoides var. Pellegrin [J.] 1927:299 [Bulletin de la Société Zoologique de France v. 52 (no. 4); ref. 3407] Lake Chad, Soueïram, Cameroon. Syntypes: MNHN 1927-0163 to 0165 (1, 1, 1). Type catalog: Bertin 1940:266 [ref. 293]. •Synonym of Marcusenius cyprinoides (Linnaeus 1758) -- (Gosse 1984:82 [ref. 6169]). Current status: Synonym of Marcusenius cyprinoides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

elongatus, Gnathonemus Pfaff [J. R.] 1933:276, Fig. 1 [Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, Kjøbenhavn v. 94; ref. 16517] Kabara, Mali, West Africa. Holotype (unique): ZMUC P21177. Type catalog: Nielsen 1974:29 [ref. 9588]. Subjectively invalid; secondarily preoccupied by Mormyrus elongatus Rüppell 1832 in Gnathonemus. Replaced by Gnathonemus pfaffi Fowler 1958. •Synonym of Marcusenius senegalensis (Steindachner 1870) -- (Daget 1984:89 [ref. 6170], Lévèque et al. 1991:138 [ref. 31367]). 2°Homonym. Current status: Synonym of Marcusenius senegalensis (Steindachner 1870). Mormyridae. Habitat: freshwater.

elongatus, Mormyrops Norman [J. R.] 1935:215, Fig. 1 [Annals and Magazine of Natural History (Series 10) v. 15 (no. 86, art. 17); ref. 13915] Ejura, Ashanti Forest, Ghana. Holotype (unique): BMNH 1934.8.31.2. •Valid as Mormyrops elongatus Norman 1935 -- (Gosse 1984:95 [ref. 6169]). •Synonym of Mormyrops breviceps Steindachner 1894 -- (Bigorne 1987:151 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:156 [ref. 21589], Paugy et al. 1990:337 [ref. 26477]). Current status: Synonym of Mormyrops breviceps Steindachner 1894. Mormyridae. Habitat: freshwater.

elongatus, Mormyrus Rüppell [W. P. E. S.] 1832:9, Pl. 2 (fig. 1) [Fortsetzung der Beschreibung und Abbildung meherer neuer Fische; ref. 18643] Cairo, Egypt. Holotype: BMNH 1850.7.29.5. Rüppell specimens: NMW 58916 (1); SMF 644 (2), 2671 (1, dry). •Synonym of Marcusenius cyprinoides (Linnaeus 1758) -- (Gosse 1984:81 [ref. 6169]). Current status: Synonym of Marcusenius cyprinoides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

engystoma, Mormyrops Boulenger [G. A.] 1898:3, Pl. 1 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Matadi, Lower Congo River, Democratic Republic of Congo. Syntypes: BMNH 1898.11.12.4-5 (2), MRAC 54 (1). •Valid as Mormyrops engystoma Boulenger 1898 -- (Gosse 1984:95 [ref. 6169], Bigorne 1987:158 [ref. 20556], Bigorne in Lévêque et al. 1990:159 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). Current status: Valid as Mormyrops engystoma Boulenger 1898. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

fasciaticeps, Marcusenius Boulenger [G. A.] 1920:12, Fig. 3 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 4); ref. 587] Kinshasa [Leopoldville], Democratic Republic of Congo. Holotype (unique): MRAC 7243. •Synonym of Pollimyrus isidori (Valenciennes 1847), but a valid subspecies -- (Gosse 1984:116 [ref. 6169]). •Synonym of Pollimyrus osborni (Nichols & Griscom 1917). Current status: Synonym of Pollimyrus osborni (Nichols & Griscom 1917). Mormyridae. Habitat: freshwater.

felixi, Mormyrus Pellegrin [J.] 1939:534 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 11 (no. 6); ref. 13068] Cameroon. Holotype (unique): MNHN 1939-0150. Type catalog: Bertin 1940:270 [ref. 293]. •Valid as Mormyrus felixi Pellegrin 1939 -- (Gosse 1984:100 [ref. 6169]). •Synonym of Mormyrus hasselquistii Valenciennes 1847 -- (Lévêque & Bigorne 1985:332 [ref. 5947]). Current status: Synonym of Mormyrus hasselquistii Valenciennes 1847. Mormyridae. Distribution: Africa. Habitat: freshwater.

frieli, Petrocephalus Lavoué [S.] 2012:2170, 3A, B [Journal of Natural History v. 46 (no. 35-36); ref. 32189] Luapula River, Samfa Rapids at pontoon on Chambeshi River, Chambeshi River, 10.85°S, 31.17°E, Congo River basin, Zambia. Holotype: CUMV 96866. Paratypes: CUMV 91140 (1), 91144 (3), 91146 (1), 91152 (5). Appeared first in Kramer et al. 2012:2232 [ref. 32160], with a citation to a paper in press ["forthcoming"]. •Valid as Petrocephalus frieli Lavoué 2012. Current status: Valid as Petrocephalus frieli Lavoué 2012. Mormyridae. Distribution: Upper Luapula River, Congo River basin. Habitat: freshwater.

friteli, Gnathonemus Pellegrin [J.] 1904:440 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 10 (no. 7); ref. 15196] Alima River, Diélé, Congo basin. Holotype (unique): MNHN 1886-0320. Type catalog: Bertin 1940:265 [ref. 293], Poll 1948:77 [ref. 31166]. •Valid as Marcusenius friteli (Pellegrin 1904) -- (Gosse 1984:82 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius friteli (Pellegrin 1904). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

fuliginosus, Stomatorhinus Poll [M.] 1941:2, Fig. 1 [Bulletin du Musée Royal d'Histoire Naturelle de Belgique v. 17 (no. 50); ref. 13177] Mosongolia River, Uele, Ibembo region, Democratic Republic of Congo. Syntypes: IRSNB 66-67 (6, 17); MRAC 66546-53 (8). Type catalog: Walschaerts 1987:10 [ref. 20755], Derijst 1991:66 [ref. 21528]. •Valid as Stomatorhinus fuliginosus Poll 1941 -- (Gosse 1984:121 [ref. 6169], Sullivan & Hopkins 2004:2 [ref. 28082]). Current status: Valid as Stomatorhinus fuliginosus Poll 1941. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

furcidens, Gnathonemus Pellegrin [J.] 1920:117 [Bulletin de la Société Zoologique de France v. 45 (no. 3/7); ref. 15246] Ivory Coast. Syntypes: MNHN 1920-0030 to 0032 (1, 1, 1). Type catalog: Bertin 1940:266 [ref. 293]. •Valid as Marcusenius furcidens (Pellegrin 1920) -- (Gosse 1984:82 [ref. 6169], Bigorne & Paugy 1990:38 [ref. 13599], Bigorne in Lévêque et al. 1990:146 [ref. 21589], Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius furcidens (Pellegrin 1920). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

furcidens, Mormyrops Pellegrin [J.] 1900:350 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 6 (no. 7); ref. 6253] Diélé, Alima River, Congo. Syntypes: MNHN 1886-0337 to 0338 (1, 1). Type catalog: Bertin 1940:262-263 [ref. 293]. Not the same as Gnathonemus furcidens Pellegrin 1920. •Valid as Mormyrops furcidens Pellegrin 1900 -- (Gosse 1984:95 [ref. 6169]). Current status: Valid as Mormyrops furcidens Pellegrin 1900. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

fuscus, Gnathonemus Pellegrin [J.] 1901:328 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 7 (no. 7); ref. 14887] Congo. Lectotype: MNHN 1890-0009. Paralectotypes: MNHN 1890-0008 (1). Type catalog: Bertin 1940:265 [ref. 293]. Lectotype selected by Boden et al. 1997:1670 [ref. 23218]. •Valid as Marcusenius fuscus (Pellegrin 1901) -- (Gosse 1984:83 [ref. 6169], Boden et al. 1997:1670 [ref. 23218], Kramer & Wink 2013:8 [2334] [ref. 32824], Decru et al. 2019:233 [ref. 36749]). Current status: Valid as Marcusenius fuscus (Pellegrin 1901). Mormyridae. Distribution: Middle Congo basin, Central Africa. Habitat: freshwater.

gabonensis, Paramormyrops Taverne [L.], Thys van den Audenaerde [D. F. E.] & Heymer [A.] 1977:635, Fig. 1 [Revue de Zoologie Africaine v. 91 (no. 3); ref. 4363] Ivindo River, near M'Passa, Makokou, Gabon. Holotype: MRAC 75-24-P-6. Paratypes: MRAC 75-24-P-7-12 (6), 75-24-P-122 (1), 75-24-P-394-95 (2). •Valid as Paramormyrops gabonensis Taverne, Thys van den Audenaerde & Heymer 1977 -- (Gosse 1984:107 [ref. 6169], Hopkins et al. 2007:301 [ref. 30019], Rich et al. 2017:[13] [ref. 35306], Fermon et al. 2022:124 [ref. 39448]). Current status: Valid as Paramormyrops gabonensis Taverne, Thys van den Audenaerde & Heymer 1977. Mormyridae. Distribution: West Africa: southern Cameroon and Gabon. Habitat: freshwater.

gaillardi, Marcusenius Pellegrin [J.] 1909:242 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 15 (no. 5); ref. 14408] Lake Chad at Bol, Chad. Syntypes: MNHN 1909-0395 to 0398 (3, 3, 3, 5). Type catalog: Bertin 1940:268 [ref. 293] with 14 types. •Synonym of Pollimyrus isidori (Valenciennes 1847) -- (Bigorne in Lévêque et al. 1990:181 [ref. 21589], Bigorne 1991:325 [ref. 20236] with 9 types, Lévèque et al. 1991:139 [ref. 31367]). Current status: Synonym of Pollimyrus isidori (Valenciennes 1847). Mormyridae. Habitat: freshwater.

gambiensis, Gnathonemus Svensson [G. S. O.] 1933:34, Fig. 13 [Kongliga Vetenskaps-Academiens Handlingar, Stockholm v. 12 (no. 3); ref. 16524] Creeks and swamps along Gambia River, western Africa. Syntypes: NRM 11136 (3), 14564-73 (10, 1 per lot), 14584-85 (1, 1), 14599 (1), 17368 (1), 17637 (1), 31362 (1); ZMUU 404 (1). Type catalog: Wallin 1996:61 [ref. 32133]. •Synonym of Marcusenius senegalensis (Steindachner 1870) -- (Gosse 1984:89 [ref. 6169], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Marcusenius senegalensis (Steindachner 1870). Mormyridae. Habitat: freshwater.

geoffroyi, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:240 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River, Egypt. Syntypes: BMNH 1861.9.9.47 (1), 1860.7.29.8 (1); MNHN A-9625 (1). Type catalog: Bertin 1940:269 [ref. 293]. •Synonym of Mormyrus niloticus (Bloch & Schneider 1801) -- (Gosse 1984:104 [ref. 6169]). Current status: Synonym of Mormyrus niloticus (Bloch & Schneider 1801). Mormyridae. Habitat: freshwater.

ghesquierei, Gnathonemus Poll [M.] 1945:45, Fig. 3 [Revue de Zoologie et de Botanique Africaines v. 39 (no. 1); ref. 13133] Busira River, region of Eala, 0°15'S, 18°59'E, Congo River basin, Democratic Republic of Congo. Holotype (unique): MRAC 46288. Type catalog: Derijst 1991:41 [ref. 21528]. •Valid as Marcusenius ghesquierei (Poll 1945) -- (Gosse 1984:83 [ref. 6169], Boden et al. 1997:1679 [ref. 23218], Kramer & Wink 2013:8 [2334] [ref. 32824], Decru et al. 2019:234 [ref. 36749]). Current status: Valid as Marcusenius ghesquierei (Poll 1945). Mormyridae. Distribution: Ruki River drainage, middle Congo Basin, Central Africa. Habitat: freshwater.

gilli, Gnathonemus Boulenger [G. A.] 1904:198, Pl. 7 (fig. 2) [Proceedings of the Zoological Society of London 1904, v. 1 (pt 1) (art. 3); ref. 15111] Assay, southern Nigeria. Holotype (unique): BMNH 1904.1.20.10. •Valid as Marcusenius gilli (Boulenger 1904) -- (Gosse 1984:83 [ref. 6169]). •Synonym of Marcusenius abadii (Boulenger 1901) -- (Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:142 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Marcusenius abadii (Boulenger 1901). Mormyridae. Habitat: freshwater.

gliroides, Mormyrus Vinciguerra [D.] 1897:353 [11] [Annali del Museo Civico di Storia Naturale di Genova (Serie 2) v. 17; ref. 14639] Ganana River at Lugh, Somalia. Holotype (unique): MSNG 17602. On p. 11 of separate. •Valid as Petrocephalus gliroides (Vinciguerra 1897) -- (Gosse 1984:112 [ref. 6169], Kramer et al. 2012:2232 [ref. 32160]). Current status: Valid as Petrocephalus gliroides (Vinciguerra 1897). Mormyridae. Distribution: Somalia. Habitat: freshwater.

goheeni, Mormyrus Fowler [H. W.] 1919:234, Fig. 7 [Proceedings of the United States National Museum v. 56 (no. 2294); ref. 15209] St. Paul River, Liberia. Holotype: USNM 48517. Paratypes: USNM 48514-16 (1, 1, 1), 48518 (1). •Valid as Mormyrus goheeni Fowler 1919 -- (Gosse 1984:100 [ref. 6169], Bigorne in Lévêque et al. 1990:127 [ref. 21589]). •Synonym of Mormyrus tapirus Pappenheim 1905 -- (Paugy et al. 1990:337 [ref. 26477]). Current status: Valid as Mormyrus goheeni Fowler 1919. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

gracilis, Gnathonemus Pellegrin [J.] 1922:221 [Bulletin de la Société Zoologique de France v. 47 (no. 6/7); ref. 15365] Gribingui River, Lake Chad basin, Central African Republic. Holotype: MNHN 1922-0023. Type catalog: Bertin 1940:266 [ref. 293]. •Synonym of Marcusenius senegalensis (Steindachner 1870), but a valid subspecies -- (Gosse 1984:89 [ref. 6169], Lévèque et al. 1991:138 [ref. 31367], Fricke & Kramer 2022:499 [ref. 39495]). Current status: Synonym of Marcusenius senegalensis (Steindachner 1870). Mormyridae. Habitat: freshwater.

gracilis, Marcusenius Kramer [L. B.] 2013:123, Fig. 2E [Marine and Freshwater Behaviour and Physiology v. 46 (no. 2); ref. 32737] Comoé River, Kafolo, Mouches Tsété, 9°356'N, 4°19'W, Ivory Coast. Holotype: ZSM 42204. Paratypes: 16, all at ZSM. Preoccupied by Gnathonemus gracilis Pellegrin 1922 when both taxa are classified in Marcusenius. Replaced by Marcusenius elegans Fricke & Kramer 2022. •Valid as Marcusenius gracilis Kramer 2013 -- (Kramer & Wink 2013:8 [2334] [ref. 32824]). •Synonym of Marcusenius elegans Fricke & Kramer 2022 -- (Fricke & Kramer 2022:499 [ref. 39495]). 2°Homonym. Current status: Synonym of Marcusenius elegans Fricke & Kramer 2022. Mormyridae. Habitat: freshwater.

graeverti, Gnathonemus Steindachner [F.] 1914:536 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 51 (no. 25); ref. 18910] Kiperege, Great Ruaha River, Tanzania. Holotype (unique): NMW missing. Species described in more detail in Steindachner 1915:61 [p. 3 of separate] [ref. 15072]. •Synonym of Marcusenius macrolepidotus (Peters 1852) -- (Gosse 1984:85 [ref. 6169], Seegers 1996:73 [ref. 23725], Kramer et al. 2007:678 [ref. 29168], Kramer & Wink 2013:17 [2334] [ref. 32824]). Current status: Synonym of Marcusenius macrolepidotus (Peters 1852). Mormyridae. Habitat: freshwater.

grahami, Marcusenius Norman [J. R.] 1928:105 [Annals and Magazine of Natural History (Series 10) v. 2 (no. 7) (art. 16); ref. 15865] Near mouth of Kagera River, 0°57'30"S, 31°46'30"E, Lake Victoria [Victoria Nyanza]. Syntypes: BMNH 1928.5.24.7-13 (7). •Valid as Hippopotamyrus grahami (Norman 1928) -- (Gosse 1984:75 [ref. 6169], Seegers et al. 2003:28 [ref. 28087], Kramer & Swartz 2010:2229 [ref. 30915], Akoth et al. 2023:7 [ref. 40069]). •Valid as Cyphomyrus grahami (Norman 1928) -- (Sullivan et al. 2022:187 [ref. 39811]). Current status: Valid as Cyphomyrus grahami (Norman 1928). Mormyridae. Distribution: East Africa: Lake Victoria basin. Habitat: freshwater.

grandisquamis, Mormyrus Peters [W. (C. H.)] 1876:250, Pl. (fig. 3) [Monatsberichte der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1876 (for 27 Apr. 1876); ref. 10019] Ogowe, West Africa. Holotype (unique): ZMB 9331. •Synonym of Marcusenius moorii (Günther 1867) -- (Gosse 1984:87 [ref. 6169], Boden et al. 1997:1672 [ref. 23218]). Current status: Synonym of Marcusenius moorii (Günther 1867). Mormyridae. Habitat: freshwater.

grandoculis, Petrocephalus Boulenger [G. A.] 1920:10, Fig. 1 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 4); ref. 587] Lower Congo River at Kinshasa, Democratic Republic of Congo. Syntypes: BMNH 1919.9.10.16-17 (2); MRAC 7158 (1), 7167 (1). •Valid as Petrocephalus grandoculis Boulenger 1920 -- (Gosse 1984:112 [ref. 6169], Lavoué et al. 2010:35 [ref. 30944], Lavoué 2011:26 [ref. 31401], Kullander & Roberts 2012:366 [ref. 31751], Kramer et al. 2012:2232 [ref. 32160], Lovoué 2012:2166 [ref. 32189]). Current status: Valid as Petrocephalus grandoculis Boulenger 1920. Mormyridae. Distribution: Congo River basin. Habitat: freshwater.

greshoffii, Mormyrus Schilthuis [L.] 1891:90, Pl. 6 (fig. 3) [Tijdschrift der Nederlandsche Dierkundige Vereeniging, Ser. 2 v. 3; ref. 3925] Kinshasa, Stanley Pool, upper Congo River near Brazzaville, Democratic Republic of Congo. Holotype (unique): BMNH 1899.9.6.19. •Valid as Marcusenius greshoffii (Schilthuis 1891) -- (Gosse 1984:83 [ref. 6169] as greshoffi, Kramer & Wink 2013:8 [2334] [ref. 32824], Kiselkewa et al. 2020:[7] 706 [ref. 38315], Munene et al. 2021:20 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Marcusenius greshoffii (Schilthuis 1891). Mormyridae. Distribution: Western-central Africa: Congo River system. Habitat: freshwater.

guentheri, Mormyrus Boulenger [G. A.] 1899:814 [Proceedings of the Zoological Society of London 1898 (pt 4) (art. 4); ref. 17092] West Africa. Holotype (unique): BMNH 1864.7.22.4. •Synonym of Mormyrus hasselquistii Valenciennes 1847, but a valid subspecies -- (Gosse 1984:101 [ref. 6169], Bigorne in Lévêque et al. 1990:131 [ref. 21589]). Current status: Synonym of Mormyrus hasselquistii Valenciennes 1847. Mormyridae. Habitat: freshwater.

guineensis, Petrocephalus bovei Reizer [C.], Mattei [X.] & Chevalier [J.-L.] 1973:691, Fig. [Bulletin de l'Institut Fondamental d'Afrique Noire (Serie A) Sciences Naturelles v. 35 (no. 3); ref. 17327] Senegal River, Senegal. By mistake, listed as Petrocephalus bovei occidentalis instead of guineensis on p. 692. •Synonym of Petrocephalus bovei (Valenciennes 1847), but a valid subspecies as described -- (Gosse 1984:110 [ref. 6169]). •Synonym of Petrocephalus bovei (Valenciennes 1847) -- (Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus bovei (Valenciennes 1847). Mormyridae. Habitat: freshwater.

guttatus, Petrocephalus Fowler [H. W.] 1936:246, Fig. 3 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 88; ref. 1424] 30 kilometers east of Kribi, Cameroon. Holotype: ANSP 65504. Paratypes: ANSP 65505 (1), 65506-09 (4), 65511 (1); MCZ [ex ANSP 65510] (1). Type catalog: Böhlke 1984:128 [ref. 13621]. •Valid, tentatively as Pollimyrus guttatus (Fowler 1936) -- (Lavoué et al. 2010:43 [ref. 30944]). •Valid as Petrocephalus guttatus Fowler 1936 -- (Gosse 1984:112 [ref. 6169], Kramer et al. 2012:2232 [ref. 32160], Kramer et al. 2013:16 [ref. 32002]). Current status: Valid as Petrocephalus guttatus Fowler 1936. Mormyridae. Distribution: West-central Africa. Habitat: freshwater.

habereri, Mormyrus Steindachner [F.] 1912:443 [Anzeiger der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftlichen Klasse v. 49 (no. 23) (for 14 Nov. 1912); ref. 18816] Congo River, southern Cameroon. Syntypes: (2) NMW 55088 (1). Species later illustrated and described in more detail in Steindachner 1913:9, Fig. 2 [ref. 14987]. •Synonym of Mormyrus caballus Boulenger 1898, subspecies bumbanus Boulenger 1909 -- (Gosse 1984:99 [ref. 6169]). Current status: Synonym of Mormyrus caballus Boulenger 1898. Mormyridae. Habitat: freshwater.

harringtoni, Marcusenius Boulenger [G. A.] 1905:457 [Annals and Magazine of Natural History (Series 7) v. 15 (no. 89) (art. 58); ref. 17095] Baro River, White Nile River basin, Sudan [Ethiopia]. Holotype (unique): BMNH 1905.10.16.15. •Valid as Hippopotamyrus harringtoni (Boulenger 1905) -- (Gosse 1984:75 [ref. 6169], Kramer & Swartz 2010:2229 [ref. 30915]). •Synonym of Hippopotamyrus pictus (Marcusen 1864) -- (Sullivan et al. 2022:186 [ref. 39811]). Current status: Synonym of Hippopotamyrus pictus (Marcusen 1864). Mormyridae. Habitat: freshwater.

hasselquist, Mormyrus Lacepède [B. G. E.] 1803:622 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Nile River, Egypt. Based on the style in Lacepède p. 622 this name is Latinized and predates Mormyrus hasselquistii Valenciennes 1847 as used in the current literature; current usage would suggest continuing to retain authorship as Valenciennes 1847. Both names were based on Geoffroy St. Hilaire and caschive of Hasselquist 1757:398 [ref. 30181], the latter a rejected work (ICZN Opinion 57), but hasselquistii also involved specimens and can stand on its own. •Synonym of Mormyrus caschive Linnaeus 1758. Current status: Synonym of Mormyrus caschive Linnaeus 1758. Mormyridae. Habitat: freshwater.

hasselquistii, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:253 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River, Egypt. Lectotype: MNHN A-9619. Paralectotypes: MNHN 0000-4387 (3). Type catalog: Bertin 1940:268-269 [ref. 293] with holotype (MNHN A.9619) and paratypes. See account of Mormyrus hasselquist Lacepède 1803. Lectotype selected by Eschmeyer 1998:710 [ref. 23416]. •Valid as Mormyrus hasselquistii Valenciennes 1847 -- (Gosse 1984:100 [ref. 6169] with holotype and paratypes, Lévêque et al. 1989:115 [ref. 26480] dated 1846, Bigorne in Lévêque et al. 1990:131 [ref. 21589], Dankwa et al. 1999:14 [ref. 28023], Kramer 2013:6 [ref. 32485], Neumann et al. 2016:303 [ref. 35036], Moritz et al. 2019:142 [ref. 36792]). Current status: Valid as Mormyrus hasselquistii Valenciennes 1847. Mormyridae. Distribution: Africa. Habitat: freshwater.

haullevillii, Petrocephalus Boulenger [G. A.] 1912:5, Pl. 17 (fig. 1) [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 3); ref. 581] Chiloanga River at Mayili, Luali River at Lundo and in Luculla River, lower Congo. Syntypes: ANSP 38586-88 (3) Luculla River at Chiloango; BMNH 1912.4.1.181-183 (3) Chiloango River, 1912.4.1.184-185 (2) Luali River at Lundo, 1912.4.1.186-187 (2) Luculla River at Chiloango; MRAC 1496-1501 (1 ea.); ZMB 18795 (1). Type catalog: Böhlke 1984:128 [ref. 13621]. •Synonym of Petrocephalus catostoma (Günther 1866), but a valid subspecies -- (Gosse 1984:111 [ref. 6169] as haullevillei, Lavoué et al. 2010:44 [ref. 30944]). •Valid as Petrocephalus haullevillii Boulenger 1912 -- (Kramer et al. 2012:2232, 2236 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Fermon et al. 2022:127 [ref. 39448] with question). Current status: Valid as Petrocephalus haullevillii Boulenger 1912. Mormyridae. Distribution: Western-central Africa: lower Congo River basin. Habitat: freshwater.

henryi, Isichthys Gill [T. N.] 1863:444 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 14 (no. 9 [2nd]); ref. 1670] Unknown locality, probably Liberia. Holotype (unique): USNM 7448. •Valid as Isichthys henryi Gill 1863 -- (Gosse 1984:79 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:136 [ref. 21589], Paugy et al. 1990:336 [ref. 26477], Poll & Gosse 1995:131 [ref. 24781], Hopkins et al. 2007:265 [ref. 30019], Pezold et al. 2016:102 [ref. 34870], Skelton 2019:226 [ref. 36564], Fermon et al. 2022:123 [ref. 39448]). Current status: Valid as Isichthys henryi Gill 1863. Mormyridae. Distribution: West-central Africa: Sierra Leone south to Congo. Habitat: freshwater.

herse, Mormyrus Lacepède [B. G. E.] 1803:620, 622 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Nile River, Cairo, Egypt. Perhaps not independent of Sonnini de Manoncourt 1799. •Apparently a synonym of Mormyrus anguilloides Linnaeus 1758. •Synonym of Mormyrops anguilloides (Linnaeus 1758). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

herse, Mormyrus Sonnini [C. S.] 1799:286, Pl. 22 (fig. 1) [Voyage dans la Haute et Basse Egypte v. 2; ref. 18738] Egypt. No types known. Original not seen. •Synonym of Mormyrus anguilloides Linnaeus 1758 -- (Gosse 1984:91 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

hildebrandti, Mormyrus Peters [W. (C. H.)] 1882:73 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1882; ref. 18547] Adi River in Ukamba, East Africa. Holotype (unique): ZMB 11899. •Synonym of Mormyrus kannume Forsskål 1775 -- (Gosse 1984:102 [ref. 6169] as hildebrandi). •Valid as Mormyrus hildebrandti Peters 1882 -- (Seegers et al. 2003:29 [ref. 28087]). Current status: Valid as Mormyrus hildebrandti Peters 1882. Mormyridae. Distribution: Eastern Africa: Athi River drainage. Habitat: freshwater.

histrio, Gnathonemus Fowler [H. W.] 1936:250, Fig. 6 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 88; ref. 1424] Fort Sibut, Central African Republic [Ubangi-Shari]. Holotype: ANSP 65524. Paratypes: ANSP 65525-42 (18). Type catalog: Böhlke 1984:128 [ref. 13621]. •Synonym of Gnathonemus brevicaudatus Pellegrin 1919 -- (Gosse 1984:71 [ref. 6169]). •Synonym of Gnathonemus petersii (Günther 1862). Current status: Synonym of Gnathonemus petersii (Günther 1862). Mormyridae. Habitat: freshwater.

hopkinsi, Brienomyrus Taverne [L.] & Thys van den Audenaerde [D. F. E.] 1985:49, Fig. 1 [Revue de Zoologie Africaine v. 99 (no. 1); ref. 17280] Ivindo River, near Makokou, Gabon, western Africa. Holotype: MRAC 84-34-1. Paratypes: MRAC 84-34-2 and 3 (2). •Valid as Paramormyrops hopkinsi (Taverne & Thys van den Audenaerde 1985) -- (Hopkins et al. 2007:297 [ref. 30019], Rich et al. 2017:[13] [ref. 35306], Fermon et al. 2022:125 [ref. 39448]). Current status: Valid as Paramormyrops hopkinsi (Taverne & Thys van den Audenaerde 1985). Mormyridae. Distribution: West Africa: southern Cameroon and Gabon. Habitat: freshwater.

humilior, Stomatorhinus Boulenger [G. A.] 1899:70, Pl. 31 (fig. 4) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Ibali, Lake Leopold II; Coquilhatville, Upper Congo. Syntypes: BMNH 1899.9.26.37 (1) Coquilhatville; MRAC 636 (1) Coquilhatville, 637 (1) Ibali. •Valid as Stomatorhinus humilior Boulenger 1899 -- (Gosse 1984:121 [ref. 6169], Sullivan & Hopkins 2004:13 [ref. 28082]). Current status: Valid as Stomatorhinus humilior Boulenger 1899. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

hutereaui, Marcusenius Boulenger [G. A.] 1913:155 [Revue de Zoologie Africaine v. 2 (fasc. 2); ref. 14944] Uelé, Upper Congo River at Dungu, Democratic Republic of Congo. Holotype (unique): MRAC 1805. •Valid, but generic placement uncertain -- (Lavoué et al. 2010:43 [ref. 30944]). •Valid as Petrocephalus hutereaui (Boulenger 1913) -- (Gosse 1984:112 [ref. 6169], Kramer et al. 2012:2232 [ref. 32160], Lavoué 2012:2167 [ref. 32189]). Current status: Valid as Petrocephalus hutereaui (Boulenger 1913). Mormyridae. Distribution: Upper Congo River. Habitat: freshwater.

ibis, Gnathonemus Boulenger [G. A.] 1902:25, Pl. 7 (fig. 4) [Annales du Musee du Congo (Ser. Zoologie) v. 2 (fasc. 2); ref. 562] Ubangi River at Banzyville, Democratic Republic of Congo, about 4°18'N, 21°11'E. Syntypes: BMNH 1901.12.26.7 (1), MRAC 1242 (849) (1). •Synonym of Campylomormyrus numenius (Boulenger 1898) -- (Gosse 1984:68 [ref. 6169]). Current status: Synonym of Campylomormyrus numenius (Boulenger 1898). Mormyridae. Habitat: freshwater.

intermedius, Marcusenius Pellegrin [J.] 1924:2 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Kasaï River at Kabambaie, 5°45'S, 20°49'E, Democratic Republic of Congo. Holotype (unique): MRAC 15164. •Valid as Marcusenius intermedius Pellegrin 1924 -- (Gosse 1984:83 [ref. 6169], Boden et al. 1997:1670 [ref. 23218], Kramer & Wink 2013:8 [2334] [ref. 32824], Kisekelwa et al. 2016:350 [ref. 34365], Decru et al. 2019:234 [ref. 36749], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Marcusenius intermedius Pellegrin 1924. Mormyridae. Distribution: Central Africa: middle Congo River basin. Habitat: freshwater.

intermedius, Mormyrops Vinciguerra [D.] 1928:7 [3] [Annali del Museo Civico di Storia Naturale `Giacomo Doria' v. 53; ref. 15879] Rubi River at Buta, Democratic Republic of Congo. Syntypes: MSNG 26452 (2). Type catalog: Tortonese 1961:182 [ref. 10343]. On p. 3 of separate. •Valid as Mormyrops intermedius Vinciguerra 1928 -- (Gosse 1984:95 [ref. 6169]). Current status: Valid as Mormyrops intermedius Vinciguerra 1928. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

iriodes, Mormyrus Roberts [T. R.] & Stewart [D. J.] 1976:268, Pl. 5 (fig. e) [Bulletin of the Museum of Comparative Zoology v. 147 (no. 6); ref. 7388] Lower Congo River, near Inga, Democratic Republic of Congo, 5°31.5'S, 13°37.5'E. Holotype: MCZ 50499. Paratypes: BMNH 1976.5.21.9-10 [ex MCZ 50500] (2 or 4); MCZ 50267 (1), 50354 (4), 50431 (1), 50499 (1), 50500 (orig. 14, now 9), 50569 (2); MRAC 76-17-P-3 [ex MCZ 50500] (1); USNM 216369 [ex MCZ 50500] (2). •Valid as Mormyrus iriodes Roberts & Stewart 1976 -- (Gosse 1984:101 [ref. 6169]). Current status: Valid as Mormyrus iriodes Roberts & Stewart 1976. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

isidori, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:285 [Histoire naturelle des poissons v. 19; ref. 4883] Nile River, Egypt. Syntypes: MNHN A-4209 (1, holotype of authors), ?A-2612 (3). Type catalog: Bertin 1940:267 [ref. 293]. •Valid as Pollimyrus isidori (Valenciennes 1847) -- (Gosse 1984:115 [ref. 6169], Paugy & Bénech 1989:300 [ref. 26478] dated 1846, Bigorne in Lévêque et al. 1990:181 [ref. 21589], Bigorne 1991:314 [ref. 20236], Lévèque et al. 1991:139 [ref. 31367], Dankwa et al. 1999:17 [ref. 28023], Lavoué et al. 2010:43 [ref. 30944], Kramer et al. 2013:16 [ref. 33002], Neumann et al. 2016:303 [ref. 35036], Levin & Golubtsov 2018:72 [ref. 35732]). Current status: Valid as Pollimyrus isidori (Valenciennes 1847). Mormyridae. Distribution: Nile system and West Africa. Habitat: freshwater.

ivindoensis, Stomatorhinus Sullivan [J. P.] & Hopkins [C. D.] 2005:3, Figs. 1-2 [Zootaxa No. 847; ref. 28082] "Bialé Creek", a small tributary of the Ivindo River inside the Ipassa Plateau Reserve near Makokou, 0°32.3'N, 12°49.6'E, Gabon. Holotype: CUMV 85157. Paratypes: AMNH 235053 (1); CUMV 75437 (2), 85465 (32), 86244 (2), 86245 (3)86247 (3); MNHN 2004-1750-59 (10); MRAC 2004-32-P-1-10 (10). Plus non-type material. •Valid as Stomatorhinus ivindoensis Sullivan & Hopkins 2005 -- (Hopkins et al. 2007:269 [ref. 30019], Fermon et al. 2022:126 [ref. 39448]). Current status: Valid as Stomatorhinus ivindoensis Sullivan & Hopkins 2005. Mormyridae. Distribution: West Africa: Ivindo River, tributary of Ogooué River (Gabon). Habitat: freshwater.

jacksoni, Marcusenius Poll [M.] 1967:55, Fig. 14 [Publicações Culturais, Companhia de Diamantes de Angola (DIAMANG), Lisboa No. 75; ref. 3528] Nharicumbi village, 12°S, 21°10'E, Longa River tributary of Luena River, Angola. Holotype (unique): MD 5575. Type catalog: Derijst 1991:55 [ref. 21528]. •Valid as Paramormyrops jacksoni (Poll 1967) -- (Gosse 1984:107 [ref. 6169], Skelton 1993:101 [ref. 24071], Skelton 2001:101 [ref. 27406], Rich et al. 2017:[13] [ref. 35306] probably in Pollimyrus, Skelton 2019:231 [ref. 36564]). Current status: Valid as Paramormyrops jacksoni (Poll 1967). Mormyridae. Distribution: Southern Africa: Angola. Habitat: freshwater.

jae, Mormyrus Boulenger [G. A.] 1914:384 [Annals and Magazine of Natural History (Series 8) v. 14 (no. 83) (art. 28); ref. 14145] Ja River, southern Cameroon. Holotype (unique): BMNH 1920.5.17.4. •Synonym of Mormyrus caballus Boulenger 1898, subspecies bumbanus Boulenger 1909 -- (Gosse 1984:99 [ref. 6169]). Current status: Synonym of Mormyrus caballus Boulenger 1898. Mormyridae. Habitat: freshwater.

joannisii, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:282 [Histoire naturelle des poissons v. 19; ref. 4883] No locality [= Nile River, Egypt]. Holotype (unique): MNHN A-0910. Type catalog: Bertin 1940:263 [ref. 293]. •Synonym of Petrocephalus bane (Lacepède 1803) -- (Gosse 1984:108 [ref. 6169], Kramer et al. 2012:2232 [ref. 32160]). Current status: Synonym of Petrocephalus bane (Lacepède 1803). Mormyridae. Habitat: freshwater.

jubelini, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:252 [Histoire naturelle des poissons v. 19; ref. 4883] Senegal. Holotype (unique): MNHN A-0936. •Synonym of Mormyrus rume Valenciennes 1847 -- (Gosse 1984:105 [ref. 6169], Bigorne in Lévêque et al. 1990:128 [ref. 21589]). Current status: Synonym of Mormyrus rume Valenciennes 1847. Mormyridae. Habitat: freshwater.

kainjii, Marcusenius Lewis [D. S. C.] 1974:14, 49, Fig. 15 [An illustrated key to the fishes of Lake Kainji; ref. 31600] Lake Kainji, artifical lake in lower Niger River, Nigeria, 10°30'N, 4°35'E. Holotype (unique): BMNH 1974.3.25.8. •Uncertain status as Marcusenius kainjii Lewis 1974 -- (Kramer & Wink 2013:8 [2333] [ref. 32824]). Current status: Uncertain as Marcusenius kainjii Lewis 1974. Mormyridae. Distribution: Lake Kainji, Nigeria. Habitat: freshwater.

kaninginii, Marcusenius Kisekelwa [T.], Boden [G.], Snoeks [J.] & Vreven [E. J.] 2016:345, Figs. 5, 7a [Ichthyological Exploration of Freshwaters v. 26 (no. 4); ref. 34365] Lowa River, Walikale, upstream waterfall and Lowa bridge in Walikale city, Lowa River basin, Democratic Republic of Congo, 1°25'53"S, 28°04'27"E. Holotype: MRAC B0-001-P-001. Paratypes: MRAC. Plus additional non-type material. •Valid as Marcusenius kaninginii Kisekelwa, Boden, Snoeks & Vreven 2016 -- (Decru et al. 2019:234 [ref. 36749], Kiselkewa et al. 2020:[7] 706 [ref. 38315]). Current status: Valid as Marcusenius kaninginii Kisekelwa, Boden, Snoeks & Vreven 2016. Mormyridae. Distribution: Central Africa: Lowa River drainage, upper Congo basin (Democratic Republic of Congo). Habitat: freshwater.

kannume, Mormyrus Fabricius [J. C.] in Niebuhr (ex Forsskål) 1775:74, xiv [Descriptiones animalium (Forsskål); ref. 1351] "Damiatae" [Dumyat, Egypt]. No types known. Authorship according to Fricke 2008:14 [ref. 30182]. Spelled kanume by Rüppell 1852:27 [ref. 3846]. •Valid as Mormyrus kannume Forsskål 1775 -- (Gosse 1984:101 [ref. 6169], Seegers et al. 2003:29 [ref. 28087], Seegers 2008:180 [ref. 29830], Neumann et al. 2016:303 [ref. 35036], Akoth et al. 2023:8 [ref. 40069]). •Valid as Mormyrus kannume Fabricius 1775 -- (Fricke 2008:14 [ref. 30182]). Current status: Valid as Mormyrus kannume Fabricius 1775. Mormyridae. Distribution: North Africa and East Africa. Habitat: freshwater.

kapangae, Marcusenius stappersi David [L.] 1935:293 [Revue de Zoologie et de Botanique Africaines v. 27 (no. 2); ref. 13878] Katanga (now Shaba), Democratic Republic of Congo. Holotype: MRAC 39492. •Synonym of Pollimyrus stappersii (Boulenger 1915), but a valid subspecies as described -- (Gosse 1984:120 [ref. 6169]). Current status: Synonym of Pollimyrus stappersii (Boulenger 1915). Mormyridae. Habitat: freshwater.

keatingii, Petrocephalus Boulenger [G. A.] 1901:444 [Annals and Magazine of Natural History (Series 7) v. 8 (no. 47) (art. 55); ref. 557] Fashoda [Kodok], White Nile River, Sudan. Syntypes: (2) BMNH 1907.12.2.253 (1). •Valid as Petrocephalus keatingii Boulenger 1901 -- (Gosse 1984:112 [ref. 6169], Kramer et al. 2012:2233 [ref. 32160], Moritz et al. 2019:143 [ref. 36792]). Current status: Valid as Petrocephalus keatingii Boulenger 1901. Mormyridae. Distribution: Nile River, Africa. Habitat: freshwater.

kingsleyae, Mormyrus Günther [A.] 1896:281, Pl. 15 (fig. A) [Annals and Magazine of Natural History (Series 6) v. 17 (no. 100) (art. 37); ref. 14607] Old Calabar, Nigeria [but locality probably the Ogowe River, Gabon]. Holotype (unique): BMNH 1896.5.5.100. For type locality see Teugels & Hopkins 1998:200 [ref. 23311]. •Valid as Pollimyrus kingsleyae (Günther 1896) -- (Gosse 1984:117 [ref. 6169], Bigorne in Lévêque et al. 1990:178 [ref. 21589], Bigorne 1991:319 [ref. 20236] with subspecies, Lévèque et al. 1991:139 [ref. 31367], Levin & Golubtsov 2018:72 [ref. 35732]). •Valid as Brienomyrus kingsleyae (Günther 1896) -- (Teugels & Hopkins 1998:199 [ref. 23311]). •Valid as Paramormyrops kingsleyae (Günther 1896) -- (Hopkins et al. 2007:303 [ref. 30019], Rich et al. 2017:[13] [ref. 35306], Skelton 2019:226 [ref. 36564], Fermon et al. 2022:125 [ref. 39448], Walsh et al. 2022:[5] [ref. 39281]). Current status: Valid as Paramormyrops kingsleyae (Günther 1896). Mormyridae. Distribution: Western-central Africa: southern Cameroon, Gabon, Republic of Congo, and Angola. Habitat: freshwater.

knoepffleri, Boulengeromyrus Taverne [L.] & Géry [J.] 1968:100, Fig. 1 [Revue de Zoologie et de Botanique Africaines v. 78 (pts 1-2); ref. 4360] Loa-Loa rapids, Ivindo River, 0°27'N, 12°48'E, downstream from Makokou, Gabon. Holotype: MRAC 162201. Paratypes: BMNH 1972.12.18.9 (1); MNHN 1987-0884 (3), 1987-0885 (2); MRAC 80-15-P-1-2 (2), 80-15-P-3-5 (1, 1, 1). •Valid as Boulengeromyrus knoepffleri Taverne & Géry 1968 -- (Gosse 1984:63 [ref. 6169], Poll & Gosse 1995:135 [ref. 24781], Hopkins et al. 2007:315 [ref. 30019], Fermon et al. 2022:122 [ref. 39448]). Current status: Valid as Boulengeromyrus knoepffleri Taverne & Géry 1968. Mormyridae. Distribution: Western-central Africa: Gabon and Cameroon. Habitat: freshwater.

krameri, Marcusenius Maake [P. A.], Gon [O.] & Swartz [E. R.] 2014:469, Fig. 2b [Zootaxa 3780 (no. 3); ref. 33223] Mogalakwena River (also known as the Nyl), Modimolle town, Pretoria Street, above a drift, Limpopo River system, South Africa, 24°42'04.2"S, 28°24'40.8"E. Holotype: SAIAB 188295. Paratypes: BMNH 2013.9.4.72-73 (2); MRAC B3-16-P-1-2 (2); SAIAB 188290 (20), 188294 (11), 191224 (5); USNM 410774 (2). Plus non-type specimens. •Valid as Marcusenius krameri Maake, Gon & Swartz 2014 -- (Kramer et al. 2016:7 [ref. 34331], Kramer et al. 2016:368 [ref. 34938]). Current status: Valid as Marcusenius krameri Maake, Gon & Swartz 2014. Mormyridae. Distribution: Limpopo River and several of its tributaries, ranging from the Matlabas River in the west to the Olifants River in the east, South Africa. Habitat: freshwater.

kununguensis, Stomatorhinus Poll [M.] 1945:40, Fig. 2 [Revue de Zoologie et de Botanique Africaines v. 39 (no. 1); ref. 13133] Kunungu, Congo River basin, Democratic Republic of Congo. Syntypes: (11) MRAC 21573-74 (2); 38627 (1), 44589 (1), 44593-94 (2), 48785-86 (2), 57221-22 (2), 62324 (1). Type catalog: Derijst 1991:66 [ref. 21528]. •Valid as Stomatorhinus kununguensis Poll 1945 -- (Gosse 1984:121 [ref. 6169], Sullivan & Hopkins 2004:13 [ref. 28082], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Stomatorhinus kununguensis Poll 1945. Mormyridae. Distribution: Central Africa: central and upper Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

kutuensis, Gnathonemus Boulenger [G. A.] 1899:74, Pl. 33 (fig. 5) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Lake Leopold II, Kutu Island, 2°44'S, 18°08'E, Zaire. Holotype (unique): MRAC 664. •Valid as Marcusenius kutuensis (Boulenger 1899) -- (Gosse 1984:83 [ref. 6169], Boden et al. 1997:1671 [ref. 23218], Kramer & Wink 2013:8 [2334] [ref. 32824], Decru et al. 2019:234 [ref. 36749], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Marcusenius kutuensis (Boulenger 1899). Mormyridae. Distribution: Western-central Africa: Middle Congo River basin. Habitat: freshwater.

labiatus, Mormyrus Geoffroy St. Hilaire [E.] 1809:[267], Pl. 7 (fig. 1) [Poissons du Nil v. 1 (part 1); ref. 4182] Nile River, Egypt. Syntypes: MNHN A-9616 (1), A-9617 (1). Type catalog: Bertin 1940:264-265 [ref. 293]. Description based on a specimen of about 32 cm that is apparently lost. Two other specimens were mentioned, one of 270 mm (A.9616) and of 90 mm (A.9617); they are regarded as syntypes. The page number is from a different edition. •Synonym of Marcusenius cyprinoides (Linnaeus 1758) -- (Gosse 1984:81 [ref. 6169] with MNHN A.9616 as holotype). Current status: Synonym of Marcusenius cyprinoides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

lacerda, Mormyrus Castelnau [F. L.] 1861:61 [Mémoire sur les poissons de l'Afrique australe; ref. 767] Lake Ngami, Botswana, southern Africa. No types known. •Valid as Mormyrus lacerda Castelnau 1861 -- (Gosse 1984:102 [ref. 6169], Skelton 1993:95 [ref. 24071], van der Bank & Kramer 1996:285 [ref. 29516], Skelton 2001:95 [ref. 27406], Kramer & van der Bank 2011:2670 [ref. 31546], Marshall 2011:43 [ref. 31755], Kramer 2013:5 [ref. 32485], Kramer et al. 2016:unnumbered p. [ref. 34331], Bruton et al. 2018:34 [ref. 36373], Skelton 2019:231 [ref. 36564]). Current status: Valid as Mormyrus lacerda Castelnau 1861. Mormyridae. Distribution: Southern Africa: South Africa to Namibia, Angola, Zambia and Botswana. Habitat: freshwater.

lambouri, Gnathonemus Pellegrin [J.] 1904:439 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 10 (no. 7); ref. 15196] Alima River, Diélé, Upper Congo, about 1°41'S, 14°45'E. Lectotype: MNHN 1886-0319. Paralectotypes: MNHN 1886-0324 (1). Type catalog: Bertin 1940:265 [ref. 293], Poll 1948:76 [ref. 31166]. Bertin lists 2 paratypes and Gosse lists only a holotype (1886-319), and the original lists 2 specimens; MNHN 1886-319 is designated lectotype by Boden et al. 1997:1674 [ref. 23218]. •Valid as Marcusenius lambouri (Pellegrin 1904) -- (Gosse 1984:84 [ref. 6169], Mambo Baba et al. 2020:[7] [ref. 37385]). •Synonym of Marcusenius moorii (Günther 1867) -- (Boden et al. 1997:1672 [ref. 23218]). Current status: Valid as Marcusenius lambouri (Pellegrin 1904). Mormyridae. Distribution: Middle Congo basin. Habitat: freshwater.

leo, Petrocephalus Lavoué [S.] 2016:322, Figs. 2 (upper & middle), 3 [Zootaxa 4121 (no. 3); ref. 34484] Basse-Kotto, Kotto River at Mingala, Kotto-Oubangui province, Central African Republic (5.10°N, 21.82°E). Holotype: CUMV 95314. Paratypes: AMNH, CUMV, MRAC. •Valid as Petrocephalus leo Lavoué 2016. Current status: Valid as Petrocephalus leo Lavoué 2016. Mormyridae. Distribution: Kotto River, Oubangui River basin, Central African Republic. Habitat: freshwater.

leopoldianus, Gnathonemus Boulenger [G. A.] 1899:72, Pl. 33 (fig. 3) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Ibali Island, Lake Leopold II, Congo. Syntypes: BMNH 1899.9.26.41 (1); MRAC 661 (1), 662 (1). •Valid as Marcusenius leopoldianus (Boulenger 1899) -- (Gosse 1984:84 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Marcusenius leopoldianus (Boulenger 1899). Mormyridae. Distribution: Western-central Africa: Congo River system. Habitat: freshwater.

lepturus, Mormyrus Günther [A.] 1872:670, Pl. 69 (fig. B) [Proceedings of the Zoological Society of London 1871 (pt 3) (art. 1) (for 21 Nov. 1871); ref. 1997] Gabon. Syntypes: BMNH 1872.1.27.4-5 (2). •Synonym of Marcusenius moorii (Günther 1867) -- (Gosse 1984:87 [ref. 6169], Boden et al. 1997:1672 [ref. 23218]). Current status: Synonym of Marcusenius moorii (Günther 1867). Mormyridae. Habitat: freshwater.

levequei, Petrocephalus Bigorne [R.] & Paugy [D.] in Lévêque, Paugy & Teugels 1990:175, Fig. 15.48 [Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Collection Faune tropicale no. XXVIII. v. 1; ref. 21589] Rokel at Bumbuna, Sierra Leone. Holotype: MNHN 1990-0136. Paratypes: MNHN 1990-0949 (7), 1989-1852 (9). Additional material: MNHN, MRAC. First author is R. Bigorne. Appeared first as above, then in Bigorne & Paugy 1991:25, Fig. 17 [ref. 20122]. •Valid as Petrocephalus levequei Bigorne & Paugy 1990 -- (Kramer et al. 2012:2233 [ref. 32160]). Current status: Valid as Petrocephalus levequei Bigorne & Paugy 1990. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

lhuysi, Mormyrus Steindachner [F.] 1870:553 [21], Pl. 4 (fig. 1) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 61 (1. Abth.); ref. 18768] Senegal, western Africa. Holotype (unique): NMW 55100. Original as Lhuysi. On p. 21 of separate. Misspelled ihuysi and lhuysii in literature. •Valid as Pollimyrus lhuysi (Steindachner 1870) -- (Gosse 1984:117 [ref. 6169]). •Synonym of Brienomyrus niger (Günther 1866) -- (Bigorne in Lévêque et al. 1990:161 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). •Synonym of Brevimyrus niger (Günther 1866) -- based on current placement of niger. Current status: Synonym of Brevimyrus niger (Günther 1866). Mormyridae. Habitat: freshwater.

liberiensis, Mormyrus Steindachner [F.] 1894:67 [Notes from the Leyden Museum v. 16 (nos 1-2, art. 1); ref. 4237] Sulymah River and Junk River; Fisherman Lake, Buluma, Liberia. Syntypes: (many) BMNH 1895.5.8.12-14 (3); NMW 55095-99 (1, 2, 1, 1, 1); RMNH 5262 (now 7), 5263 (1), 5265 (2). •Synonym of Brienomyrus brachyistius (Gill 1862) -- (Gosse 1984:64 [ref. 6169], Paugy et al. 1990:336 [ref. 26477], Bigorne in Lévêque et al. 1990:162 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Brienomyrus brachyistius (Gill 1862). Mormyridae. Habitat: freshwater.

lineatus, Mormyrus Vaillant [L. L.] in Rivière 1886:17 [La Revue scientifique: revue hebdomadaire illustrée (Revue rose), éd. par Jean Duhem. v. 38 [series 3: v. 23 (no. 1)]; ref. 17852] Not available, no distinguishing features provided; from Africa. Nomen Nudum. Mormyridae.

lineolatus, Mormyrops Boulenger [G. A.] 1898:5, Pl. 2 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Holotype (unique): MRAC 143. •Valid as Mormyrops lineolatus Boulenger 1898 -- (Gosse 1984:95 [ref. 6169], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Mormyrops lineolatus Boulenger 1898. Mormyridae. Distribution: Central Africa: central and upper Congo River basin. Habitat: freshwater.

livingstonii, Gnathonemus Boulenger [G. A.] 1899:803 [Proceedings of the Zoological Society of London 1898 (pt 4) (art. 4); ref. 17092] Ruvuma River, Mozambique. Holotype (unique): BMNH 1864.7.9.30. •Valid as Marcusenius livingstonii (Boulenger 1899) -- (Gosse 1984:84 [ref. 6169], Snoeks 2004:20 [ref. 28111], Kramer & Wink 2013:8 [2334] [ref. 32824], Maake et al. 2014:465 [ref. 33223]). Current status: Valid as Marcusenius livingstonii (Boulenger 1899). Mormyridae. Distribution: Mozambique: Ruvuma River. Habitat: freshwater.

longianalis, Marcusenius Boulenger [G. A.] 1901:5, Pl. 3 (fig. 1) [Proceedings of the Zoological Society of London 1901, v. 1 (pt 1) (art. 1); ref. 559] Junction of Ethiop River and Jamieson River, Niger Delta. Syntypes: BMNH 1901.1.28.5-6 (2). •Valid as Brienomyrus longianalis (Boulenger 1901) -- (Gosse 1984:64 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Paugy et al. 1990:336 [ref. 26477], Bigorne in Lévêque et al. 1990:164 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Hopkins et al. 2007:303 [ref. 30019]). Current status: Valid as Brienomyrus longianalis (Boulenger 1901). Mormyridae. Distribution: West-central Africa: Cameroon. Habitat: freshwater.

longianalis, Petrocephalus Kramer [L. B.], Bills [I. R.], Skelton [P. H.] & Wink [M.] 2012:2237, Fig. 2 (no. 12) [Journal of Natural History v. 46 (no. 35-36); ref. 32160] Luapula River system, Luongo River basin, Lufubu River, Lufubu River falls below bridge at Chipili on Mensa-Mununga road, 10.7297°S, 29.0936°E, Zambia Province, Zambia, elevation about 1200 meters. Holotype: SAIAB 76758. Paratypes: SAIAB 186060 (48). Plus non-type specimens on p. 2190. •Valid as Petrocephalus longianalis Kramer, Bills, Skelton & Wink 2012. Current status: Valid as Petrocephalus longianalis Kramer, Bills, Skelton & Wink 2012. Mormyridae. Distribution: Lufubu River, Zambia. Habitat: freshwater.

longibarbis, Mormyrus Hilgendorf [F. M.] 1888:78 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1888; ref. 2168] Lake Ukerewe, Victoria Nyanaza [Kagehi or Kageyi, east of Kayenze, southern shore of Lake Victoria, Mwanza district, Tanzania, 2°23'S, 33°06'E]. Holotype (unique): ZMB 12748. Type catalog: Seegers 2008:180 [ref. 29830] with more detailed locality. •Valid as Gnathonemus longibarbis (Hilgendorf 1888) -- (Gosse 1984:71 [ref. 6169], De Vos et al. 2001:129, 131 [ref. 26059], Seegers et al. 2003:28 [ref. 28087], Seegers 2008:180 [ref. 29830], Akoth et al. 2023:7 [ref. 40069], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Gnathonemus longibarbis (Hilgendorf 1888). Mormyridae. Distribution: Eastern Africa: Lake Victoria and Lake Tanganyika basins (Burundi, Congo, Kenya, Tanzania, Uganda). Habitat: freshwater.

longicapitis, Petrocephalus Kramer [L. B.], Bills [I. R.], Skelton [P. H.] & Wink [M.] 2012:2238, Fig. 2 (no. 7) [Journal of Natural History v. 46 (no. 35-36); ref. 32160] Upper Zambezi River at Katima Mulilo, ca. 17°29'30"S, 24°16'18"E, East Caprivi, Namibia. Holotype: SAIAB 85016. Paratypes: SAIAB 85911 (2), 85917 (3), 85918 (3); SMF 28265 (27). Plus non-types listed on p. 2191. •Valid as Petrocephalus longicapitis Kramer, Bills, Skelton & Wink 2012 -- (Bruton et al. 2018:35 [ref. 36373], Skelton 2019:230 [ref. 36564]). Current status: Valid as Petrocephalus longicapitis Kramer, Bills, Skelton & Wink 2012. Mormyridae. Distribution: Zambezi River, Namibia and Lumwana River, Zambia, south to Okavango Delta, Angola and Botswana. Habitat: freshwater.

longicaudatus, Brienomyrus Taverne [L.], Thys van den Audenaerde [D. F. E.], Heymer [A.] & Géry [J.] 1977:200, Fig. 1 [Revue de Zoologie Africaine v. 91 (no. 1); ref. 17898] Ivindo River, near M'Passa, Makokou, Gabon. Holotype: MRAC 75-24-P-290. Paratypes: MNHN 1987-0886 (2), MRAC 75-24-P-291-293 (3). •Valid as Brienomyrus longicaudatus Taverne, Thys van den Audenaerde, Heymer & Géry 1977 -- (Gosse 1984:64 [ref. 6169]). •Valid as Paramormyrops longicaudatus (Taverne, Thys van den Audenaerde, Heymer & Géry 1977) -- (Hopkins et al. 2007:297 [ref. 30019], Rich et al. 2017:[13] [ref. 35306], Fermon et al. 2022:125 [ref. 39448]). Current status: Valid as Paramormyrops longicaudatus (Taverne, Thys van den Audenaerde, Heymer & Géry 1977). Mormyridae. Distribution: Western-central Africa: Gabon. Habitat: freshwater.

longiceps, Mormyrops Günther [A.] 1867:117 [8] [Annals and Magazine of Natural History (Series 3) v. 20 (no. 116) (art. 15); ref. 1989] Bossumprah River, Ghana. Holotype (unique): WML [Liverpool Mus.] (whereabouts unknown). On p. 8 of separate. •Valid as Mormyrops longiceps Günther 1867 -- (Gosse 1984:95 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758) -- (Bigorne 1987:146 [ref. 20556], Lévêque et al. 1989:114 [ref. 26480], Paugy & Bénech 1989:299 [ref. 26478], Bigorne in Lévêque et al. 1990:157 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Kramer 2013:8 [ref. 32882]). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

longilateralis, Hippopotamyrus Kramer [L. B.] & Swartz [E. R.] 2010:2231, Fig. 1A [Journal of Natural History v. 44 (no. 36); ref. 30915] Above Epupa Falls, Cunene River, on the Namibian/Angolan border, 17°00'07"S, 013°14'57"E, elevation about 600 meters. Holotype: SAIAB 78793. Paratypes: SAIAB 79502 (1), 79503 (1), 78778 (1), 78779 (5), 78783 (2), 118976 [ex 78793] (2); ZSM 38561-67 (2, 3, 1, 4, 1, 1, 1). Plus additional non-type material. Type catalog: Neumann 2011:270 [ref. 31652]. •Valid as Hippopotamyrus longilateralis Kramer & Swartz 2010 -- (Skelton 2019:230 [ref. 36564], Mutizwa et al. 2021:[3] [ref. 38598]). •Valid as Heteromormyrus longilateralis (Kramer & Swartz 2010) -- (Sullivan et al. 2022:178 [ref. 39811]). Current status: Valid as Heteromormyrus longilateralis (Kramer & Swartz 2010). Mormyridae. Distribution: Southern Africa: upper Kunene River drainage, in the Namibian/Angolan border area. Habitat: freshwater.

longipinnis, Mormyrus Rüppell [W. P. E. S.] 1832:7, Pl. 1 (fig. 2) [Fortsetzung der Beschreibung und Abbildung meherer neuer Fische; ref. 18643] Lower Nile River, Egypt. Syntypes: BMNH 1860.11.9.133-136 (4); SMF 643 (1), 2673 (1, dry), 17515 (2). •Synonym of Mormyrus caschive Linnaeus 1758 -- (Gosse 1984:99 [ref. 6169]). Current status: Synonym of Mormyrus caschive Linnaeus 1758. Mormyridae. Habitat: freshwater.

longipinnis, Scrophicephalus Swainson [W.] 1838:309, Fig. 70 [The natural history and classification of fishes, amphibians, & reptiles, or monocardian animals. v. 1; ref. 4302] Not an original description but is Mormyrus longipinnis Rüppell 1832, but unclear from Swainson's text (figure copied). Mormyridae.

longirostris, Mormyrus Peters [W. (C. H.)] 1852:275 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1852; ref. 18539] Mozambique. Lectotype: ZMB 3672. Paralectotypes: ZMB 3671 (1), 32044 (1). Also in Peters 1868:83, Pl. 16 (fig. 2) [ref. 3440]. Lectotype selected by Seegers 1996:79 [ref. 23725]. •Valid as Mormyrus longirostris Peters 1852 -- (Gosse 1984:103 [ref. 6169], Skelton 1993:95 [ref. 24071], Seegers 1996:78 [ref. 23725], Skelton 2001:95 [ref. 27406], De Vos et al. 2001:131 [ref. 26059] as longirostrus, Snoeks 2004:20 [ref. 28111], Kramer & van der Bank 2011:2670 [ref. 31546], Marshall 2011:45 [ref. 31755], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Mormyrus longirostris Peters 1852. Mormyridae. Distribution: Africa: southern and eastern Africa. Habitat: freshwater.

longulus, Gnathonemus moorii David [L.] & Poll [M.] 1937:203, Fig. 6 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 3 (fasc. 5); ref. 1043] Bumba, Congo River basin, Democratic Republic of Congo. Holotype: MRAC 31710. Paratypes: MRAC 21571 (1). Type catalog: Derijst 1991:41 [ref. 21528]. •Synonym of Marcusenius lambouri (Pellegrin 1904) -- (Gosse 1984:84 [ref. 6169], Mambo Baba et al. 2020:[7] [ref. 37385]). •Synonym of Marcusenius moorii (Günther 1867) -- (Boden et al. 1997:1672 [ref. 23218]). Current status: Synonym of Marcusenius lambouri (Pellegrin 1904). Mormyridae. Habitat: freshwater.

lualabae, Mormyrus caballus Reizer [C.] 1964:22, Pl. 2 (fig. 1) [Annales, Musée Royal de l'Afrique Centrale, Tervuren, Série in 8o, Sciences Zoologiques No. 133; ref. 9246] Kindu, Lualaba-Upemba, Central Africa. Holotype: MRAC 70080. Paratypes: MRAC 22087 (1), 67474 (1), 70076 (1), 70078 (1). •Synonym of Mormyrus caballus Boulenger 1898, but a valid subspecies as described -- (Gosse 1984:99 [ref. 6169]). Current status: Synonym of Mormyrus caballus Boulenger 1898. Mormyridae. Habitat: freshwater.

lualabaensis, Gnathonemus rhynchophorus David [L.] & Poll [M.] 1937:205, Fig. 8 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 3 (fasc. 5); ref. 1043] Kabelwe, 8°44'S, 26°56'E, Democratic Republic of Congo. Holotype (unique): MRAC 22095. Type catalog: Derijst 1991:42 [ref. 21528]. •Synonym of Campylomormyrus rhynchophorus (Boulenger 1898) -- (Gosse 1984:69 [ref. 6169]). Current status: Synonym of Campylomormyrus rhynchophorus (Boulenger 1898). Mormyridae. Habitat: freshwater.

luapulaensis, Gnathonemus rhynchophorus David [L.] & Poll [M.] 1937:205, Fig. 7 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 3 (fasc. 5); ref. 1043] Kabunda, 1°15'S, 29°30'E, Congo River basin, Democratic Republic of Congo. Holotype (unique): MRAC 45889. Type catalog: Derijst 1991:42 [ref. 21528]. •Valid as Campylomormyrus luapulaensis (David & Poll 1937) -- (Gosse 1984:67 [ref. 6169], Skelton 2019:231 [ref. 36564]). Current status: Valid as Campylomormyrus luapulaensis (David & Poll 1937). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

lucombesi, Marcusenius Maake [P. A.], Gon [O.] & Swartz [E. R.] 2014:471, Fig. 2d [Zootaxa 3780 (no. 3); ref. 33223] Lucombe River, Lucombe stream pools, Nyati Road, Niassa Game Reserve, Ruvuma River system, Mozambique, 12°5'15"S, 37°33'38"E. Holotype: SAIAB 73884. Paratypes: BMNH 2013.9.4.75 (1); MRAC, B3-16-P-4 (1); SAIAB 73790 (4), 73816 (1), 73885 (1), 73886 (2), 191226 (6). •Valid as Marcusenius lucombesi Maake, Gon & Swartz 2014 -- (Kramer et al. 2016:7 [ref. 34331]). Current status: Valid as Marcusenius lucombesi Maake, Gon & Swartz 2014. Mormyridae. Distribution: Lucombe River and its small tributary streams, Nakajambo River, both tributaries of the Ruvuma River system within the Niassa Game Reserve, Mozambique. Habitat: freshwater.

lufirae, Cyphomyrus Mulelenu [C. M.], Manda [B. K.], Decru [E.], Manda [A. C.] & Vreven [E. J.] 2020:1128, Figs. 7, 8a [Journal of Fish Biology v. 96 (no. 5); ref. 37340] Dikulwe River (Bunkeya-Kyubo), middle Lufira River, Upper Lualaba, Lualaba Province, Democratic Republic of Congo, 09°57'18.6"S, 026°56'47.1"E, elevation 888 meters. Holotype: MRAC 2015-05-P-145. Paratypes: AMNH, BMNH 2019.9.23.1 (1), MRAC, ZSM. Plus additional non-type material. •Valid as Cyphomyrus lufirae Mulelenu, Manda, Decru, Manda & Vreven 2020 -- (Abwe et al. 2023:28 [ref. 39992]). Current status: Valid as Cyphomyrus lufirae Mulelenu, Manda, Decru, Manda & Vreven 2020. Mormyridae. Distribution: Southern-central Africa: lower and middle Lufira River basin, upper Congo River system (Democratic Republic of Congo). Habitat: freshwater.

macrocephalus, Mormyrus Worthington [E. B.] 1929:430, Fig. 2 [Proceedings of the Zoological Society of London 1929 (Pt 3, no. 29) (art. 34); ref. 16064] Lakes Kwania and Kioga; Victoria Nile, Uganda. Syntypes: (17) BMNH 1929.1.24.24-29. •Valid as Mormyrus macrocephalus Worthington 1929 -- (Gosse 1984:103 [ref. 6169], Akoth et al. 2023:8 [ref. 40069]). Current status: Valid as Mormyrus macrocephalus Worthington 1929. Mormyridae. Distribution: East Africa. Habitat: freshwater.

macrodon, Myomyrus Boulenger [G. A.] 1898:10, Pl. 7 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Matadi, Lower Congo River, Democratic Republic of Congo. Syntypes: BMNH 1898.11.12.24 (1), MRAC 45 (1). •Valid as Myomyrus macrodon Boulenger 1898 -- (Gosse 1984:106 [ref. 6169], Poll & Gosse 1995:135 [ref. 24781]). Current status: Valid as Myomyrus macrodon Boulenger 1898. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

macrolepidotus, Mormyrus Peters [W. (C. H.)] 1852:275 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1852; ref. 18539] Tette, Mozambique. Lectotype: ZMB 3678. Paralectotypes: ?ZMB 3630 (1), ZMB 3677 (1), 6730 (1), 32043 (3). Also in Peters 1868:79, Pl. 15 (fig. 1) [ref. 3440]. Lectotype selected by Seegers 1996:73 [ref. 23725]. •Valid as Marcusenius macrolepidotus (Peters 1852) -- (Gosse 1984:84 [ref. 6169], Skelton 1993:98 [ref. 24071], Seegers 1996:74 [ref. 23725], van der Bank & Kramer 1996:285 [ref. 29516], Skelton 2001:98 [ref. 27406], De Vos et al. 2001:131 [ref. 26059] as a valid subspecies, Seegers et al. 2003:28 [ref. 28087] as aff. macrolepidotus, Snoeks 2004:20 [ref. 28111] as a valid subspecies, Kramer et al. 2007:677 [ref. 29168] with subspecies, Kramer & van der Bank 2011:2670 [ref. 31546], Marshall 2011:47 [ref. 31755], Kullander & Roberts 2012:368 [ref. 31751], Kramer & Wink 2013:17 [2328] [ref. 32824], Maake et al. 2014:466 [ref. 33223], Kramer et al. 2016:8 [ref. 34331], Abwe et al. 2023:28 [ref. 39992], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Marcusenius macrolepidotus (Peters 1852). Mormyridae. Distribution: Central and southern Africa. Habitat: freshwater.

macrophthalmus, Gnathonemus Pellegrin [J.] 1924:6 [Revue de Zoologie Africaine v. 12 (no. 1); ref. 17937] Kasaï River at Tshikapa, Democratic Republic of Congo. Holotype: MRAC 15118. •Valid as Marcusenius macrophthalmus (Pellegrin 1924) -- (Gosse 1984:86 [ref. 6169], Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius macrophthalmus (Pellegrin 1924). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

macrophthalmus, Mormyrus Günther [A.] 1866:217 [Catalogue of the fishes in the British Museum v. 6; ref. 1983] Niger, western Africa. Holotype (unique): BMNH 1863.7.30.4. •Valid as Mormyrus macrophthalmus Günther 1866 -- (Gosse 1984:104 [ref. 6169], Bigorne in Lévêque et al. 1990:130 [ref. 21589], Dankwa et al. 1999:14 [ref. 28023], Hopkins et al. 2007:261 [ref. 30019]). Current status: Valid as Mormyrus macrophthalmus Günther 1866. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

macrops, Marcusenius Boulenger [G. A.] 1909:84, Fig. 67 [Catalogue of the fresh-water fishes of Africa v. 1; ref. 14364] Upper Congo. Holotype (unique): BMNH 1899.6.27.12. •Valid as Hippopotamyrus macrops (Boulenger 1909) -- (Gosse 1984:75 [ref. 6169]). •Valid as Cyphomyrus macrops (Boulenger 1909) -- (Myers 1960:125 [ref. 3128], Kramer & van der Bank 2011:2688 [ref. 31546], Mulelenu et al. 2020:17 [ref. 37340]). Current status: Valid as Cyphomyrus macrops (Boulenger 1909). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

macrops, Myomyrus Boulenger [G. A.] 1914:383 [Annals and Magazine of Natural History (Series 8) v. 14 (no. 83) (art. 28); ref. 14145] Ja River, and Bumba River, a tributary of the Ja River, Cameroon. Syntypes: (4) BMNH 1920.5.17.1-3 (3) Ja R., ?BMNH 1909.7.9.23-24 (?1). •Valid as Myomyrus macrops Boulenger 1914 -- (Gosse 1984:107 [ref. 6169], Poll & Gosse 1995:135 [ref. 24781], Kiselkewa et al. 2020:[7] 706 [ref. 38315], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Myomyrus macrops Boulenger 1914. Mormyridae. Distribution: Western and central Africa. Habitat: freshwater.

macroterops, Marcusenius Boulenger [G. A.] 1920:12 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 2 (fasc. 4); ref. 587] Poko, Democratic Republic of Congo. Syntypes: BMNH 1919.9.10.36 (1), MRAC 7750 (1). •Valid as Hippopotamyrus macroterops (Boulenger 1920) -- (Gosse 1984:75 [ref. 6169], Kramer & Swartz 2010:2229 [ref. 30915], Munene et al. 2021:20 [ref. 39283]). •Valid as Pollimyrus macroterops (Boulenger 1920) -- (Sullivan et al. 2022:187 [ref. 39811]). Current status: Valid as Pollimyrus macroterops (Boulenger 1920). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

macularius, Marcusenius Fowler [H. W.] 1936:248, Fig. 5 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 88; ref. 1424] Fort Sibut, Central African Republic [Ubangi-Shari]. Holotype: ANSP 65523. Type catalog: Böhlke 1984:128 [ref. 13621]. •Synonym of Pollimyrus lhuysi (Steindachner 1870) -- (Gosse 1984:117 [ref. 6169]). •Synonym of Brevimyrus niger (Günther 1866). Current status: Synonym of Brevimyrus niger (Günther 1866). Mormyridae.

maculipinnis, Marcusenius Nichols [J. T.] & LaMonte [F. R.] 1934:1, Fig. 1 [American Museum Novitates No. 723; ref. 16441] Luluabourg [Kananga], Kasai District, Democratic Republic of Congo. Holotype: AMNH 12355. Paratypes: AMNH 12400 (3). •Valid as Pollimyrus maculipinnis (Nichols & LaMonte 1934) -- (Gosse 1984:117 [ref. 6169], Kramer et al. 2013:16 [ref. 33002], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Pollimyrus maculipinnis (Nichols & LaMonte 1934). Mormyridae. Distribution: Central Africa: central and upper Congo River Basin (Democratic Republic of Congo). Habitat: freshwater.

macupe, Mormyrus Peters [W. (C. H.)] 1855:257, ?87, Pl. 16 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1855; ref. 3449] Mozambique. Still researching. Mormyridae.

magnitrunci, Petrocephalus Kramer [L. B.], Bills [I. R.], Skelton [P. H.] & Wink [M.] 2012:2240, Fig. 2 (no. 31) [Journal of Natural History v. 46 (no. 35-36); ref. 32160] Okavango Delta, southeast of Chief's Island, Boro River, 19°31'57"S, 23°05'21"E, Botswana. Holotype: SAIAB 67069. Paratypes: SAIAB 186057 (10). •Valid as Petrocephalus magnitrunci Kramer, Bills, Skelton & Wink 2012 -- (Bruton et al. 2018:36 [ref. 36373], Skelton 2019:230 [ref. 36564]). Current status: Valid as Petrocephalus magnitrunci Kramer, Bills, Skelton & Wink 2012. Mormyridae. Distribution: Boro River, Okavango Delta, Botswana and Angola. Habitat: freshwater.

magnoculis, Petrocephalus Kramer [L. B.], Bills [I. R.], Skelton [P. H.] & Wink [M.] 2012:2241, Fig. 2 (no. 23) [Journal of Natural History v. 46 (no. 35-36); ref. 32160] Cunene River, just below the Ruacana Falls, Hippo Pool campsite, 17°24'24"S, 14°13'01"E, Namibia, elevation about 800 meters. Holotype: SAIAB 78788. Paratypes: SAIAB 78790 (1), 79480 (1), 186053 (1); ZSM 38659 (1), 38660 (1). Plus non-types listed on p. 2192. •Valid as Petrocephalus magnoculis Kramer, Bills, Skelton & Wink 2012 -- (Skelton 2019:230 [ref. 36564]). Current status: Valid as Petrocephalus magnoculis Kramer, Bills, Skelton & Wink 2012. Mormyridae. Distribution: Southwestern Africa: Namibia and Angola. Habitat: freshwater.

marchei, Petrocephalus Sauvage [H.-E.] 1879:100 [11] [Bulletin de la Société philomathique de Paris (7th Série) v. 3; ref. 3881] Ogooué River at Doumé, Gabon. Holotype (unique): MNHN A-0891. Type catalog: Bertin 1940:267 [ref. 293]. On p. 11 of separate. Seen as marchii in the Zoological Record. •Valid as Pollimyrus marchei (Sauvage 1879) -- (Gosse 1984:118 [ref. 6169]). •Valid as Ivindomyrus marchei (Sauvage 1879) -- (Hopkins et al. 2007:321 [ref. 30019], Lavoué et al. 2010:43 [ref. 30944], Kramer et al. 2012:2233 [ref. 32160], Fermon et al. 2022:123 [ref. 39448]). Current status: Valid as Ivindomyrus marchei (Sauvage 1879). Mormyridae. Distribution: Western-central Africa: Lower Guinea and Gabon. Habitat: freshwater.

marchii, Petrocephalus Boulenger [G. A.] 1899:792 [Proceedings of the Zoological Society of London 1898 (pt 4) (art. 4); ref. 17092] This spelling used by Boulenger in several publications; in this reference the original as marchei Sauvage 1878 [1879] also is given, so marchii is regarded as an unjustified emendation. •Synonym of Ivindomyrus marchei (Sauvage 1879) -- (Kramer et al. 2012:2233 [ref. 32160]). Unjustified Emend.. Current status: Synonym of Ivindomyrus marchei (Sauvage 1879). Mormyridae. Habitat: freshwater.

mariae, Mormyrus (Mormyrops) Schilthuis [L.] 1891:92 [Tijdschrift der Nederlandsche Dierkundige Vereeniging, Ser. 2 v. 3; ref. 3925] Kinshasa, Stanley Pool, upper Congo River near Brazzaville, Democratic Republic of Congo. Holotype (unique): BMNH 1899.9.6.18. •Valid as Mormyrops mariae (Schilthuis 1891) -- (Gosse 1984:96 [ref. 6169]). Current status: Valid as Mormyrops mariae (Schilthuis 1891). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

marianne, Pollimyrus Kramer [L. B.], van der Bank [F. H.], Flint [N.], Sauer-Gürth [H.] & Wink [M.] 2003:53, Figs. 1(Z) [Environmental Biology of Fishes v. 67 (no. 1); ref. 27466] Zambezi River, Lisikili backwater, 17°29'S, 24°26'E, Africa. Holotype: SAIAB 66943. Paratypes: SAIAB 66944 (10). Plus non-type material. •Valid as Pollimyrus marianne Kramer, van der Bank, Flint, Sauer-Gürth & Wink 2003 -- (Marshall 2011:56 [ref. 31755], Kramer & Wink 2013:2345 [ref. 32824] as cf. marianne, Kramer et al. 2013:16 [ref. 33002], Bruton et al. 2018:38 [ref. 36373], Skelton 2019:230 [ref. 36564]). Current status: Valid as Pollimyrus marianne Kramer, van der Bank, Flint, Sauer-Gürth & Wink 2003. Mormyridae. Distribution: Southern Africa: upper Zambezi River, Zimbabwe, Angola. Habitat: freshwater.

masuianus, Mormyrops Boulenger [G. A.] 1898:4, Pl. 2 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Holotype (unique): MRAC 144. •Valid as Mormyrops masuianus Boulenger 1898 -- (Gosse 1984:96 [ref. 6169], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Mormyrops masuianus Boulenger 1898. Mormyridae. Distribution: Central Africa: central and upper Congo River basin. Habitat: freshwater.

mbossou, Petrocephalus Lavoué [S.], Sullivan [J. P.] & Arnegard [M. E.] 2010:38, Fig. 13 [Zootaxa No. 2600; ref. 30944] Cuvette-Ouest, small branch of Lékoli River, ca. 300 meters long before it re-enters the main channel of the Lékoli, 0.62°N, 14.91°E, Odzala National Park, Congo River basin, Democratic Republic of Congo. Holotype (unique): CUMV 92389. •Valid as Petrocephalus mbossou Lavoué, Sullivan & Arnegard 2010 -- (Lavoué 2011:26 [ref. 31401], Lavoué 2012:2167 [ref. 32189], Lavoué 2016:325 [ref. 34484]). Current status: Valid as Petrocephalus mbossou Lavoué, Sullivan & Arnegard 2010. Mormyridae. Distribution: Congo River basin, Democratic Republic of Congo. Habitat: freshwater.

mento, Mormyrus Boulenger [G. A.] 1890:193 [Annals and Magazine of Natural History (Series 6) v. 6 (no. 32) (art. 25); ref. 17024] Gabon. Holotype (unique): BMNH 1881.7.20.1. •Valid as Marcusenius mento (Boulenger 1890) -- (Gosse 1984:86 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Bigorne & Paugy 1990:38 [ref. 13599], Bigorne in Lévêque et al. 1990:145 [ref. 21589], Paugy et al. 1990:336 [ref. 26477], Hopkins et al. 2007:285 [ref. 30019], Kramer 2013:124 [ref. 32737], Kramer & Wink 2013:8 [2334] [ref. 32824]). Current status: Valid as Marcusenius mento (Boulenger 1890). Mormyridae. Distribution: West-central Africa; also introduced in some areas of Africa. Habitat: freshwater.

meronai, Marcusenius Bigorne [R.] & Paugy [D.] 1990:34, Fig. 3 [Ichthyological Exploration of Freshwaters v. 1 (no. 1); ref. 13599] Rokel at Kondembaya, about 9°21'N, 11°33'E, Sierra Leone. Holotype: MNHN 1989-0967. Paratypes: MNHN 1989-0968 (3), 1989-0969 (2). •Valid as Marcusenius meronai Bigorne & Paugy 1990 -- (Bigorne in Lévêque et al. 1990:147 [ref. 21589], Paugy et al. 1990:336 [ref. 26477], Kramer & Wink 2013:8 [2334] [ref. 32824], Pezold et al. 2016:102 [ref. 34870]). Current status: Valid as Marcusenius meronai Bigorne & Paugy 1990. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

microcephalus, Mormyrus Günther [A.] 1867:115 [6] [Annals and Magazine of Natural History (Series 3) v. 20 (no. 116) (art. 15); ref. 1989] Ogowe River, Gabon. Holotype (unique): BMNH 1867.5.22.6. On p. 6 of separate. •Synonym of Brienomyrus brachyistius (Gill 1862) -- (Gosse 1984:64 [ref. 6169], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Brienomyrus brachyistius (Gill 1862). Mormyridae. Habitat: freshwater.

microphthalmus, Petrocephalus Pellegrin [J.] 1909:348 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 14 (no. 7) [1908]; ref. 14395] Lower Ogooué River, Ogooué River basin at Ngomo, 00°49'S, 9°57'E [but estimaed as 0.82°S, 9.95°E], Gabon. Holotype (unique): MNHN 1908-0211. Type catalog: Bertin 1940:264 [ref. 293]. Estimated locality from Lavoué et al. 2010:19 [ref. 30944]. •Valid as Petrocephalus microphthalmus Pellegrin 1909 -- (Gosse 1984:113 [ref. 6169], Lavoué et al. 2004:520 [ref. 27871], Hopkins et al. 2007:239 [ref. 30019], Lavoué et al. 2010:19 [ref. 30944], Kramer et al. 2012:2233 [ref. 32160], Lavoué 2012:2167 [ref. 32189], Skelton 2019:230 [ref. 36564] as micropthalmus, Stiassny et al. 2021:1686 [ref. 39000], Fermon et al. 2022:127 [ref. 39448], Walsh et al. 2022:[5] [ref. 39281]). Current status: Valid as Petrocephalus microphthalmus Pellegrin 1909. Mormyridae. Distribution: Western-central Africa: Gabon, Republic of Congo, Democratic Republic of Congo, Angola. Habitat: freshwater.

microps, Stomatorhinus Boulenger [G. A.] 1898:9, Pl. 4 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Boma and Matadi, Lower Congo and region of the cataracts, Manyanga. Syntypes: BMNH 1898.11.12.7-9 (3) Matadi, 1898.11.12.10 (1) Leopoldville; MRAC 48 (1), 68 (1), 94 (1). •Valid as Stomatorhinus microps Boulenger 1898 -- (Gosse 1984:121 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082]). Current status: Valid as Stomatorhinus microps Boulenger 1898. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

microstoma, Mormyrops Boulenger [G. A.] 1898:6, Pl. 1 (fig. 3) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] New Antwerp, Upper Congo. Holotype (unique): MRAC 160. •Valid as Mormyrops microstoma Boulenger 1898 -- (Gosse 1984:96 [ref. 6169], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Mormyrops microstoma Boulenger 1898. Mormyridae. Distribution: Central Africa: central and upper Congo River basin. Habitat: freshwater.

mirus, Gnathonemus Boulenger [G. A.] 1898:11, Pl. 3 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Holotype (unique): MRAC 131. •Valid as Campylomormyrus mirus (Boulenger 1898) -- (Gosse 1984:68 [ref. 6169], Kiselkewa et al. 2020:[7] 706 [ref. 38315], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus mirus (Boulenger 1898). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

moeruensis, Gnathonemus Boulenger [G. A.] 1915:163 [Revue de Zoologie Africaine v. 4 (fasc. 2); ref. 15086] Lake Moero [Lake Mweru] ,Democratic Republic of Congo. Holotype (unique): MRAC 14137. •Synonym of Marcusenius macrolepidotus (Peters 1852) -- (Gosse 1984:85 [ref. 6169], Seegers 1996:73 [ref. 23725], Kramer et al. 2007:678 [ref. 29168]). •Most likely a subspecies of Marcusenius macrolepidotus, subspecies moeruensis (Boulenger 1915) -- (Kramer & Wink 2013:17 [2343] [ref. 32824]). Current status: Synonym of Marcusenius macrolepidotus (Peters 1852). Mormyridae. Habitat: freshwater.

monteiri, Mormyrus Günther [A.] 1873:144 [Annals and Magazine of Natural History (Series 4) v. 12 (no. 68) (art. 19); ref. 2003] Boma, Congo River, Democratic Republic of Congo. Syntypes: (3) BMNH 1873.7.28.3 (1), 1873.7.28.7 (1). •Valid as Marcusenius monteiri (Günther 1873) -- (Gosse 1984:86 [ref. 6169], Kramer & Wink 2013:9 [2335] [ref. 32824], Kiselkewa et al. 2020:[7] 706 [ref. 38315]). Current status: Valid as Marcusenius monteiri (Günther 1873). Mormyridae. Distribution: Central Africa: Congo River (Democratic Republic of Congo). Habitat: freshwater.

moorii, Mormyrus Günther [A.] 1867:116 [7] [Annals and Magazine of Natural History (Series 3) v. 20 (no. 116) (art. 15); ref. 1989] Talagouga, Ogowe, Gabon. Neotype: MRAC 87685. On p. 7 of separate. Original holotype in Liverpool Museum, apparently lost. Neotype designated by Boden et al. 1997:1672 [ref. 23218]. •Valid as Marcusenius moorii (Günther 1867) -- (Gosse 1984:87 [ref. 6169], Boden et al. 1997:1672 [ref. 23218], Hopkins et al. 2007:283 [ref. 30019], Kramer & Wink 2013:9 [2335] [ref. 32824], Kisekelwa et al. 2016:350 [ref. 34365], Skelton 2019:226, 231 [ref. 36564], Decru et al. 2019:234 [ref. 36749], Mambo Baba et al. 2020:[4] [ref. 37385], Stiassny et al. 2021:1686 [ref. 39000], Fermon et al. 2022:123 [ref. 39448], Walsh et al. 2022:[5] [ref. 39281]). Current status: Valid as Marcusenius moorii (Günther 1867). Mormyridae. Distribution: Western-central Africa: Ogowe and Congo basins (Cameroon, Gabon, Republic of Congo, Democratic Republic of Congo, and Angola). Habitat: freshwater.

mucupe, Mormyrus Peters [W. (C. H.)] 1852:275 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1852; ref. 18539] Mozambique. Lectotype: ZMB 3670. Paralectotypes: ZMB 32045 (1). Also in Peters 1868:87, Pl. 16 (fig. 1) [ref. 3440]. Lectotype selected by Seegers 1996:79 [ref. 23725]. •Synonym of Mormyrus longirostris Peters 1852 -- (Gosse 1984:103 [ref. 6169], Seegers 1996:78 [ref. 23725]). Current status: Synonym of Mormyrus longirostris Peters 1852. Mormyridae. Habitat: freshwater.

multisquamatus, Marcusenius Kramer [L. B.] & Wink [M.] 2013:13 [2339], Fig. 4e [Journal of Natural History v. 47 (nos. 35-36); ref. 32824] Cunene River: Epupa Falls, Hot Springs Campsite, estimated 300 meters upstream from the Falls, 17°00'07"S, 13°14'57"E, Namibia, elevation about 600 meters. Holotype: SAIAB 78781. Paratypes: SAIAB 78780 (2), 78792 (1); ZSM 38526 (2), 38527 (2). Plus non-type specimens. •Valid as Marcusenius multisquamatus Kramer & Wink 2013 -- (Maake et al. 2014:466 [ref. 33223], Kramer et al. 2016:8 [ref. 34331], Skelton 2019:231 [ref. 36564]). Current status: Valid as Marcusenius multisquamatus Kramer & Wink 2013. Mormyridae. Distribution: Cunene River just above Epupa Falls, Angola/Namibia border. Habitat: freshwater.

nacra, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:257 [Histoire naturelle des poissons v. 19; ref. 4883] No locality [= Egypt]. Based on a drawing. •Synonym of Mormyrus kannume Forsskål 1775 -- (Gosse 1984:102 [ref. 6169]). Current status: Synonym of Mormyrus kannume Fabricius 1775. Mormyridae. Habitat: freshwater.

niger, Mormyrus Günther [A.] 1866:219 [Catalogue of the fishes in the British Museum v. 6; ref. 1983] Gambia. Syntypes: (at least 4) BMNH 1862.5.20.5 (1) Gambia, BMNH 1865.5.9.2 (1) Niger. •Valid as Brienomyrus niger (Günther 1866) -- (Gosse 1984:64 [ref. 6169], Bigorne in Lévêque et al. 1990:161 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:16 [ref. 28023]). •Valid as Brevimyrus niger (Günther 1866) -- (Hopkins et al. 2007:309 [ref. 30019], Neumann et al. 2016:303 [ref. 35036], Moritz et al. 2019:143 [ref. 36792]). Current status: Valid as Brevimyrus niger (Günther 1866). Mormyridae. Distribution: West Africa and White Nile basin. Habitat: freshwater.

nigricans, Marcusenius Boulenger [G. A.] 1906:434 [Annals and Magazine of Natural History (Series 7) v. 17 (no. 101) (art. 49); ref. 574] Mouth of Katonga River, Lake Victoria [Victoria Nyanza]. Syntypes: (numerous) BMNH 1906.5.30.85-94 (9), NMW 8288-90 (3). •Valid as Pollimyrus nigricans (Boulenger 1906) -- (Gosse 1984:118 [ref. 6169], De Vos et al. 2001:131 [ref. 26059], Seegers et al. 2003:29 [ref. 28087], Kramer et al. 2013:16 [ref. 33002], Levin & Golubtsov 2018:73 [ref. 35732], Akoth et al. 2023:8 [ref. 40069], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Pollimyrus nigricans (Boulenger 1906). Mormyridae. Distribution: East Africa. Habitat: freshwater.

nigricans, Mormyrops Boulenger [G. A.] 1899:66, Pl. 32 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Kutu, Lake Leopold II, Upper Congo. Holotype (unique): MRAC 516. •Valid as Mormyrops nigricans Boulenger 1899 -- (Gosse 1984:96 [ref. 6169], Hopkins et al. 2007:255 [ref. 30019], Stiassny et al. 2021:1686 [ref. 39000], Fermon et al. 2022:124 [ref. 39448]). Current status: Valid as Mormyrops nigricans Boulenger 1899. Mormyridae. Distribution: Western and central Africa: Gabon and Congo. Habitat: freshwater.

nigripinnis, Marcusenius Boulenger [G. A.] 1899:67, Pl. 33 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Kutu, Lake Leopold II, Upper Congo. Syntypes: BMNH 1899.9.26.28-29 (2); MRAC 344 (1), 608-609 (2), 610 (1), 611 (1). •Valid as Pollimyrus nigripinnis (Boulenger 1899) -- (Gosse 1984:118 [ref. 6169], Kramer et al. 2013:16 [ref. 33002], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Pollimyrus nigripinnis (Boulenger 1899). Mormyridae. Distribution: Central Africa: central and upper Congo River system (Democratic Republic of Congo). Habitat: freshwater.

niloticus, Centriscus Bloch [M. E.] & Schneider [J. G.] 1801:113, Pl. 30 (upper fig.) [M. E. Blochii, Systema Ichthyologiae; ref. 471] Upper Egypt. No types known. •Valid as Mormyrus niloticus (Bloch & Schneider 1801) -- (Gosse 1984:104 [ref. 6169], Neumann et al. 2016:303 [ref. 35036], Akoth et al. 2023:8 [ref. 40069]). Current status: Valid as Mormyrus niloticus (Bloch & Schneider 1801). Mormyridae. Distribution: East Africa. Habitat: freshwater.

ntemensis, Gnathonemus Pellegrin [J.] 1927:298 [Bulletin de la Société Zoologique de France v. 52 (no. 4); ref. 3407] Ntem River, Cameroon. Holotype (unique): MNHN 1927-0162. Type catalog: Bertin 1940:266 [ref. 293]. •Valid as Marcusenius ntemensis (Pellegrin 1927) -- (Gosse 1984:87 [ref. 6169], Teugels et al. 2001:246 [ref. 25701], Hopkins et al. 2007:287 [ref. 30019], Kramer & Wink 2013:9 [2335] [ref. 32824], Fermon et al. 2022:123 [ref. 39448]). Current status: Valid as Marcusenius ntemensis (Pellegrin 1927). Mormyridae. Distribution: Western-central Africa: Cameroon and Gabon. Habitat: freshwater.

ntotom, Paramormyrops Rich [M.], Sullivan [J. P.] & Hopkins [C. D.] 2017:[16], Figs. 12-13 [Zoological Journal of the Linnean Society v. 180 (no. 3); ref. 35306] Ogooué River at Doumé, Ogooué-Lolo, Gabon, 0.84137°S, 12.96548°E. Holotype: CUMV 98138. Paratypes: AMNH, CUMV, MNHN, MRAC. Plus non-type material. •Valid as Paramormyrops ntotom Rich, Sullivan & Hopkins 2017 -- (Fermon et al. 2022:125 [ref. 39448]). Current status: Valid as Paramormyrops ntotom Rich, Sullivan & Hopkins 2017. Mormyridae. Distribution: West Africa: Ogooué River basin (Gabon). Habitat: freshwater.

numenius, Gnathonemus Boulenger [G. A.] 1898:14, Pl. 6 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Syntypes: BMNH 1898.11.12.23 (1), MRAC 126 (1). •Valid as Campylomormyrus numenius (Boulenger 1898) -- (Gosse 1984:68 [ref. 6169], Skelton 2019:231 [ref. 36564], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus numenius (Boulenger 1898). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

nyasensis, Gnathonemus Worthington [E. B.] 1933:295, Fig. 2 [Proceedings of the Zoological Society of London Part 2; ref. 16532] Bar House and Southwest Arm, Lake Malawi [Lake Nyasa], southeastern Africa. Syntypes: (27) BMNH 1932.11.15.25-34 (27), NMW 6994 (1). •Valid as Marcusenius nyasensis (Worthington 1933) -- (Gosse 1984:87 [ref. 6169]). •Synonym of Marcusenius livingstonii (Boulenger 1899) -- (Snoeks 2004:20 [ref. 28111]). Current status: Synonym of Marcusenius livingstonii (Boulenger 1899). Mormyridae. Distribution: Eastern Africa: Lake Malawi. Habitat: freshwater.

occidentalis, Hyperopisus Günther [A.] 1866:223 [Catalogue of the fishes in the British Museum v. 6; ref. 1983] Niger, western Africa. Holotype (unique): BMNH 1865.4.6.12. •Valid as Hyperopisus bebe (Lacepède 1803), but a valid subspecies -- (Gosse 1984:78 [ref. 6169], Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Hyperopisus bebe (Lacepède 1803). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

odzalaensis, Petrocephalus Lavoué [S.], Sullivan [J. P.] & Arnegard [M. E.] 2010:22, Fig. 8 [Zootaxa No. 2600; ref. 30944] Lékénie River at Mboko débarcadère, Odzala National Park, 0.62°N, 14.90°E, Congo River basin, Democratic Republic of Congo. Holotype: CUMV 88048. Paratypes: AMNH and CUMV. Plus non-type specimens. •Valid as Petrocephalus odzalaensis Lavoué, Sullivan & Arnegard 2010 -- (Lavoué 2011:26 [ref. 31401], Lovoué 2012:2167 [ref. 32189], Lavoué & Sullavan 2014:49 [ref. 33262], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Petrocephalus odzalaensis Lavoué, Sullivan & Arnegard 2010. Mormyridae. Distribution: Western-central Africa: Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

ogoouensis, Cryptomyrus Sullivan [J. P.], Lavoué [S.] & Hopkins [C. D.] 2016:133, Figs. 6A, 7 [ZooKeys No. 561; ref. 34183] Ogooué River at Doumé falls, off rocks on left bank near village of Doumé, Ogooué-Lolo Province, Gabon, 0°50.4822'S, 12°57.9288'E, depth 1.5 meters. Holotype (unique): CUMV 98155. •Valid as Cryptomyrus ogoouensis Sullivan, Lavoué & Hopkins 2016 -- (Fermon et al. 2022:122 [ref. 39448]). Current status: Valid as Cryptomyrus ogoouensis Sullivan, Lavoué & Hopkins 2016. Mormyridae. Distribution: West Africa: Gabon. Habitat: freshwater.

okavangensis, Gnathonemus form Pappenheim [P.] 1907:354 [Mitteilungen aus dem Zoologischen Museum in Berlin v. 3 (no. 3); ref. 15162] Appeared as a form of Gnathonemus macrolepidotus Peters from the Okavango River, Damaraland, Africa; regarded as infrasubspecific and not available. •In the synonymy of Marcusenius macrolepidotus (Peters 1852) -- (Seegers 1996:73 [ref. 23725], Kramer et al. 2007:678 [ref. 29168]). •Possibly in the synonymy of Marcusenius altisambesi Kramer, Skelton, van der Bank & Wink 2007 -- (Kramer et al. 2007:682 [ref. 29168]). Infrasubspecific. Current status: Synonym of Marcusenius macrolepidotus (Peters 1852). Mormyridae.

okavangensis, Petrocephalus Kramer [L. B.], Bills [I. R.], Skelton [P. H.] & Wink [M.] 2012:2242, Fig. 2 (no. 9) [Journal of Natural History v. 46 (no. 35-36); ref. 32160] Thoage River, Nguma [Guma] Lagoon, Okavango, Botswana. Holotype: SAIAB 30046. Paratypes: SAIAB 186062 (41). Plus non-types listed on p. 2192. •Valid as Petrocephalus okavangensis Kramer, Bills, Skelton & Wink 2012 -- (Bruton et al. 2018:36 [ref. 36373] as okavangoensis, Skelton 2019:230 [ref. 36564]). Current status: Valid as Petrocephalus okavangensis Kramer, Bills, Skelton & Wink 2012. Mormyridae. Distribution: Okavango Delta, Botswana and Angola. Habitat: freshwater.

ona, Cryptomyrus Sullivan [J. P.], Lavoué [S.] & Hopkins [C. D.] 2016:137, Figs. 6B, 8 [ZooKeys No. 561; ref. 34183] Moukalaba River near its confluence with the Nyanga River, just above landing on Tchibanga-Digoudou road, Nyanga Province, Gabon, 2°47.3400'S, 10°43.7160'E. Holotype (unique): MNHN 2003-0425. •Valid as Cryptomyrus ona Sullivan, Lavoué & Hopkins 2016 -- (Fermon et al. 2022:122 [ref. 39448]). Current status: Valid as Cryptomyrus ona Sullivan, Lavoué & Hopkins 2016. Mormyridae. Distribution: West Africa: Gabon. Habitat: freshwater.

opdenboschi, Ivindomyrus Taverne [L.] & Géry [J.] 1975:556, Fig. [Revue de Zoologie et de Botanique Africaines v. 89 (no. 3); ref. 4348] Ivindo River, Gabon, Makokou. Holotype: MRAC 80-15-P-6. Paratypes: MNHN 1987-0889 (4); MRAC 80-15-P-7 (1), 80-15-P-8-11 (4). •Valid as Ivindomyrus opdenboschi Taverne & Géry 1975 -- (Gosse 1984:79 [ref. 6169], Poll & Gosse 1995:137 [ref. 24781], Hopkins et al. 2007:323 [ref. 30019], Fermon et al. 2022:123 [ref. 39448]). Current status: Valid as Ivindomyrus opdenboschi Taverne & Géry 1975. Mormyridae. Distribution: West-central Africa: Cameroon south to Gabon. Habitat: freshwater.

orycteropus, Campylomormyrus Poll [M.], Gosse [J.-P.] & Orts [S.] 1982:20, Fig. 2, Pl. 13 [Bulletin de l'Institut Royal des Sciences de Belgique, Biologie v. 54 (no. 5); ref. 8431] Pweto, Lake Moero [Lake Mweru], Democratic Republic of Congo. Holotype: IRSNB 633. Paratypes: IRSNB 634 (5). Type catalog: Walschaerts 1987:10 [ref. 20755], Derijst 1991:33 [ref. 21528]. •Valid as Campylomormyrus orycteropus Poss, Gosse & Orts 1982 -- (Gosse 1984:68 [ref. 6169]). Current status: Valid as Campylomormyrus orycteropus Poll, Gosse & Orts 1982. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

osborni, Marcusenius Nichols [J. T.] & Griscom [L.] 1917:667, Fig. 1 [Bulletin of the American Museum of Natural History v. 37 (art. 25); ref. 3185] Uele River, Orientale Province, Congo. Holotype: AMNH 6934. Paratypes: AMNH 6935 (2, discarded 8/1969). •Synonym of Pollimyrus isidori (Valenciennes 1847), but a valid subspecies -- (Gosse 1984:116 [ref. 6169]). •Valid as Pollimyrus osborni (Nichols & Griscom 1917) -- (Levin & Golubtsov 2018:73 [ref. 35732], Kiselkewa et al. 2020:[7] 706 [ref. 38315], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000] as cf. osborni). Current status: Valid as Pollimyrus osborni (Nichols & Griscom 1917). Mormyridae. Distribution: Central Africa: Congo basin (Democratic Republic of Congo). Habitat: freshwater.

oudoti, Mormyrops Daget [J.] 1954:81, Fig. 18 [Mémoires de l'Institut français d'Afrique Noire No. 36; ref. 11989] Bamako, upper Niger, Sudan. Holotype (unique): MNHN 1954-0007. Type catalog: Blanc 1961:261 [ref. 20870]. •Valid as Mormyrops oudoti Daget 1954 -- (Gosse 1984:97 [ref. 6169], Bigorne 1987:157 [ref. 20556], Bigorne in Lévêque et al. 1990:155 [ref. 21589]). Current status: Valid as Mormyrops oudoti Daget 1954. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

ovis, Mormyrus Boulenger [G. A.] 1898:15, Pl. 7 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Holotype (unique): MRAC 132. •Valid as Mormyrus ovis Boulenger 1898 -- (Gosse 1984:104 [ref. 6169], Stiassny et al. 2021:1686 [ref. 39000], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Mormyrus ovis Boulenger 1898. Mormyridae. Distribution: Central Africa: central and upper Congo River system (Democratic Republic of Congo). Habitat: freshwater.

oxyrhynchus, Mormyrus Lacepède [B. G. E.] 1803:619, 621 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Nile River, Egypt. Lectotype: MNHN A-9627. Paralectotypes: MNHN A-0826 (1, dry). Type catalog: Bertin 1940:268 [ref. 293] dating to Geoffroy Saint-Hilaire 1809. Holotype of authors designated lectotype by Eschmeyer 1998:1263 [ref. 23416]. •Synonym of Mormyrus kannume Forsskål 1775 -- (Gosse 1984:102 [ref. 6169] with holotype and paratype). Current status: Synonym of Mormyrus kannume Fabricius 1775. Mormyridae. Habitat: freshwater.

pallidomaculatus, Petrocephalus Bigorne [R.] & Paugy [D.] in Lévêque, Paugy & Teugels 1990:174, Fig. 15.46 [Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Collection Faune tropicale no. XXVIII. v. 1; ref. 21589] Niger River at Kalaban, near Bamako, Mali. Holotype: MNHN 1990-0137. Paratypes: MNHN 1990-0138 (12). Additional material: MNHN. Author is R. Bigorne. Appeared first as above, then in Bigorne & Paugy 1991:21, Fig. 14 [ref. 20122]. •Valid as Petrocephalus pallidomaculatus Bigorne & Paugy 1990-- (Lévèque et al. 1991:139 [ref. 31367], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2233 [ref. 32160]). Current status: Valid as Petrocephalus pallidomaculatus Bigorne & Paugy 1990. Mormyridae. Distribution: Africa. Habitat: freshwater.

pappenheimi, Marcusenius Boulenger [G. A.] 1910:540 [Annals and Magazine of Natural History (Series 8) v. 6 (no. 36); ref. 577] Quanza River at Cunga, Angola. Syntypes: ANSP 37971 (1), BMNH 1910.11.28.36-43 (orig. 10), NMW 58926 (3), USNM 86610 (1), ZMB 18203 (3). Type catalog: Böhlke 1984:128 [ref. 13621]. •Valid as Hippopotamyrus pappenheimi (Boulenger 1910) -- (Gosse 1984:76 [ref. 6169], Kramer & Swartz 2010:2229 [ref. 30915], Skelton 2019:231 [ref. 36564], Mutizwa et al. 2021:[7] [ref. 38598]). •Valid as Heteromormyrus pappenheimi (Boulenger 1910) -- (Sullivan et al. 2022:177 [ref. 39811]). Current status: Valid as Heteromormyrus pappenheimi (Boulenger 1910). Mormyridae. Distribution: Southern Africa: Angola. Habitat: freshwater.

parvus, Mormyrops Boulenger [G. A.] 1899:65, Pl. 31 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Boma, lower Congo River, Democratic Republic of Congo. Syntypes: (5) BMNH 1899.9.26.9 (1), 1899.9.26.10 (1, skeleton); MRAC 509-511 (1, 1, 1). •Valid as Mormyrops parvus Boulenger 1899 -- (Gosse 1984:97 [ref. 6169]). Current status: Valid as Mormyrops parvus Boulenger 1899. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

patrizii, Stomatorhinus Vinciguerra [D.] 1928:10 [6] [Annali del Museo Civico di Storia Naturale `Giacomo Doria' v. 53; ref. 15879] Buta, Democratic Republic of Congo. Holotype (unique): MSNG 26451. Type catalog: Tortonese 1961:182 [ref. 10343]. On p. 6 of separate. •Valid as Stomatorhinus patrizii Vinciguerra 1928 -- (Gosse 1984:121 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Stomatorhinus patrizii Vinciguerra 1928. Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

pauciradiatus, Mormyrus Steindachner [F.] 1866:765, Pl. 13 (fig. 2) [Verhandlungen der K.-K. zoologisch-botanischen Gesellschaft in Wien v. 16; ref. 18789] Angola [possibly lower Kwanza River]. Holotype (unique): NMW 22417. •Valid as Mormyrus pauciradiatus Steindachner 1866 -- (Gosse 1984:73 [ref. 6169]). •Valid as Heteromormyrus pauciradiatus (Steindachner 1866) -- (Poll & Gosse 1995:137 [ref. 24781], Skelton 2019:231 [ref. 36564], Mutizwa et al. 2021:[7] [ref. 38598] as puaciradiatus). •Valid as Heteromormyrus pauciradiatus (Steindachner 1866) -- (Sullivan et al. 2022:177 [ref. 39811]). Current status: Valid as Heteromormyrus pauciradiatus (Steindachner 1866). Mormyridae. Distribution: Southwestern Africa: Angola. Habitat: freshwater.

paucisquamatus, Marcusenius Taverne [L.], Thys van den Audenaerde [D. F. E.] & Heymer [A.] 1976:872, Fig. 1 [Revue de Zoologie Africaine v. 90 (no. 4); ref. 7396] Nyong River, Ebogo, Cameroon Republic. Holotype: MRAC 73-18-P-11. Paratypes: MNHN 1977-0021 and 0022 (2, 2), MRAC (130). •Valid as Marcusenius paucisquamatus Taverne, Thys van den Audenaerde & Heymer 1976 -- (Gosse 1984:88 [ref. 6169]). •Synonym of Marcusenius moorii (Günther 1867) -- (Boden et al. 1997:1672 [ref. 23218]). Current status: Synonym of Marcusenius moorii (Günther 1867). Mormyridae. Habitat: freshwater.

paugyi, Hippopotamyrus Lévêque [C.] & Bigorne [R.] 1985:178, Fig. 3 [Cybium v. 9 (no. 2); ref. 5160] Kolenté River, Kolenté, Guinea. Holotype: MNHN 1981-0739. Paratypes: MNHN B-3000 (4). •Valid as Hippopotamyrus paugyi Lévêque & Bigorne 1985 -- (Lévêque et al. 1989:114 [ref. 26480], Bigorne in Lévêque et al. 1990:152 [ref. 21589], Paugy et al. 1990:336 [ref. 26477], Kramer & Swartz 2010:2229 [ref. 30915]). Current status: Valid as Hippopotamyrus paugyi Lévêque & Bigorne 1985. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

pedunculatus, Marcusenius David [L.] & Poll [M.] 1937:202, Fig. 5 [Annales du Musée du Congo Belge Sér. C (Zoologie) (Sér. 1) v. 3 (fasc. 5); ref. 1043] Boma, Congo River basin, Democratic Republic of Congo. Holotype (unique): MRAC 22664. Type catalog: Derijst 1991:55 [ref. 21528]. •Valid as Pollimyrus pedunculatus (David & Poll 1937) -- (Gosse 1984:118 [ref. 6169], Hopkins et al. 2007:327 [ref. 30019], Kramer et al. 2013:16 [ref. 33002], Fermon et al. 2022:125 [ref. 39448]). Current status: Valid as Pollimyrus pedunculatus (David & Poll 1937). Mormyridae. Distribution: Western-central Africa: Gabon and lower Congo River basin. Habitat: freshwater.

pellegrini, Petrocephalus Poll [M.] 1941:133, Fig. 1 [Revue de Zoologie et de Botanique Africaines v. 34 (no. 2); ref. 13178] Maseï River at confluence with Bon de Boan River, Nuon River system, Ivory Coast. Syntypes: MRAC 66379-80 (2). Type catalog: Derijst 1991:61 [ref. 21528]. •Valid as Petrocephalus pellegrini Poll 1941 -- (Gosse 1984:113 [ref. 6169], Bigorne in Lévêque et al. 1990:171 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Bigorne & Paugy 1991:10 [ref. 20122], Kramer et al. 2012:2233 [ref. 32160], Pezold et al. 2016:103 [ref. 34870]). Current status: Valid as Petrocephalus pellegrini Poll 1941. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

petersi, Petrocephalus Kramer [L. B.], Bills [I. R.], Skelton [P. H.] & Wink [M.] 2012:2244, Fig. 2 (no. 21) [Journal of Natural History v. 46 (no. 35-36); ref. 32160] Stream near campsite 1, edge of wet Zambezi River System, Zambezi River, 18°33'54"S, 35°39'46"E. Mozambique. Holotype: SAIAB 60846. Paratypes: SAIAB 186054 (1). Plus non-types listed on p. 2193. •Valid as Petrocephalus petersi Kramer, Bills, Skelton & Wink 2012. Current status: Valid as Petrocephalus petersi Kramer, Bills, Skelton & Wink 2012. Mormyridae. Distribution: Zambezi River delta region, Mozambique. Habitat: freshwater.

petersii, Mormyrus Günther [A.] 1862:64 [Archiv für Naturgeschichte v. 28 (pt. 1); ref. 18180] Old Calabar, Nigeria. Holotype (unique): BMNH 1863.9.29.141. Figured in Günther 1864:22, Pl. 2 (fig. 2) [ref. 13929]. Misspelled petersi by Pellegrin 1921:635 [ref. 30437]. •Valid as Gnathonemus petersii (Günther 1862) -- (Gosse 1984:72 [ref. 6169], Bigorne 1990:125 [ref. 20120], Bigorne in Lévêque et al. 1990:135 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Hopkins et al. 2007:279 [ref. 30019], Kullander & Roberts 2012:366 [ref. 31751], Skelton 2019:231 [ref. 36564], Kiselkewa et al. 2020:[7] 706 [ref. 38315], Munene et al. 2021:20 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Gnathonemus petersii (Günther 1862). Mormyridae. Distribution: Western and central Africa. Habitat: freshwater.

petherici, Marcusenius Boulenger [G. A.] 1898:7 [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Khartum, Upper Nile. Syntypes: BMNH 1862.6.17.22-23 (2), 1862.6.17.92 (1). •Valid as Pollimyrus petherici (Boulenger 1898) -- (Gosse 1984:119 [ref. 6169], De Vos et al. 2001:131 [ref. 26059], Kramer et al. 2013:16 [ref. 33002]). •Valid as Cyphomyrus petherici (Boulenger 1898) -- (Levin & Golubtsov 2018:71 [ref. 35732], Moritz et al. 2019:143 [ref. 36792], Akoth et al. 2023:7 [ref. 40069]). Current status: Valid as Cyphomyrus petherici (Boulenger 1898). Mormyridae. Distribution: Northeast Africa: upper Nile system. Habitat: freshwater.

petricolus, Marcusenius Daget [J.] 1954:101, Fig. 30 [Mémoires de l'Institut français d'Afrique Noire No. 36; ref. 11989] Markala, Sudan. Holotype: MNHN 1954-0008. Paratypes: MNHN 1960-0406 to 0408 (7, 1, 1). Type catalog: Blanc 1961:260 [ref. 20870]. •Valid as Pollimyrus petricolus (Daget 1954) -- (Gosse 1984:119 [ref. 6169], Bigorne in Lévêque et al. 1990:179 [ref. 21589], Bigorne 1991:319 [ref. 20236], Kramer et al. 2013:16 [ref. 33002], Levin & Golubtsov 2018:72 [ref. 35732]). Current status: Valid as Pollimyrus petricolus (Daget 1954). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

pfaffi, Gnathonemus Fowler [H. W.] 1958:8 [Notulae Naturae (Philadelphia) No. 310; ref. 1470] Kabara, Mali, West Africa, Niger. Holotype: ZMUC P21177. Replacement name for Gnathonemus elongatus Pfaff 1933, secondarily preoccupied by Mormyrus elongatus Rüppell 1832 when treated as congeneric. •Synonym of Marcusenius senegalensis (Steindachner 1870), but a valid subspecies -- (Daget 1984:89 [ref. 6170], Lévèque et al. 1991:138 [ref. 31367]). Replacement Name. Current status: Synonym of Marcusenius senegalensis (Steindachner 1870). Mormyridae. Habitat: freshwater.

phantasticus, Gnathonemus Pellegrin [J.] 1927:299 [Bulletin de la Société Zoologique de France v. 52 (no. 4); ref. 3407] Sanaga River at Nanga Eboko, Cameroon. Holotype (unique): MNHN 1927-0166. Type catalog: Bertin 1940:266 [ref. 293]. •Valid as Campylomormyrus phantasticus (Pellegrin 1927) -- (Gosse 1984:69 [ref. 6169], Hopkins et al. 2007:277 [ref. 30019]). Current status: Valid as Campylomormyrus phantasticus (Pellegrin 1927). Mormyridae. Distribution: West-central Africa: Sanaga River basin, Cameroon. Habitat: freshwater.

pharao, Myomyrus Poll [M.] & Taverne [L.] 1967:84, Figs. 2-3 [Revue de Zoologie et de Botanique Africaines v. 76 (nos 1-2); ref. 7986] Kinsuka, Congo River, downriver of Kinshasa, Democratic Republic of Congo. Holotype: MRAC 154594. Paratypes: BMNH 1899.6.27.22 [? = 1909.7.9.23] (1); MRAC 317 (1), 2219 (1), 154595 (1). Type catalog: Derijst 1991:57 [ref. 21528]. •Valid as Myomyrus pharao Poll & Taverne 1967 -- (Gosse 1984:107 [ref. 6169], Poll & Gosse 1995:135 [ref. 24781]). Current status: Valid as Myomyrus pharao Poll & Taverne 1967. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

pictus, Petrocephalus Marcusen [J.] 1864:153 [Mémoires de l'Académie Impériale des Sciences de St. Pétersbourg (5. Série) v. 7 (no. 4); ref. 2888] White Nile River, Sudan. Holotype (unique): NMW (apparently lost). Name credited to Heuglin 1852 [ref. 22009] by Marcusen, but species was figured on Pl. 60 (fig. 1) as Morymyrus Spec. nova., but not named by Heuglin. •Valid as Hippopotamyrus pictus (Marcusen 1864) -- (Gosse 1984:76 [ref. 6169], Bigorne in Lévêque et al. 1990:151 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:15 [ref. 28023], Kramer & Swartz 2010:2230 [ref. 30915], Kramer & van der Bank 2011:2692 [ref. 31546], Kramer et al. 2012:2233 [ref. 32160]). Current status: Valid as Hippopotamyrus pictus (Marcusen 1864). Mormyridae. Distribution: Africa. Habitat: freshwater.

plagiostoma, Marcusenius Boulenger [G. A.] 1898:7, Pl. 3 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Matadi, Lower Congo River, Democratic Republic of Congo. Syntypes: (3) BMNH 1898.11.12.13-14 (2) Matadi, MRAC 39 (1). •Valid as Pollimyrus plagiostoma (Boulenger 1898) -- (Gosse 1984:119 [ref. 6169], Kramer et al. 2013:17 [ref. 33002], Kiselkewa et al. 2020:[7] 706 [ref. 38315]). •Valid as Cyphomyrus plagiostoma (Boulenger 1898) -- (Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Cyphomyrus plagiostoma (Boulenger 1898). Mormyridae. Distribution: Western-Central Africa: Congo River (Democratic Republic of Congo). Habitat: freshwater.

polli, Stomatorhinus Matthes [H.] 1964:33, Pl. 1a [Annales, Musée Royal de l'Afrique Centrale, Tervuren, Série in 8o, Sciences Zoologiques No. 126; ref. 2911] Ikela region, Congo. Holotype: MRAC 138975. Paratypes: MRAC 68597 (1), 120176-78 (1, 1, 1), 120179-81 (3), 120182-83 (2), 120184-85 (2), 120186-88 (3), 120202-03 (2), 138976-78 (2), 138979-80 (2), 138981-82 (2), 138993 (1), 131487-94 (8). •Valid as Stomatorhinus polli Matthes 1964 -- (Gosse 1984:121 [ref. 6169], Sullivan & Hopkins 2004:13 [ref. 28082]). Current status: Valid as Stomatorhinus polli Matthes 1964. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

polylepis, Stomatorhinus Boulenger [G. A.] 1899:71, Pl. 31 (fig. 6) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Coquilhatville [now Mbandaka], and Isangila, region of the cataracts, Upper Congo. Syntypes: BMNH 1899.9.26.38-39 (2); MRAC 316 (1), 639-645 (7). •Valid as Stomatorhinus polylepis Boulenger 1899 -- (Gosse 1984:122 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082], Hopkins et al. 2007:273 [ref. 30019], Fermon et al. 2022:126 [ref. 39448] possible). Current status: Valid as Stomatorhinus polylepis Boulenger 1899. Mormyridae. Distribution: Western-central Africa: lower and central Congo River basin. Habitat: freshwater.

pongolensis, Gnathonemus Fowler [H. W.] 1934:419, Fig. 6 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 86; ref. 1419] Pongola River, Paulpietersburg District, South Africa. Holotype (unique): ANSP 54950. Type catalog: Böhlke 1984:128 [ref. 13621]. •Synonym of Marcusenius macrolepidotus (Peters 1852) -- (Gosse 1984:85 [ref. 6169], Seegers 1996:73 [ref. 23725]). •Valid as Marcusenius pongolensis (Fowler 1934) -- (Kramer et al. 2007:680 [ref. 29168], Marshall 2011:53 [ref. 31755], Kramer & Wink 2013:9 [2335] [ref. 32824], Maake et al. 2014:473 [ref. 33223], Kramer et al. 2016:8 [ref. 34331], Kramer et al. 2016:369 [ref. 34938]). Current status: Valid as Marcusenius pongolensis (Fowler 1934). Mormyridae. Distribution: Southeastern Africa. Habitat: freshwater.

proboscideus, Paramormyrus Rochebrune [A. T. de] 1885:97 [Bulletin de la Société philomathique de Paris (7th Série) v. 9; ref. 3791] Lândana, Angola. Museo Bouvieri. Mormyridae.

proboscirostris, Mormyrus Boulenger [G. A.] 1898:16, Pl. 8 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto River, Congo. Holotype (unique): MRAC 127. •Synonym of Mormyrus rume Valenciennes 1847, but a valid subspecies -- (Gosse 1984:106 [ref. 6169]). Current status: Synonym of Mormyrus rume Valenciennes 1847. Mormyridae. Habitat: freshwater.

psittacus, Mormyrus Boulenger [G. A.] 1897:427 [Annals and Magazine of Natural History (Series 6) v. 20 (no. 119) (art. 50); ref. 14629] Stanley [Boyoma] Falls, upper Congo River, Democratic Republic of Congo, 0°30'N, 25°12'E. Holotype (unique): BMNH 1897.9.30.26. •Valid as Hippopotamyrus psittacus (Boulenger 1897) -- (Gosse 1984:76 [ref. 6169], Bigorne in Lévêque et al. 1990:150 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:15 [ref. 28023]). •Valid as Cyphomyrus psittacus (Boulenger 1897) -- (Myers 1960:125 [ref. 3128], Kramer & van der Bank 2011:2688 [ref. 31546], Levin & Golubtsov 2018:73 [ref. 35732], Skelton 2019:231 [ref. 36564], Mulelenu et al. 2020:17 [ref. 37340], Munene et al. 2021:20 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Cyphomyrus psittacus (Boulenger 1897). Mormyridae. Distribution: Western-central Africa: Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

pulsivertens, Petrocephalus Lavoué [S.], Sullivan [J. P.] & Arnegard [M. E.] 2010:32, Fig. 11 [Zootaxa No. 2600; ref. 30944] Small channel around island in Lékoli River, Odzala National Park, 0.62°N, 14.95°E, Congo River basin, Central African Republic. Holotype: CUMV 88085. Paratypes: AMNH and CUMV. Plus non-type specimens. •Valid as Petrocephalus pulsivertens Lavoué, Sullivan & Arnegard 2010 -- (Lavoué 2011:26 [ref. 31401]). Current status: Valid as Petrocephalus pulsivertens Lavoué, Sullivan & Arnegard 2010. Mormyridae. Distribution: Congo River basin, Central African Republic. Habitat: freshwater.

pulverulentus, Marcusenius Boulenger [G. A.] 1899:68, Pl. 33 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Coquilhatville, Upper Congo. Syntypes: BMNH 1899.9.23.26-27 (2), MRAC 612-613 (1, 1). •Valid as Pollimyrus pulverulentus (Boulenger 1899) -- (Gosse 1984:119 [ref. 6169], Kramer et al. 2013:17 [ref. 32002], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Pollimyrus pulverulentus (Boulenger 1899). Mormyridae. Distribution: Central Africa: central and upper Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

puncticulatus, Stomatorhinus Boulenger [G. A.] 1899:69, Pl. 31 (fig. 3) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Boma and Chiloango, Democratic Republic of Congo. Syntypes: (4 of following) BMNH 1899.9.26.36 (1), 1899.9.26.38-39 (2); ?MRAC 316 (1), 634 (1), 635 (1), ?639-645 (7). •Valid as Stomatorhinus puncticulatus Boulenger 1899 -- (Gosse 1984:122 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Stomatorhinus puncticulatus Boulenger 1899. Mormyridae. Distribution: Central Africa: upper Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

retrodorsalis, Marcusenius Nichols [J. T.] & Griscom [L.] 1917:668, Fig. 2 [Bulletin of the American Museum of Natural History v. 37 (art. 25); ref. 3185] Small forest brook tributary to the Bima River, Niapu, Congo. Holotype (unique): AMNH 6933. •Valid as Hippopotamyrus retrodorsalis (Nichols & Griscom 1917) -- (Gosse 1984:77 [ref. 6169], Kramer & Swartz 2010:2230 [ref. 30915]). •Valid as Paramormyrops retrodorsalis (Nichols & Griscom 1917) -- (Rich et al. 2017:[13] [ref. 35306]). Current status: Valid as Paramormyrops retrodorsalis (Nichols & Griscom 1917). Mormyridae. Distribution: Congo, Central Africa. Habitat: freshwater.

rheni, Gnathonemus Fowler [H. W.] 1936:250, Fig. 7 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 88; ref. 1424] Lake Victoria [Victoria Nyanza] at Kitala, Uganda. Holotype: ANSP 65543. Paratypes: ANSP 65544 (1). Type catalog: Böhlke 1984:128 [ref. 13621]. •Valid as Marcusenius rheni (Fowler 1936) -- (Gosse 1984:88 [ref. 6169], Akoth et al. 2023:7 [ref. 40069]). •Probably a synonym of Marcusenius victoriae (Worthington 1929) -- (Seegers et al. 2003:29 [ref. 28087]). Current status: Synonym of Marcusenius victoriae (Worthington 1929). Mormyridae. Distribution: East Africa: Lake Victoria. Habitat: freshwater.

rhodesianus, Gnathonemus Määr [A.] 1962:781, Fig. 2 [Occasional Papers of the National Museums of Southern Rhodesia. B, Natural Sciences. v. 3 (no. 26B); ref. 6047] Lake McIlwaine [now Lake Chivero], Tiber Bay, 25 miles south of Salisbury, Zimbabwe, depth 15 feet. Holotype (unique): NMBZ [ex QVMS F] 0132. •Valid as Marcusenius rhodesianus (Määr 1962) -- (Gosse 1984:88 [ref. 6169]). •Synonym of Marcusenius macrolepidotus (Peters 1852). Current status: Synonym of Marcusenius macrolepidotus (Peters 1852). Mormyridae. Distribution: Southern Africa. Habitat: freshwater.

rhynchophorus, Gnathonemus Boulenger [G. A.] 1898:12, Pl. 5 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Upoto, Upper Congo. Syntypes: BMNH 1898.11.12.21-22 (2); MRAC 130 (1), 1713 (1). •Valid as Campylomormyrus rhynchophorus (Boulenger 1898) -- (Gosse 1984:69 [ref. 6169], Skelton 2019:231 [ref. 36564], Kiselkewa et al. 2020:[7] 706 [ref. 38315] as aff. rhynchophorus, Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus rhynchophorus (Boulenger 1898). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

rudebeckii, Marcusenius Svensson [G. S. O.] 1933:33, Fig. 12 [Kongliga Vetenskaps-Academiens Handlingar, Stockholm v. 12 (no. 3); ref. 16524] Boraba swamp along Gambia River, western Africa. Syntypes: NRM 11135 (1), 21135 (1, partial). •Synonym of Pollimyrus isidori (Valenciennes 1847) -- (Gosse 1984:116 [ref. 6169], Bigorne in Lévêque et al. 1990:181 [ref. 21589], Lévèque et al. 1991:139 [ref. 31367]). Current status: Synonym of Pollimyrus isidori (Valenciennes 1847). Mormyridae. Habitat: freshwater.

rume, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:248, Pl. 569 [not 535] [Histoire naturelle des poissons v. 19; ref. 4883] Senegal River. Holotype (unique): MNHN A-9626. Type catalog: Bertin 1940:269 [ref. 293]. •Valid as Mormyrus rume Valenciennes 1847 -- (Gosse 1984:105 [ref. 6169], Crawford & Hopkins 1989 [ref. 19510], Lévêque et al. 1989:115 [ref. 26480] dated 1846, Paugy & Bénech 1989:299 [ref. 26478] dated 1846, Bigorne in Lévêque et al. 1990:128 [ref. 21589], Dankwa et al. 1999:14 [ref. 28023], Hopkins et al. 2007:263 [ref. 30019], Kramer 2013:6 [ref. 32485], Skelton 2019:231 [ref. 36564]). Current status: Valid as Mormyrus rume Valenciennes 1847. Mormyridae. Distribution: Africa. Habitat: freshwater.

salahie, Mormyrus Lacepède [B. G. E.] 1803:619, 622 [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] Cairo, Egypt. No types known. •Synonym of Marcusenius cyprinoides (Linnaeus 1758) -- (Gosse 1984:81 [ref. 6169]). Current status: Synonym of Marcusenius cyprinoides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

sanagaensis, Marcusenius Boden [G.], Teugels [G. G.] & Hopkins [C. D.] 1997:1661, Fig. 10 [Journal of Natural History v. 31 (no. 11); ref. 23218] Bankim, Mbam River, 6°05'N, 11°30'E, Cameroon. Holotype: MRAC 93-072-P-0001. Paratypes: MNHN 1978-0398 to 0399 (2); MRAC 73-29-P-618 to 621 (4), 93-015-P-0003 (1), 93-052-P-001 (1), 93-052-P-0002 (1), 93-072-P-0002 (1), 94-022-P-0001 to 0008 (8), 94-049-P-0016 (1), 94-074-P-0038 to 0043 (7). •Valid as Marcusenius sanagaensis Boden, Teugels & Hopkins 1997 -- (Hopkins et al. 2007:283 [ref. 30019], Kramer & Wink 2013:9 [2335] [ref. 32824], Decru et al. 2019:234 [ref. 36749]). Current status: Valid as Marcusenius sanagaensis Boden, Teugels & Hopkins 1997. Mormyridae. Distribution: Sanaga River basin, Cameroon. Habitat: freshwater.

sauvagii, Mormyrus (Petrocephalus) Boulenger [G. A.] 1887:149 [Annals and Magazine of Natural History (Series 5) v. 19 (no. 110) (art. 19); ref. 14472] Lower Congo [no more precise locality]. Holotype (unique): BMNH 1887.1.13.3. Misspelled sauvagei by Pellegrin 1921:635 [ref. 30437]. •Valid as Petrocephalus sauvagii (Boulenger 1887) -- (Gosse 1984:113 [ref. 6169], Bigorne in Lévêque et al. 1990:171 [ref. 21589], Bigorne & Paugy 1991:23 [ref. 20122], Lavoué et al. 2010:29 [ref. 30944], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2233 [ref. 32160], Lavoué 2012:2166 [ref. 32189], Munene et al. 2021:21 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Petrocephalus sauvagii (Boulenger 1887). Mormyridae. Distribution: Central Africa: Congo and Niger river basins. Habitat: freshwater.

schilthuisiae, Gnathonemus Boulenger [G. A.] 1899:73, Pl. 33 (fig. 4) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 4); ref. 549] Kutu, Lake Léopold II; Stanley Pool, Congo River. Syntypes: BMNH, MRAC 663 (1). •Valid as Marcusenius schilthuisiae (Boulenger 1899) -- (Gosse 1984:88 [ref. 6169] as schilhuisiae, Boden et al. 1997:1677 [ref. 23218], Kramer & Wink 2013:9 [2335] [ref. 32824], Decru et al. 2019:233 [ref. 36749], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Marcusenius schilthuisiae (Boulenger 1899). Mormyridae. Distribution: Western-central Africa: middle Congo River basin. Habitat: freshwater.

schoutedeni, Petrocephalus Poll [M.] 1954:56, Fig. 1 [Annales du Musee du Congo (Ser. Zoologie) v. 1; ref. 12662] Yangambi, Congo River, Democratic Republic of Congo. Holotype: MRAC 120045. Paratypes: (50) BMNH 1953.6.24.1 [ex IRSNB] (1); IRSNB 241-247 (3, 1, 3, 5, 4, 1, 11); MRAC 120046-55 (9), 120058 (1), 120059-63 (5), 120064-65 (2), 120066-69 (4), 120070-71 (2). Type catalog: Derijst 1991:62 [ref. 21528]. •Valid as Petrocephalus schoutedeni Poll 1954 -- (Gosse 1984:113 [ref. 6169], Lavoué et al. 2010:44 [ref. 30944], Kramer et al. 2012:2233 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Munene et al. 2021:21 [ref. 39283] as cf. schoutedeni). Current status: Valid as Petrocephalus schoutedeni Poll 1954. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

schoutedeni, Stomatorhinus Poll [M.] 1945:38, Fig. 1 [Revue de Zoologie et de Botanique Africaines v. 39 (no. 1); ref. 13133] Boma, Congo River, Democratic Republic of Congo. Holotype (unique): MRAC 15265. Type catalog: Derijst 1991:66 [ref. 21528]. •Valid as Stomatorhinus schoutedeni Poll 1945 -- (Gosse 1984:122 [ref. 6169], Sullivan & Hopkins 2004:12 [ref. 28082]). Current status: Valid as Stomatorhinus schoutedeni Poll 1945. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

schreyeni, Pollimyrus Poll [M.] 1972:164, Fig. 1 [Revue de Zoologie et de Botanique Africaines v. 85 (nos 1-2); ref. 7637] River 15 kilometers from Boende on Boende-Watsi route, Congo River basin, Democratic Republic of Congo. Holotype: MRAC 174708. Paratypes: MRAC 174709-19 (11), 88293 (1). Type catalog: Derijst 1991:63 [ref. 21528]. •Valid as Pollimyrus schreyeni Poll 1972 -- (Gosse 1984:119 [ref. 6169], Kramer et al. 2013:17 [ref. 33002]). Current status: Valid as Pollimyrus schreyeni Poll 1972. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

senegalensis, Mormyrus Steindachner [F.] 1870:551 [19], Pl. 4 (fig. 1) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 61 (1. Abth.); ref. 18768] Taoué and Dagana, Senegal, western Africa. Syntypes: (several) NMW 55109-10 (3, 2), 82892 (1). On p. 19 of separate. •Valid as Marcusenius senegalensis (Steindachner 1870) -- (Gosse 1984:88 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Bigorne & Paugy 1990:37 [ref. 13599], Lévèque et al. 1991:138 [ref. 31367], Dankwa et al. 1999:15 [ref. 28023], Kramer 2013:125 [ref. 32737], Kramer & Wink 2013:9 [2335] [ref. 32824]). Current status: Valid as Marcusenius senegalensis (Steindachner 1870). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

similis, Petrocephalus Lavoué [S.] 2011:23, Fig. 2 [Zootaxa No. 2934; ref. 31401] Djerem River near Mbakaou Village, 6.21°N, 12.75°E, Sanaga Riber basin, Adamaoua Province, Comeroon. Holotype: CUMV 96318. Paratypes: CUMV 93218 (4), 93219 (3), 93221 (4); MNHN 19789-0720 (1). •Valid as Petrocephalus similis Lavoué 2011. Current status: Valid as Petrocephalus similis Lavoué 2011. Mormyridae. Distribution: Djerem River, Cameroon. Habitat: freshwater.

simus, Petrocephalus Sauvage [H.-E.] 1879:100 [11] [Bulletin de la Société philomathique de Paris (7th Série) v. 3; ref. 3881] Doumé, about 00°51'S, 12°56'E, Ogôoué River, near Lastoursville, Gabon. Syntypes: MNHN A-0892 (2). Type catalog: Bertin 1940:264 [ref. 293], Poll 1948:76 [ref. 31166]. On p. 11 of separate. •Valid as Petrocephalus simus Sauvage 1879 -- (Gosse 1984:113 [ref. 6169], Lévêque et al. 1989:115 [ref. 26480], Paugy et al. 1990:337 [ref. 26477], Kramer & van der Bank 2000:397 [ref. 25762], Lavoué et al. 2004:514 [ref. 27871], Hopkins et al. 2007:243 [ref. 30019], Lavoué et al. 2010:44 [ref. 30944], Kramer et al. 2012:2233 [ref. 32160], Lovoué 2012:2167 [ref. 32189], Skelton 2019:230 [ref. 36564], Fermon et al. 2022:127 [ref. 39448]). Current status: Valid as Petrocephalus simus Sauvage 1879. Mormyridae. Distribution: Western-central Africa: Gabon; Zambia; Angola. Habitat: freshwater.

sirenoides, Mormyrops Boulenger [G. A.] 1898:4, Pl. 1 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] New Antwerp, Upper Congo. Holotype (unique): MRAC 158. •Valid as Mormyrops sirenoides Boulenger 1898 -- (Gosse 1984:97 [ref. 6169], Munene et al. 2021:21 [ref. 39283]). Current status: Valid as Mormyrops sirenoides Boulenger 1898. Mormyridae. Distribution: Central Africa; central and upper Congo River basin. Habitat: freshwater.

smithersi, Marcusenius Määr [A.] 1962:780, Fig. 1 [Occasional Papers of the National Museums of Southern Rhodesia. B, Natural Sciences. v. 3 (no. 26B); ref. 6047] Zambezi River above Kariba Lake, southeastern Africa. Holotype (unique): NMBZ [ex QVMS] 0833. •Valid as Hippopotamyrus smithersi (Määr 1962) -- (Gosse 1984:77 [ref. 6169]). •Synonym of Hippopotamyrus discorhynchus (Peters 1852) -- (Kramer & Swartz 2010:2230 [ref. 30915]). •Synonym of Cyphomyrus discorhynchus (Peters 1852) -- (Kramer & van der Bank 2011:2689 [ref. 31546], Mulelenu et al. 2020:17 [ref. 37340]). Current status: Synonym of Cyphomyrus discorhynchus (Peters 1852). Mormyridae. Habitat: freshwater.

soudanensis, Petrocephalus Bigorne [R.] & Paugy [D.] in Lévêque, Paugy & Teugels 1990:172, Fig. 15.44 [Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Collection Faune tropicale no. XXVIII. v. 1; ref. 21589] Niandan at Loutou, Guinea. Holotype: MNHN 1990-0139. Paratypes: MNHN 1990-0140 (4), 1990-0141 (9). Additional material: BMNH, MNHN, MRAC. First author is R. Bigorne. Appeared first as above, then in Bigorne & Paugy 1991:18, Fig. 12 [ref. 20122]. •Valid as Petrocephalus soudanensis Bigorne & Paugy 1990 -- (Lévèque et al. 1991:139 [ref. 31367], Dankwa et al. 1999:15 [ref. 28023], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2233 [ref. 32160]). Current status: Valid as Petrocephalus soudanensis Bigorne & Paugy 1990. Mormyridae. Distribution: Africa. Habitat: freshwater.

sphekodes, Mormyrops Sauvage [H.-E.] 1879:101 [12] [Bulletin de la Société philomathique de Paris (7th Série) v. 3; ref. 3881] Ogooué River at Doumé, Gabon. Lectotype: MNHN A-0893. Paralectotype: MNHN 1998-1050. Type catalog: Bertin 1940:268 [ref. 293] erroneously as holotype, Poll 1948:76 [ref. 31166] as sphecodes. On p. 12 of separate. Often spelled sphecodes, original was sphekodes. Lectotype selected by Rich et al. 2017:[9, 14] [ref. 35306]. •Valid as Brienomyrus sphecodes (Sauvage 1879) -- (Gosse 1984:65 [ref. 6169]). •Valid as Paramormyrops sphekodes (Sauvage 1879) -- (Hopkins et al. 2007:305 [ref. 30019], Rich et al. 2017:[9, 14] [ref. 35306], Fermon et al. 2022:125 [ref. 39448]). Current status: Valid as Paramormyrops sphekodes (Sauvage 1879). Mormyridae. Distribution: West Africa: Doumé and Sébé Rivers (Gabon) Habitat: freshwater.

squalostoma, Marcusenius Boulenger [G. A.] 1915:162 [Revue de Zoologie Africaine v. 4 (fasc. 2); ref. 15086] Tributary of Lukinda [Lunchinda] River, a tributary of Moero [Mweru] Lake, ca. 8.51°S, 28.96°E, Congo River basin, Zambia. Syntypes: (5) BMNH 1920.5.26.1 (2), MRAC 14352-54 (3). •Valid as Petrocephalus squalostoma (Boulenger 1915) -- (Gosse 1984:114 [ref. 6169], Lavoué et al. 2010:44 [ref. 30944], Kramer et al. 2012:2233, 2245 [ref. 32160]). Current status: Valid as Petrocephalus squalostoma (Boulenger 1915). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

stanleyanus, Mormyrus Boulenger [G. A.] 1897:426 [Annals and Magazine of Natural History (Series 6) v. 20 (no. 119) (art. 50); ref. 14629] Stanley [Boyoma] Falls, Upper Congo River, Democratic Republic of Congo. Holotype (unique): BMNH 1897.9.30.24. •Valid as Marcusenius stanleyanus (Boulenger 1897) -- (Gosse 1984:90 [ref. 6169], De Vos et al. 2001:129, 131 [ref. 26059], Kramer & Wink 2013:9 [2335] [ref. 32824], Skelton 2019:231 [ref. 36564], Munene et al. 2021:20 [ref. 39283], Stiassny et al. 2021:1686 [ref. 39000], Bigirimana et al. 2024:32 [ref. 41336]). Current status: Valid as Marcusenius stanleyanus (Boulenger 1897). Mormyridae. Distribution: Central Africa: central and upper Congo River system (Burundi, Democratic Republic of Congo). Habitat: freshwater.

stappersii, Marcusenius Boulenger [G. A.] 1915:162 [Revue de Zoologie Africaine v. 4 (fasc. 2); ref. 15086] Tributary of Lukinda River. Holotype (unique): MRAC 12689 or 39492. •Valid as Pollimyrus stappersii (Boulenger 1915) -- (Gosse 1984:120 [ref. 6169], Kramer et al. 2013:17 [ref. 33002] as stappersi, Abwe et al. 2023:28 [ref. 39992]). Current status: Valid as Pollimyrus stappersii (Boulenger 1915). Mormyridae. Distribution: Southern-central Africa. Habitat: freshwater.

steindachneri, Petrocephalus Fowler [H. W.] 1958:8 [Notulae Naturae (Philadelphia) No. 310; ref. 1470] Msola Brook, near Kiperege, Ulanga River system, Rufiji basin, Tanzania. Syntypes: (6) NMW 55117-18 (1, 3). Replacement name for Petrocephalus affinis Steindachner 1916, preoccupied by Petrocephalus affinis Sauvage 1878. •Synonym of Petrocephalus catostoma (Günther 1866) -- (Seegers 1996:82 [ref. 23725]). •Valid as Petrocephalus steindachneri Fowler 1958 -- (Gosse 1984:114 [ref. 6169], Kramer et al. 2012:2233, 2246 [ref. 32160]). Replacement Name. Current status: Valid as Petrocephalus steindachneri Fowler 1958. Mormyridae. Distribution: Ulanga River system, Tanzania. Habitat: freshwater.

stuhlmanni, Petrocephalus Boulenger [G. A.] 1909:56, Fig. 41 [Catalogue of the fresh-water fishes of Africa v. 1; ref. 14364] Kingani River, Tanzania. Holotype (unique): BMNH 1907.12.3.1. •Synonym of Petrocephalus catostoma (Günther 1866) -- (Gosse 1984:111 [ref. 6169], Seegers 1996:82 [ref. 23725], Kramer & van der Bank 2000:393 [ref. 25762], Lavoué et al. 2010:51 [ref. 30944], Lavoué et al. 2010:51 [ref. 30944]). •Valid as Petrocephalus stuhlmanni Boulenger 1909 -- (Kramer et al. 2012:2233, 2247 [ref. 32160]). Current status: Valid as Petrocephalus stuhlmanni Boulenger 1909. Mormyridae. Distribution: Kingani River, Tanzania. Habitat: freshwater.

subundulatus, Mormyrus Roberts [T. R.] 1989:52, Fig. 1 [Cybium v. 13 (no. 1); ref. 12832] Mainstream of Bandama River near Station Biologique de Lamto, Côte d'Ivoire. Holotype: MNHN 1987-1610. Paratypes: CAS-SU 63507 (1); MNHN 1963-0241 (1), 1987-1611 (16). •Valid as Mormyrus subundulatus Roberts 1989 -- (Crawford & Hopkins 1989 [ref. 19510], Bigorne in Lévêque et al. 1990:130 [ref. 21589], Kramer 2013:6 [ref. 32485]). Current status: Valid as Mormyrus subundulatus Roberts 1989. Mormyridae. Distribution: Western Africa: Bandama and Tano River basins, Côte d'Ivoire and Ghana. Habitat: freshwater.

sullivani, Petrocephalus Lavoué [S.], Hopkins [C. D.] & Kamdem Toham [A.] 2004:523, Figs. 4D, 5D, 6B [Zoosystema v. 26 (no. 3); ref. 27871] Ogooué River near the park of La Lopé, 00°06'S, 11°35'E [0.1°S, 11.58°E], Gabon. Holotype: MNHN 2003-0619. Paratypes: CUMV 83120 (2), 88992 (6); MNHN 2002-0266 (10); MRAC A3-06-P-1-7 (7). Plus non-type material. •Valid as Petrocephalus sullivani Lavoué, Hopkins & Kamdem Toham 2004 -- (Hopkins et al. 2007:241 [ref. 30019], Lavoué et al. 2010:44 [ref. 30944], Lavoué 2011:23 [ref. 31401], Kramer et al. 2012:2233 [ref. 32160], Fermon et al. 2022:127 [ref. 39448]). Current status: Valid as Petrocephalus sullivani Lavoué, Hopkins & Kamdem Toham 2004. Mormyridae. Distribution: West Africa: Gabon. Habitat: freshwater.

swanenburgi, Mormyrus (Mormyrops) Schilthuis [L.] 1891:91 [Tijdschrift der Nederlandsche Dierkundige Vereeniging, Ser. 2 v. 3; ref. 3925] Kinshasa, Stanley Pool, upper Congo River near Brazzaville, Democratic Republic of Congo. Holotype (unique): BMNH 1899.9.6.17. •Synonym of Mormyrops deliciosus (Leach 1818) -- (Gosse 1984:93 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

szaboi, Hippopotamyrus Kramer [L. B.], van der Bank [F. H.] & Wink [M.] 2004:6, Figs. 1A-B. [Zoologica Scripta v. 33 (no. 1); ref. 27728] Rocks in middle of river at Katima Mulilo, 17°29'30"S, 24°16'18"E, Upper Zambezi River system, Namibia. Holotype: SAIAB 67143. Paratypes: SAIAB 67144-47 (1, 4, 4, 1); ZSM 29765-70 (1, 1, 1, 1, 1, 1), 29771 (1), 29772 (1). Type catalog: Neumann 2011:270 [ref. 31652]. •Valid as Hippopotamyrus szaboi Kramer, van der Bank & Wink 2004 -- (Kramer & Swartz 2010:2222, 2231 [ref. 30915], Marshall 2011:48 [ref. 31755], Kramer & Wink 2013:2344 [ref. 32824], Bruton et al. 2018:33 [ref. 36373], Mutizwa et al. 2021:[3] [ref. 38598]). •Valid as Heteromormyrus szaboi (Kramer, van der Bank & Wink 2004) -- (Sullivan et al. 2022:177 [ref. 39811]). Current status: Valid as Heteromormyrus szaboi (Kramer, van der Bank & Wink 2004). Mormyridae. Distribution: Southern Africa: upper Zambezi River System, Namibia and (?) Zimbabwe. Habitat: freshwater.

tamandua, Mormyrus Günther [A.] 1864:22, Pl. 2 (fig. 1) [Proceedings of the Zoological Society of London 1864 (pt 1) (art. 3) (for 26 Jan. 1864); ref. 13929] Niger, western Africa. Holotype (unique): BMNH 1863.2.13.11. •Valid as Campylomormyrus tamandua (Günther 1864) -- (Gosse 1984:69 [ref. 6169], Bigorne in Lévêque et al. 1990:134 [ref. 21589], Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus tamandua (Günther 1864). Mormyridae. Distribution: Western-central Africa. Habitat: freshwater.

tanensis, Petrocephalus catostoma Whitehead [P. J. P.] & Greenwood [P. H.] 1959:286 [Revue de Zoologie et de Botanique Africaines v. 60 (nos 3-4); ref. 12037] Garsen, Lower Tana River, Kenya. Holotype: BMNH 1963.11.29.1. Paratypes: BMNH 1963.11.19.2-8 (8). •Synonym of Petrocephalus catostoma (Günther 1866), but a valid subspecies tanensis Whitehead & Greenwood 1959 as described -- (Gosse 1984:111 [ref. 6169], Seegers et al. 2003:29 [ref. 28087], Kramer et al. 2012:2233 [ref. 32160]). •Valid as Petrocephalus tanensis Whitehead & Greenwood 1959 -- (Kramer et al. 2012:2247 [as a subspecies on p. 2233] [ref. 32160]). Current status: Valid as Petrocephalus tanensis Whitehead & Greenwood 1959. Mormyridae. Distribution: Tana River, Kenya. Habitat: freshwater.

tanganicanus, Marcusenius Boulenger [G. A.] 1906:545, Pl. 30 (fig. 1) [Transactions of the Zoological Society of London v. 17 (pt 6, no. 1); ref. 573] Lake Tanganyika. Syntypes: BMNH 1906.9.8.3-4 (2) Sumbu, 1906.9.8.5 (1) Msamba. •Synonym of Hippopotamyrus discorhynchus (Peters 1852) -- (Gosse 1984:74 [ref. 6169], Seegers 1996:68 [ref. 23725], Kramer & Swartz 2010:2230 [ref. 30915]). •Synonym of Cyphomyrus discorhynchus (Peteres 1852) -- (Kramer & van der Bank 2011:2689 [ref. 31546], Mulelenu et al. 2020:12 [ref. 37340]). Current status: Synonym of Cyphomyrus discorhynchus (Peters 1852). Mormyridae.

tapirus, Mormyrus Pappenheim [P.] 1905:217 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1905 (no. 8-9); ref. 15371] Lokunje River, Cameroon. Syntypes: (4) BMNH 1907.12.3.3 [ex ZMB] (1), ZMB 14727 (1), 14848 (1), 16297 (1). •Valid as Mormyrus tapirus Pappenheim 1905 -- (Gosse 1984:106 [ref. 6169], Lévêque et al. 1989:115 [ref. 26480], Bigorne in Lévêque et al. 1990:127 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Hopkins et al. 2007:263 [ref. 30019]). Current status: Valid as Mormyrus tapirus Pappenheim 1905. Mormyridae. Distribution: Western Africa. Habitat: freshwater.

tavernei, Brienomyrus Poll [M.] 1972:166, Fig. 2 [Revue de Zoologie et de Botanique Africaines v. 85 (nos 1-2); ref. 7637] Masombwe, Kipepe River, tributary of Tumbwe River, Congo River basin, Democratic Republic of Congo. Holotype: MRAC 79-1-P-137 [ex. Coll. Parc Nat. Upemba]. Paratypes: IRSNB 718 (1); MRAC 85753 (1), 174702-707 (6), 79-1-P-138-140 (3). Type catalog: Derijst 1991:32 [ref. 21528]. •Valid as Brienomyrus tavernei Poll 1972 -- (Gosse 1984:65 [ref. 6169]). •Possibly valid as Paramormyrops tavernei (Poll 1972) -- (Rich et al. 2017:[14] [ref. 35306]). •Valid as Paramormyrops tavernei (Poll 1972) -- (Abwe et al. 2023:28 [ref. 39992]). •Valid as Heteromormyrus tavernei (Poll 1972) -- (Sullivan et al. 2022:177 [ref. 39811]). Current status: Valid as Heteromormyrus tavernei (Poll 1972). Mormyridae. Distribution: Southern-central Africa: Congo River basin. Habitat: freshwater.

tchadensis, Petrocephalus bane Blache [J.] & Miton [F.] 1961:395 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 32 (no. 5) (1960); ref. 7449] Mid Logone at Gamsaye, Chad basin. Holotype: MNHN 1959-0318. Paratypes: CEPFL (35). Type catalog: Blanc 1961:261 [ref. 20870]. •Synonym of Petrocephalus bane (Lacepède 1803), but a valid subspecies as described -- (Gosse 1984:109 [ref. 6169]). •Synonym of Petrocephalus bane (Lacepède 1803) -- (Bigorne in Lévêque et al. 1990:168 [ref. 21589], Kramer et al. 2012:2233 [ref. 32160]). Current status: Synonym of Petrocephalus bane (Lacepède 1803). Mormyridae. Habitat: freshwater.

tenuicauda, Hyperopisus Pellegrin [J.] 1904:312 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 10 (no. 6); ref. 15195] Fort-Archambault [Sarh], Chari River, Chad. Syntypes: MNHN 1904-0111 (1), 1904-0112 (1). Type catalog: Bertin 1940:270 [ref. 293]. •Synonym of Hyperopisus bebe (Lacepède 1803), subspecies occidentalis Günther 1866 -- (Gosse 1984:78 [ref. 6169]). •Synonym of Hyperopisus bebe (Lacepède 1803) -- (Lévèque et al. 1991:138 [ref. 31367]). Current status: Synonym of Hyperopisus bebe (Lacepède 1803). Mormyridae. Habitat: freshwater.

tenuicauda, Mormyrus Steindachner [F.] 1894:69, Pl. 4 (fig. 1) [Notes from the Leyden Museum v. 16 (nos 1-2, art. 1); ref. 4237] Queah and Junk rivers, Liberia. Syntypes: (12) BMNH 1896.2.19.1-2 (2); NMW 55111-12 (3, 1); RMNH 5347 (2), 5355-56 (1, 4). •Synonym of Petrocephalus simus Sauvage 1879 -- (Gosse 1984:114 [ref. 6169]). •Valid as Petrocephalus tenuicauda (Steindachner 1894) -- (Bigorne in Lévêque et al. 1990:174 [ref. 21589], Bigorne & Paugy 1991:24 [ref. 20122], Kramer et al. 2012:2233 [ref. 32160], Pezold et al. 2016:103 [ref. 34870]). Current status: Valid as Petrocephalus tenuicauda (Steindachner 1894). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

tenuirostris, Mormyrus Peters [W. (C. H.)] 1882:73 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1882; ref. 18547] Adi River in Ukamba, East Africa. Holotype (unique): ZMB 11898. •Valid as Mormyrus tenuirostris Peters 1882 -- (Gosse 1984:106 [ref. 6169], Seegers et al. 2003:29 [ref. 28087], Kramer 1913:6 [ref. 32485]). Current status: Valid as Mormyrus tenuirostris Peters 1882. Mormyridae. Distribution: Eastern Africa. Habitat: freshwater.

thomasi, Gnathonemus Boulenger [G. A.] 1916:164, Fig. 108 [Catalogue of the fresh-water fishes of Africa v. 4; ref. 585] Northern Sherbo District, Sierra Leone. Holotype (unique): BMNH 1915.4.13.5. •Valid as Marcusenius thomasi (Boulenger 1916) -- (Gosse 1984:90 [ref. 6169], Lévêque et al. 1989:114 [ref. 26480], Bigorne & Paugy 1990:38 [ref. 13599], Bigorne in Lévêque et al. 1990:143 [ref. 21589], Paugy et al. 1990:336 [ref. 26477], Kramer & Wink 2013:9 [2335] [ref. 32824]). Current status: Valid as Marcusenius thomasi (Boulenger 1916). Mormyridae. Distribution: Western Africa. Habitat: freshwater, brackish.

thomasi, Mormyrus Pellegrin [J.] 1939:370 [Bulletin de la Société Zoologique de France v. 63 (no. 7) [for 1938]; ref. 17213] French Congo. Holotype (unique): MNHN 1938-0029. Type catalog: Bertin 1940:270 [ref. 293], Poll 1948:77 [ref. 31166]. •Valid as Mormyrus thomasi Pellegrin 1939 -- (Gosse 1984:106 [ref. 6169]). Current status: Valid as Mormyrus thomasi Pellegrin 1939. Mormyridae. Distribution: Central Africa. Habitat: freshwater.

tshokwe, Gnathonemus Poll [M.] 1967:83, Fig. 29 [Publicações Culturais, Companhia de Diamantes de Angola (DIAMANG), Lisboa No. 75; ref. 3528] Dundo, Luachimo River, Angola. Holotype (unique): MRAC 164319 [ex MD 6067]. Type catalog: Derijst 1991:42 [ref. 21528]. •Valid as Campylomormyrus tshokwe (Poll 1967) -- (Gosse 1984:70 [ref. 6169], Skelton 2019:231 [ref. 36564], Kiselkewa et al. 2020:[7] 706 [ref. 38315] as aff. tshokwe, Munene et al. 2021:20 [ref. 39283]). Current status: Valid as Campylomormyrus tshokwe (Poll 1967). Mormyridae. Distribution: West Africa: southern Congo River basin (Congo); Luachimo and Cuango River basins, Angola. Habitat: freshwater.

tubirostris, Mormyrops Boulenger [G. A.] in Pellegrin 1900:350 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 6 (no. 7); ref. 6253] Not available, name mentioned in synonymy of Mormyrops boulengeri Pellegrin 1900:349 [ref. 6253]. Nomen Nudum. Mormyridae.

tuckeyi, Mormyrus Valenciennes [A.] in Cuvier & Valenciennes 1847:263 [Histoire naturelle des poissons v. 19; ref. 4883] Democratic Republic of Congo. •Synonym of Mormyrops deliciosus (Leach 1818) -- (Gosse 1984:93 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

tumifrons, Marcusenius Boulenger [G. A.] 1902:24, Pl. 7 (fig. 3) [Annales du Musee du Congo (Ser. Zoologie) v. 2 (fasc. 2); ref. 562] Ubangi River at Banzyville, Democratic Republic of Congo, about 4°18'N, 21°11'E. Holotype (unique): MRAC 1160. •Valid as Pollimyrus tumifrons (Boulenger 1902) -- (Gosse 1984:120 [ref. 6169], Kramer et al. 2013:17 [ref. 32002], Skelton 2019:231 [ref. 36564]). Current status: Valid as Pollimyrus tumifrons (Boulenger 1902). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

ussheri, Mormyrus Günther [A.] 1867:116 [7] [Annals and Magazine of Natural History (Series 3) v. 20 (no. 116) (art. 15); ref. 1989] Bossumprah River, Ghana. Syntypes: (2) BMNH 1867.4.12.8 (1). On p. 7 of separate. •Valid as Marcusenius ussheri (Günther 1867) -- (Gosse 1984:90 [ref. 6169], Bigorne & Paugy 1990:38 [ref. 13599], Bigorne in Lévêque et al. 1990:146 [ref. 21589], Paugy et al. 1990:336 [ref. 26477], Dankwa et al. 1999:15 [ref. 28023], Kramer 2013:125 [ref. 32737], Kramer & Wink 2013:9 [2335] [ref. 32824]). Current status: Valid as Marcusenius ussheri (Günther 1867). Mormyridae. Distribution: Western Africa. Habitat: freshwater.

vaillanti, Mormyrops Pellegrin [J.] 1899:362 [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 5 (no. 7); ref. 18067] Diélé, Alima River, Congo. Syntypes: MNHN 1886-0310 and 0311 (2). Type catalog: Bertin 1940:262 [ref. 293]. •Synonym of Mormyrops nigricans Boulenger 1899 -- (Gosse 1984:96 [ref. 6169]) Current status: Synonym of Mormyrops nigricans Boulenger 1899. Mormyridae. Habitat: freshwater.

valentini, Petrocephalus Lavoué [S.], Sullivan [J. P.] & Arnegard [M. E.] 2010:13, Fig. 5 [Zootaxa No. 2600; ref. 30944] Small channel around island in Lékoli River, Cuvette-Ouest, Odzala National Park, 0.62°N, 14.93°E, Congo River basin, Democratic Republic of Congo. Holotype: CUMV 88177. Paratypes: AMNH and CUMV. Plus non-type specimens. •Valid as Petrocephalus valentini Lavoué, Sullivan & Arnegard 2010 -- (Lavoué 2011:26 [ref. 31401], Lovoué 2012:2167 [ref. 32189], Stiassny et al. 2021:1686 [ref. 39000]). Current status: Valid as Petrocephalus valentini Lavoué, Sullivan & Arnegard 2010. Mormyridae. Distribution: Western-central Africa: Congo River basin (Democratic Republic of Congo). Habitat: freshwater.

vanderbilti, Petrocephalus Fowler [H. W.] 1936:246, Fig. 2 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 88; ref. 1424] Fort Sibut, Central African Republic [Ubangi-Shari]. Holotype: ANSP 65499 [not 65599]. Paratypes: ANSP 65500-02 [not 65600-03] (3), MCZ [ex ANSP 65503] (1). Type catalog: Böhlke 1984:128 [ref. 13621]. •Synonym of Pollimyrus isidori (Valenciennes 1847), subspecies fasciaticeps (Boulenger 1920) -- (Gosse 1984:116 [ref. 6169]). •Synonym of Pollimyrus isidori (Valenciennes 1847) -- (Lavoué et al. 2010:43 [ref. 30944], Kramer et al. 2012:2233 [ref. 32160]). Current status: Synonym of Pollimyrus isidori (Valenciennes 1847). Mormyridae. Habitat: freshwater.

verheyenorum, Marcusenius Mambo Baba [T.], Kisekelwa [T.], Mizani [C. D.], Decru [E.] & Vreven [E. J.] 2020:1115, Fig. 7 [Journal of Fish Biology v. 96 (no. 5); ref. 37385] Bakeledjo River at Apana, a left bank tributary of the Nepoko River, Okapi Wildlife Reserve, Democratic Republic of Congo, 2°28'09"N, 28°12'09"E. Holotype: MRAC 2015-040-P-0020. Paratypes: AMNH, BMNH 2019.9.13.1 (1), MRAC, ZSM. Plus additional non-type material. •Valid as Marcusenius verheyenorum Mambo Baba, Kisekelwa, Mizani, Decru & Vreven 2020. Current status: Valid as Marcusenius verheyenorum Mambo Baba, Kisekelwa, Mizani, Decru & Vreven 2020. Mormyridae. Distribution: Middle Congo River basin. Habitat: freshwater.

victoriae, Gnathonemus Worthington [E. B.] 1929:429, Fig. 1 [Proceedings of the Zoological Society of London 1929 (Pt 3, no. 29) (art. 34); ref. 16064] Lakes Victoria, Kioga, and Kwania; Nile River, East Africa. Syntypes: (19) BMNH 1928.1.23.1 (1) Entebbe, Lake Victoria, 1928.5.24.3-6 (4) Lake Victoria, 1929.1.24.20-23 (3?) Lake Kioga. •Valid as Marcusenius victoriae (Worthington 1929) -- (Gosse 1984:90 [ref. 6169], Seegers et al. 2003:29 [ref. 28087], Kramer & Wink 2013:9 [2335] [ref. 32824], Akoth et al. 2023:7 [ref. 40069]). Current status: Valid as Marcusenius victoriae (Worthington 1929). Mormyridae. Distribution: East Africa. Habitat: freshwater.

voltae, Mormyrops anguilloides Roman [B.] 1966:36, Pl. 6 (fig. 11) [Annales, Musée Royal de l'Afrique Centrale, Tervuren, Série in 8o, Sciences Zoologiques No. 150; ref. 9061] Kou River, tributary of the Black Volta, 30 kilometers north of Bobo-Dioulasso, West Africa. Holotype (unique): MRAC 140928. •Synonym of Mormyrops anguilloides (Linnaeus 1758) -- (Gosse 1984:91 [ref. 6169], Bigorne 1987:146 [ref. 20556], Paugy & Bénech 1989:299 [ref. 26478], Bigorne in Lévêque et al. 1990:157 [ref. 21589], Lévèque et al. 1991:138 [ref. 31367]). •Synonym of Mormyrops anguilloides (Linnaeus 1758), but a valid subspecies as described -- (Kramer 2013:8 [ref. 32882]). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

walkeri, Mormyrus Günther [A.] 1867:116 [8], Pl. 3 (fig. C) [Annals and Magazine of Natural History (Series 3) v. 20 (no. 116) (art. 15); ref. 1989] Ogowe River, Gabon. Syntypes: BMNH 1867.5.3.15-16 (2). •Valid as Stomatorhinus walkeri (Günther 1867) -- (Gosse 1984:122 [ref. 6169], Sullivan & Hopkins 2004:2 [ref. 28082], Hopkins et al. 2007:271 [ref. 30019], Fermon et al. 2022:126 [ref. 39448]). Current status: Valid as Stomatorhinus walkeri (Günther 1867). Mormyridae. Distribution: West Africa: Gabon. Habitat: freshwater.

wamuinii, Marcusenius Decru [E.], Sullivan [J. P.] & Vreven [E. J.] 2019:229, Fig. 5 [Ichthyological Exploration of Freshwaters v. 29 (no. 3) IEF-1090; ref. 36749] Muila Mbulumuki, affluent of the Congo River, Kimuabi village, zone A, Mangroves National Park, lower Congo basin, Democratic Republic of Congo, 6°00'04"S, 12°33'01"E. Holotype: MRAC 2015-029-P- 0001. Paratypes: MRAC. Plus additional non-type material. •Valid as Marcusenius wamuinii Decru, Sullivan & Vreven 2019. Current status: Valid as Marcusenius wamuinii Decru, Sullivan & Vreven 2019. Mormyridae. Distribution: Mangroves National Park, lower Congo basin, Democratic Republic of Congo. Habitat: freshwater.

weeksii, Marcusenius Boulenger [G. A.] 1902:24, Pl. 7 (fig. 2) [Annales du Musee du Congo (Ser. Zoologie) v. 2 (fasc. 2); ref. 562] Monsembé, Upper Congo River. Holotype (unique): BMNH 1901.12.21.5. •Valid as Hippopotamyrus weeksii (Boulenger 1902) -- (Gosse 1984:77 [ref. 6169], Kramer & Swartz 2010:2230 [ref. 30915]). •Valid as Cyphomyrus weeksii (Boulenger 1902) -- (Sullivan et al. 2022:187 [ref. 39811]). Current status: Valid as Cyphomyrus weeksii (Boulenger 1902). Mormyridae. Distribution: Central Africa: Congo River basin. Habitat: freshwater.

wesselsi, Petrocephalus Kramer [L. B.] & van der Bank [F. H.] 2000:398, Fig. 1 [Environmental Biology of Fishes v. 59 (no. 4); ref. 25762] Sabie River, bridge near Lower Sabie tourist camp. 25°07'S, 31°55'E, Kruger National Park, South Africa. Holotype: ZSM 28556. Paratypes: SAIAB [formerly RUSI] 54449 (13); SMF 28266 (13); ZSM 28554 (1), 28555 (1), 28557-66 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1). Plus non-type material. Original not seen. •Valid as Petrocephalus wesselsi Kramer & van der Bank 2000 -- (Skelton 2001:368 [ref. 27406], Marshall 2011:55 [ref. 31755], Kramer et al. 2012:2233, 2249 [ref. 32160]). Current status: Valid as Petrocephalus wesselsi Kramer & van der Bank 2000. Mormyridae. Distribution: Sabie River, Kruger National Park, South Africa, Southern Africa. Habitat: freshwater.

wilverthi, Marcusenius Boulenger [G. A.] 1898:8, Pl. 4 (fig. 1) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 1); ref. 542] Matadi and Upoto, Democratic Republic of Congo. Syntypes: BMNH 1898.11.12.15 (1) Matadi, 1898.11.12.16 (1) Upoto; MRAC 47 (1), 49 (1), 133 (1). •Valid as Hippopotamyrus wilverthi (Boulenger 1898) -- (Gosse 1984:77 [ref. 6169], Kramer & Swartz 2010:2223 [ref. 30915]). •Valid as Cyphomyrus wilverthi (Boulenger 1898) -- (Myers 1960:125 [ref. 3128], Lavoué et al. 2003:288 [ref. 29517], Kramer & van der Bank 2011:2688 [ref. 31546], Mulelenu et al. 2020:17 [ref. 37340]). Current status: Valid as Cyphomyrus wilverthi (Boulenger 1898). Mormyridae. Distribution: Central Africa. Habitat: freshwater.

zakoni, Petrocephalus Lavoué [S.], Sullivan [J. P.] & Arnegard [M. E.] 2010:9, Fig. 4 [Zootaxa No. 2600; ref. 30944] Small channel around island in Lékoli River, Odzala National Park, 0.62°N, 14.95°E, Congo River basin, Central African Republic. Holotype: CUMV 88101. Paratypes: AMNH and CUMV. Plus non-type specimens. •Valid as Petrocephalus zakoni Lavoué, Sullivan & Arnegard 2010 -- (Lavoué 2011:26 [ref. 31401], Lavoué 2012:2167 [ref. 32189], Lavoué & Sullavan 2014:49 [ref. 33262], Lavoué 2016:327 [ref. 34484]). Current status: Valid as Petrocephalus zakoni Lavoué, Sullivan & Arnegard 2010. Mormyridae. Distribution: Congo River basin, Central African Republic. Habitat: freshwater.

zambanenje, Mormyrus Peters [W. (C. H.)] 1852:275 [Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1852; ref. 18539] Zambezi & Licuare River, Mozambique. Syntypes: ZMB 3679-81 (1, 1, 1), 6616 (1) Also in Peters 1868:88, Pl. 15 (fig. 2) [ref. 3440] as Mormyrus (Mormyrops) zambanenje. •Synonym of Mormyrops deliciosus (Leach 1818) -- (Gosse 1984:93 [ref. 6169]). •Synonym of Mormyrops anguilloides (Linnaeus 1758). Current status: Synonym of Mormyrops anguilloides (Linnaeus 1758). Mormyridae. Habitat: freshwater.

zanclirostris, Mormyrus Günther [A.] 1867:115 [6], Pl. 2 (fig. B) [Annals and Magazine of Natural History (Series 3) v. 20 (no. 116) (art. 15); ref. 1989] Gabon. Syntypes: BMNH 1867.5.3.11-12 (2), RMNH 5250 (1). On p. 6 of separate. •Valid as Oxymormyrus zanclirostris (Günther 1867) -- (Poll & Gosse 1995:133 [ref. 24781] with genus as Oxymyrus). •Valid as Oxymormyrus zanclistius (Günther 1867) -- (Poll & Gosse 1995:133 [ref. 24781] with genus misspelled Oxymyrus). •Valid as Mormyrops zanclirostris (Günther 1867) -- (Gosse 1984:97 [ref. 6169], Hopkins et al. 2007:251 [ref. 30019], Fermon et al. 2022:124 [ref. 39448]). Current status: Valid as Mormyrops zanclirostris (Günther 1867). Mormyridae. Distribution: Western and central Africa: Gabon, and Congo River basin. Habitat: freshwater.