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 Bythitidae: [ 149 ] records

acutus, Pseudonus Garman [S.] 1899:169, Pl. 39 (fig. 1) [Memoirs of the Museum of Comparative Zoology v. 24; ref. 1540] Off Galápagos Islands, 0°04'S, 90°24'30"W, Albatross station 3407, depth 885 fathoms. Holotype (unique): MCZ 28630. •Valid as Pseudonus acutus Garman 1899 -- (Nielsen & Cohen in Nielsen et al. 1999:108 [ref. 24448], Castellanos-Galindo et al. 2006:199 [ref. 28944], McCosker & Rosenblatt 2010:190 [ref. 30957], Nielsen 2011:64 [ref. 31293], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Grove et al. 2022:18 [ref. 41326]). Current status: Valid as Pseudonus acutus Garman 1899. Bythitidae. Distribution: Eastern Pacific: Panama south to Peru, including Galapagos Islands (Ecuador). Habitat: marine.

adipatus, Leucobrotula Koefoed [E.] 1952:20, Pl. 2 (fig. E) [Scientific Results of the Michael Sars North Atlantic Deep-Sea Expedition 1910 v. 4 (pt 2, no. 2); ref. 2652] North Atlantic, 48°29'N, 13°55'W, station 92, 1500 meters of wire out. Holotype (unique): ZMUB 4483. Type catalog: Frøiland 1979:150 [ref. 21547]. •Valid as Leucobrotula adipata Koefoed 1952 -- (Nielsen 1973:548 [ref. 6885], Nielsen in Whitehead et al. 1986:1151 [ref. 13677], Nielsen et al. 1990:437 [ref. 19090], Santos et al. 1997:54 [ref. 23531], Arruda 1997:108 [ref. 24952], Nielsen in Carpenter & De Angelis 2016:2763 [ref. 34618], Carneiro et al. 2019:161 [ref. 37250], Sutton et al. 2020:251 [ref. 37832]). Current status: Valid as Leucobrotula adipata Koefoed 1952. Bythitidae. Distribution: Northeastern Atlantic. Habitat: marine.

affinis, Barathronus Brauer [A.] 1906:306 [Die Tiefsee-Fische v. 15; ref. 632] North of Chagos Archipelago, Indian Ocean, 1°57'S, 73°19'01"E, depth 2919 meters. Holotype (unique): ZMB 17700. •Valid as Barathronus affinis Brauer 1906 -- (Nielsen 1969:48 [ref. 3195], Cohen & Nielsen 1978:62 [ref. 881], Okiyama & Kato 1997:224 [ref. 22940], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Nielsen et al. 2015:58 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2019:234 [ref. 36994]). Current status: Valid as Barathronus affinis Brauer 1906. Bythitidae. Distribution: Indian Ocean. Habitat: marine.

alcockii, Diplacanthopoma Goode [G. B.] & Bean [T. H.] 1896:528 [Special Bulletin U. S. National Museum No. 2; ref. 1848] Andaman sea, 7.5 miles east of North Cinque Island, depth 490 fathoms. Based on Diplacanthopoma brachysoma of Alcock 1889:385 [ref. 81] (not of Günther) as mentioned on p. 319 in main text for ref. 1848. Diplacanthopoma alcockii Goode & Bean is a nomen nudum as there was no description in Alcock (Cohen & Nielsen 2002:15 [ref. 26526]); specimen apparently lost. •Uncertain as Diplacanthopoma alcockii Goode & Bean 1896 -- (Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], Cohen & Nielsen 2002:15 [ref. 26526], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Nomen Nudum. Current status: Synonym of Diplacanthopoma. Bythitidae.

algrahami, Barathronus Nielsen [J. G.], Pogonoski [J. J.] & Appleyard [S. A.] 2019:560, Figs. 3-5 [Zootaxa 4564 (no. 2); ref. 36568] West of Cape Martin, South Australia, 37°27.30'S, 138°38.28'E, depth 1300-1230 meters. Holotype: CSIRO H 1932-01. Paratypes: ASIZ. •Valid as Barathronus algrahami Nielsen, Pogonoski & Appleyard 2019 -- (Nielsen 2019:234 [ref. 36994]). Current status: Valid as Barathronus algrahami Nielsen, Pogonoski & Appleyard 2019. Bythitidae. Distribution: Western Pacific: off South Australia, eastern Taiwan and the Philippines. Habitat: marine.

alleni, Pteridium Byrne [L. W.] 1906:448, Fig. [Annals and Magazine of Natural History (Series 7) v. 18 (no. 108); ref. 15653] Mouth of English Channel, near La Chapelle Bank, depth about 450 fathoms. Holotype (unique): BMNH 1907.6.20.21. •Valid as Cataetyx alleni (Byrne 1906) -- (Nielsen 1973:550 [ref. 6885], Cohen & Nielsen 1978:47 [ref. 881], Nielsen in Whitehead et al. 1986:1155 [ref. 13677], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Carrassón & Matallanas 2002:417 [ref. 26676], Balushkin & Prokofiev 2005:557 [ref. 28326], Prokofiev 2005:121 [ref. 34466], Lipej & Dulčić 2010:32 [ref. 36649], Bañón et al. 2016:317 [ref. 34397], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Carneiro et al. 2019:160 [ref. 37250], Bañón et al. 2020:[1] [ref. 37645], Kovačić et al. 2020:20 [ref. 37519], Bañón & Maño 2021:62 [ref. 38883], Kovačić et al. 2021:32 [ref. 39014]). Current status: Valid as Cataetyx alleni (Byrne 1906). Bythitidae. Distribution: Western Mediterranean Sea; eastern Atlantic: Porcupine Bank (southwest of Ireland) and English Channel south to northern Morocco. Habitat: marine.

alphacrucis, Sciadonus Melo [M. R. S. de], Gomes [A. A.], Møller [P. R.] & Nielsen [J. G.] 2021:2, Figs. 1-8 [Deep-Sea Research Part I: Oceanographic Research Papers v. 180 [for 2022]; ref. 38956] Continental slope off Ilhabela, São Paulo State, southeastern Brazil, western South Atlantic, 24°53'55.80"S, 44°24'13.80"W, depth 794 meters. Holotype: MZUSP 125949. Paratype: MZUSP 125950 (1). •Valid as Sciadonus alphacrucis Melo, Gomes, Møller & Nielsen 2021 -- (Júnior et al. 2024:[2] [ref. 41362]). Current status: Valid as Sciadonus alphacrucis Melo, Gomes, Møller & Nielsen 2021. Bythitidae. Distribution: Southwestern Atlantic: Santa Catarina and São Paulo (Brazil). Habitat: marine.

andersoni, Microbrotula Schwarzhans [W.] & Nielsen [J. G.] 2011:151, Figs. 1A, 2A-D, 10 [The Beagle, Records of the Museums and Art Galleries of the Northern Territory v. 27; ref. 31714] Christmas Island (Indian Ocean), Ethel Beach, 10°29'S, 105°40'E, depth 40-45 meters. Holotype (unique): WAM P.26084-004. •Valid as Microbrotula andersoni Schwarzhans & Nielsen 2011 -- (Allen & Erdmann 2012:1198 [ref. 31980], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Allen & Erdmann 2024:154 [ref. 40796]). Current status: Valid as Microbrotula andersoni Schwarzhans & Nielsen 2011. Bythitidae. Distribution: Eastern Indian Ocean: Christmas Island (Australia) endemic. Habitat: marine.

angustus, Timorichthys Nielsen [J. G.], Okamoto [M.] & Schwarzhans [W.] 2013:3, Figs. 1-3 [Ichthyological Research v. 60 (no. 3); ref. 32722] East China Sea, Japan, 31°09.13'N. 126°39.87'E to 31°08.87'N, 126°38.12'E, depth 94-95 meters. Holotype (unique): NSMT-P 110598. •Valid as Timorichthys angustus Nielsen, Okamoto & Schwarzhans 2013 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Timorichthys angustus Nielsen, Okamoto & Schwarzhans 2013. Bythitidae. Distribution: East China Sea: Japan. Habitat: marine.

apoda, Bellottia Giglioli [E. H.] 1883:399 [Zoologischer Anzeiger v. 6 (no. 144); ref. 1619] Gulf of Naples, Italy, Mediterranean Sea. Lectotype: MZUF 5668 [ex MZUF 2176]. Paralectotypes: (4) MZUF 5669 (1). Type catalog: Vanni 1991:224 [ref. 20099]. Lectotype selected by Nielsen & Cohen 1968:102 [ref. 21835]. •Valid as Bellottia apoda Giglioli 1883 -- (Nielsen & Cohen 1968:99 [ref. 21835], Nielsen 1973:549 [ref. 6885], Allué 1984:41 [ref. 41006], Nielsen in Whitehead et al. 1986:1153 [ref. 13677], Nielsen 1990:574 [ref. 16246], De Ranieri & Sbrana 1992:177 [ref. 22393], Gramitto & Coen 1997:163 [ref. 23096], Nielsen & Cohen in Nielsen et al. 1999:97 [ref. 24448], Kaya & Bilecenoğlu 2000:567 [ref. 25011], Bilecenoğlu et al. 2002:55 [ref. 26753], Nielsen 2003:974 [ref. 27009], McEachran & Fechhelm 2005:18 [ref. 28815] [is robusta], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Fricke et al. 2007:66 [ref. 29533], Nielsen & Møller 2008:34 [ref. 29803], Nielsen et al. 2009:53 [ref. 30092], Lipej & Dulčić 2010:32 [ref. 36649], Fernández-Zapico et al. 2013:195 [ref. 32657], Goren & Galil 2015:510 [ref. 33910], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Carneiro et al. 2019:160 [ref. 37250], Kovačić et al. 2020:20 [ref. 37519], Kovačić et al. 2021:32 [ref. 39014], Domenichetti et al. in Digenis et al. 2024:101 [ref. 40958]). Current status: Valid as Bellottia apoda Giglioli 1883. Bythitidae. Distribution: Mediterranean Sea; eastern Atlantic: Ireland (Porcupine Bank) south to Portugal, including Madeira. Habitat: marine.

arafurensis, Hastatobythites Machida [Y.] 1997:386, Figs. 1-2 [Ichthyological Research v. 44 (no. 4); ref. 23362] North-northeast of Maney Shoal, 9°18'S, 133°25'E, Arafura Sea, depth 146 meters. Holotype: NTM S.12904-011. Paratypes: NTM S.12904-018 (1). •Valid as Hastatobythites arafurensis Machida 1997 -- (Nielsen & Cohen in Nielsen et al. 1999:105 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Hoese & Gates 2006:573 [ref. 28997], Nielsen et al. 2012:4 [ref. 32315], Larson et al. 2013:50 [ref. 32988], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Hastatobythites arafurensis Machida 1997. Bythitidae. Distribution: Western Pacific, Arafura Sea (two specimens). Habitat: marine.

armiger, Xenobythites Smith [H. M.] & Radcliffe [L.] in Radcliffe 1913:173, Pl. 16 (fig. 4) [Proceedings of the United States National Museum v. 44 (no. 1948); ref. 3579] Macajalar Bay, Mindanao, 8°35'30"N, 124°36'00"E, Philippines, Albatross station 5504, depth 200 fathoms. Holotype: USNM 74153. Paratypes: USNM 99222 (1). •Valid as Bellottia armiger (Smith & Radcliffe 1913) -- (Nielsen & Cohen in Nielsen et al. 1999:97 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Nielsen & Møller 2008:34 [ref. 29803], Nielsen et al. 2009:45 [ref. 30092], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Bellottia armiger (Smith & Radcliffe 1913). Bythitidae. Distribution: Western Pacific: Philippines [one specimen]. Habitat: marine.

ater, Oligopus Risso [A.] 1810:142, Pl. 11 (fig. 41) [Ichthyologie de Nice; ref. 3755] Gulf of Saint-Hospice, Nice, France, northwestern Mediterranean Sea. No types known. •Valid as Oligopus ater Risso 1810 -- (Nielsen 1973:552 [ref. 6885], Cohen & Nielsen 1978:49 [ref. 881], Nielsen in Whitehead et al. 1986:1152 [ref. 13677], Arruda 1997:109 [ref. 24952]) but see generic account of Oligopus and Grammonus, Lipej & Dulčić 2010:32 [ref. 36649]. •Valid as Grammonus ater (Risso 1810) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Nielsen & Cohen 2004:85 [ref. 28073], Nielsen 2007:375 [ref. 29358], Randall & Hughes 2008:143 [ref. 29910], Nielsen & Prokofiev 2010:189 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Carneiro et al. 2019:161 [ref. 37250], Kovačić et al. 2020:20 [ref. 37519], Iglésias et al. 2021:171 [ref. 38818], Kovačić et al. 2021:32 [ref. 39014], Ragkousis et al. 2021:11 [ref. 38358], Borg et al. 2022:218 [ref. 39630], Digenis & Navarro-Barranco in Digenis et al. 2024:104 [ref. 40958]). Current status: Valid as Grammonus ater (Risso 1810). Bythitidae. Distribution: Mediterranean Sea endemic. Habitat: marine.

beeblebroxi, Bidenichthys Paulin [C. D.] 1995:255, Fig. 3 [Journal of Natural History v. 29 (no. 1); ref. 21619] Hinemoa Island, Three Kings Islands, 34°10.8'S, 172°02.6'E, depth 30 meters. Holotype: NMNZ P.18415. Paratypes: NMNZ P.3746 (1), P.15234 (7), P.18300 (11), P.18446 (1), P.21090 (3), P.21652 (3), P.24684 (2), P.24700 (3), P.25679 (3), P.28300 (6), P.28488 (2). •Valid as Bidenichthys beeblebroxi Paulin 1995 -- (Nielsen & Cohen in Nielsen et al. 1999:118 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Synonym of Bidenichthys consobrinus (Hutton 1876) -- (Møller & Nielsen 2015:723 [ref. 34260], Møller et al. 2022:3 [ref. 38861]). Current status: Synonym of Bidenichthys consobrinus (Hutton 1876). Bythitidae. Habitat: marine.

bentleyi, Microbrotula Anderson [M. E.] 2005:36, Fig. 1 [Zootaxa No. 1006; ref. 28240] Aliwal Shoal at Eelskin, 30°15.0'S, 30°49.0'E, South Africa, southwestern Indian Ocean. Holotype: SAIAB [formerly RUSI] 56261. Paratypes: BPBM 37875 (1); USNM 227220 (2), 227226 (2). •Valid as Microbrotula bentleyi Anderson 2005 -- (Anderson 2007:7 [ref. 29164], Schwarzhans & Nielsen 2011:153 [ref. 31714], Allen & Erdmann 2012:137 [ref. 31980], Schwarzhans & Nielsen 2012:74 [ref. 32349], Møller et al. 2016:Appendix A [ref. 34432], Golani & Fricke 2018:40 [ref. 36273], Anderson & Cohen 2022:265 [ref. 39707], Allen & Erdmann 2024:154 [ref. 40796]). Current status: Valid as Microbrotula bentleyi Anderson 2005. Bythitidae. Distribution: Red Sea; Indo-West Pacific: KwaZulu-Natal (South Africa) and East Africa east to Philippines, south to Queensland (Australia). Habitat: marine.

bicolor, Barathronus Goode [G. B.] & Bean [T. H.] 1886:164 [Bulletin of the Museum of Comparative Zoology v. 12 (no. 5); ref. 1844] Off Guadeloupe Island, West Indies, depth 769 fathoms [16°03'10"N, 61°52'20"W]. Holotype (unique): MCZ 28077. •Questionably a valid South African species -- (Nielsen 1986:357 [ref. 5699]). •Valid as Barathronus bicolor Goode & Bean 1886 -- (Nielsen 1969:31 [ref. 3195], Nielsen & Eagle 1974:1071 [ref. 7525], Cohen & Nielsen 1978:62 [ref. 881], Miyake & Arai in Uyeno et al. 1983:236 [ref. 14275], McEachran & Fechhelm 1998:740 [ref. 23897], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Figueiredo & Menezes in Menezes et al. 2003:60 [ref. 27192], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:288 [ref. 28946], Franco et al. 2007:911 [ref. 29254], Costa & Mincarone 2010:342 [ref. 37483], Nielsen et al. 2015:58 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2019:237 [ref. 36994], Page et al. 2023:110 [ref. 40505]). Current status: Valid as Barathronus bicolor Goode & Bean 1886. Bythitidae. Distribution: Western Atlantic: from Cape Fear south to off Rio de Janeiro (Brazil). Habitat: marine.

bispinosus, Tuamotuichthys Møller [P. R.], Schwarzhans [W.] & Nielsen [J. G.] 2004:149, Figs. 2-3 [Ichthyological Research v. 51 (no. 2); ref. 28013] Morane Atoll, Tuamotu Archipelago, 23°08'43"S, 137°09'19"W, depth 536 meters. Holotype (unique): BPBM 37130. •Valid as Tuamotuichthys bispinosus Møller, Schwarzhans & Nielsen 2004 -- (Nielsen 2006:169 [ref. 29169], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Tuamotuichthys bispinosus Møller, Schwarzhans & Nielsen 2004. Bythitidae. Distribution: South Pacific: Tuamotu Archipelago. Habitat: marine.

bolini, Aphyonus Nielsen [J. G.] 1974:179, Fig. 1 [Steenstrupia v. 3 (no. 16); ref. 7526] South China Sea, 15°38'N, 111°54'E, depth 1234-1264 meters. Holotype (unique): CAS 30357. •Valid as Aphyonus bolini Nielsen 1974 -- (Cohen & Nielsen 1978:61 [ref. 881], Nielsen 1997:78 [ref. 23255], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Fricke et al. 2011:367 [ref. 31242], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Paraphyonus bolini (Nielsen 1974) -- (Nielsen 2015:329 [ref. 34016], Fricke et al. 2018:85 [ref. 35805], Nielsen et al. 2019:566 [ref. 36568]). Current status: Valid as Paraphyonus bolini (Nielsen 1974). Bythitidae. Distribution: Widespread in Indo-West Pacific (Madagascar, South China Sea, Vanuatu and Australia). Habitat: marine.

brachysoma, Diplacanthopoma Günther [A.] 1887:115, Pl. 23 (fig. C) [Report on the Scientific Results of the Voyage of H. M. S. Challenger v. 22 (pt 57); ref. 2013] Off Pernambuco, Brazil, Challenger station 122, depth 350 fathoms. Holotype (unique): BMNH 1887.12.9.54. •Valid as Diplacanthopoma brachysoma Günther 1887 -- (McEachran & Fechhelm 1998:744 [ref. 23897], Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], Menezes & Figueiredo in Menezes et al. 2003:60 [ref. 27192], Moore et al. 2003:208 [ref. 27076], Nielsen 2003:974 [ref. 27009], Garrido-Linares & Acero P. 2006:289, 296 [ref. 28946], Mincarone et al. 2008:57 [ref. 29626], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Klautau et al. 2020:8 [ref. 37903], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Diplacanthopoma brachysoma Günther 1887. Bythitidae. Distribution: Western Atlantic. Habitat: marine.

brayae, Saccogaster Nielsen [J. G.], Schwarzhans [W.] & Cohen [D. M.] 2012:7, Fig. 3, 4 [Zootaxa No. 3579; ref. 32315] Barrow L1 transect, 21°00'49"S, 114°39'09"E to 21°00'47"S, 114°38'54"E, off northwestern Australia, depth 250-258 meters. Holotype: NMV A 29655-002. Spelled S. brayi in Table 1. •Valid as Saccogaster brayae Nielsen, Schwarzhans & Cohen 2012 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Saccogaster brayae Nielsen, Schwarzhans & Cohen 2012. Bythitidae. Distribution: Northwestern Australia. Habitat: marine.

brevianalis, Nybelinella Nielsen [J. G.] 2017:51, Figs. 9-10 [Zootaxa 4247 (no. 1); ref. 35211] West of Madeira, 31°14.9'N, 27°7.5'W, depth 4914-4938 meters. Holotype (unique): BMNH 2016.7.29.11. •Valid as Nybelinella brevianalis Nielsen 2017 -- (Carneiro et al. 2019:161 [ref. 37250]). Current status: Valid as Nybelinella brevianalis Nielsen 2017. Bythitidae. Distribution: Northeastern Atlantic Ocean: west of Madeira. Habitat: marine.

brevibrachium, Parasciadonus Nielsen [J. G.] 1984:40, Fig. 1 [Cybium v. 8 (no. 1); ref. 5156] Central Atlantic, 10°59'N, 45°15'W, depth 5073 meters. Holotype (unique): MNHN 1979-228. •Valid as Parasciadonus brevibrachium Nielsen 1984 -- (Nielsen & Cohen in Nielsen et al. 1999:141 [ref. 24448], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:222 [ref. 34855]). Current status: Valid as Parasciadonus brevibrachium Nielsen 1984. Bythitidae. Distribution: Atlantic. Habitat: marine.

brevidorsalis, Aphyonus Nielsen [J. G.] 1969:20, Fig. 6 [Galathea Report v. 10; ref. 3195] Off Durban, KwaZulu-Natal, South Africa, 34°09'S, 30°45'E, southwestern Indian Ocean, Galathea station 194, depth 4360 meters. Holotype (unique): ZMUC P77452. Type catalog: Nielsen 1974:79 [ref. 9588]. •Valid as Aphyonus brevidorsalis Nielsen 1969 -- (Nielsen 1969:20 [ref. 3195], Cohen & Nielsen 1978:61 [ref. 881], Nielsen 1986:357 [ref. 5699], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Paraphyonus brevidorsalis (Nielsen 1969) -- (Nielsen 2015:332 [ref. 34016]). Current status: Valid as Paraphyonus brevidorsalis (Nielsen 1969). Bythitidae. Distribution: South Africa (Indian Ocean) (rare). Habitat: marine.

brevidorsalis, Nybelinella Shcherbachev [Yu. N.] 1976:162 [146], Fig. 1a [Voprosy Ikhtiologii v. 16 (no. 1) (art. 96); ref. 8665] Southeastern Indian Ocean, 12°47'S, 88°54'E, Vityaz station 6744-5, depth 5160 meters. Holotype (unique): ZIN 42297. On p. 146 of English translation. •Valid as Nybelinella brevidorsalis Shcherbachev 1976 -- (Cohen & Nielsen 1978:62 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:140 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2017:52 [ref. 35211]). Current status: Valid as Nybelinella brevidorsalis Shcherbachev 1976. Bythitidae. Distribution: Southeastern Indian Ocean. Habitat: marine.

brevis, Oculospinus Koefoed [E.] 1927:139, Pl. 6 (fig. 5) [Scientific Results of the Michael Sars North Atlantic Deep-Sea Expedition 1910 v. 4 (pt 1); ref. 2650] North Atlantic, 35°32'N, 7°07'W, station 23, depth 1215 meters. Holotype (unique): ZMUB 3215. Type catalog: Frøiland 1979:150 [ref. 21547]. •Valid as Oculospinus brevis Koefoed 1927 -- (Nielsen & Nybelin 1963:210 [ref. 5094], Nielsen 1973:551 [ref. 6885]). •Synonym of Cataetyx alleni (Byrne 1906) -- (Cohen & Nielsen 1978:47 [ref. 881], Nielsen in Whitehead et al. 1986:1155 [ref. 13677], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448]). Current status: Synonym of Cataetyx alleni (Byrne 1906). Bythitidae. Habitat: marine.

brunnea, Diplacanthopoma (Sarcocara) Smith [H. M.] & Radcliffe [L.] in Radcliffe 1913:167, Pl. 13 (fig. 3) [Proceedings of the United States National Museum v. 44 (no. 1948); ref. 3579] Palawan Passage, 10°57'45"N, 118°38'15"E, Philippines, Albatross station 5348, depth 375 fathoms. Holotype (unique): USNM 74148. •Valid as Diplacanthopoma brunnea Smith & Radcliffe 1913 -- (Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Nielsen in Randall & Lim 2000:596 [ref. 25122], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Diplacanthopoma brunneum Smith & Radcliffe 1913. Current status: Valid as Diplacanthopoma brunneum Smith & Radcliffe 1913. Bythitidae. Distribution: Western Pacific, ? Indian Ocean. Habitat: marine.

bruuni, Barathronus Nielsen [J. G.] 1969:51, Fig. 37 [Galathea Report v. 10; ref. 3195] Southern central Indian Ocean, 29°45'S, 64°58'E, depth 0-1710 meters over bottom of 4825 meters. Holotype (unique): USNM 202104. •Valid as Barathronus bruuni Nielsen 1969 -- (Nielsen 1969:51 [ref. 3195], Cohen & Nielsen 1978:62 [ref. 881], Okiyama & Kato 1997:224 [ref. 22940], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2019:239 [ref. 36994]). Current status: Valid as Barathronus bruuni Nielsen 1969. Bythitidae. Distribution: Southwestern Indian Ocean. Habitat: marine.

bruuni, Oculospinus Nielsen [J. G.] & Nybelin [O.] 1963:206, Pl. 2 (figs. A-C); Figs. 11-12 [Atlantide Report No. 7; ref. 5094] Off West Africa, 7°55'S, 12°38'E, depth 235-460 meters. Holotype: ZMUC P77385. Paratypes: ZMUC P77386 (1). Type catalog: Nielsen 1974:78 [ref. 9588]. •Valid as Cataetyx bruuni (Nielsen & Nybelin 1963) -- (Cohen 1981:1092 [ref. 8491], Nielsen 1990:574 [ref. 16246], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Balushkin & Prokofiev 2005:557 [ref. 28326], Prokofiev 2005:121 [ref. 34466], Tweddle & Anderson 2008:8 [ref. 29604], Møller & Nielsen 2015:727 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Fermon et al. 2022:208 [ref. 39448]). Current status: Valid as Cataetyx bruuni (Nielsen & Nybelin 1963). Bythitidae. Distribution: Eastern Atlantic: Senegal south to Angola; western Pacific: Australia and New Zealand region. Habitat: marine.

capensis, Bidenichthys Barnard [K. H.] 1934:234, Fig. 3 [Annals and Magazine of Natural History (Series 10) v. 13 (no. 74) (art. 16); ref. 195] South Africa. Syntypes: BMNH 1933.10.31.6 [ex SAM] (1) Still Bay, SAM 17995 (1) False Bay, SAM (1, not found) Still Bay. •Valid as Bidenichthys capensis Barnard 1934 -- (Cohen & Nielsen 1978:53 [ref. 881], Cohen 1986:354 [ref. 5646], Paulin 1995:253 [ref. 21619], Nielsen & Cohen in Nielsen et al. 1999:118 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Anderson & Cohen 2022:263 [ref. 39707], Møller et al. 2022:3 [ref. 38861]). Current status: Valid as Bidenichthys capensis Barnard 1934. Bythitidae. Distribution: Southwestern Indian Ocean: Western Cape to Eastern Cape (South Africa). Habitat: marine.

chthamalorhynchus, Cataetyx Cohen [D. M.] 1981:1092, Figs. 4-5 [Proceedings of the Biological Society of Washington v. 94 (no. 4); ref. 8491] Eastern Atlantic, 33°04'S, 16°43'E, depth 1000 meters. Holotype (unique): ZIN 45773. •Valid as Cataetyx chthamalorhynchus Cohen 1981 -- (Cohen 1986:355 [ref. 5646], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Balushkin & Prokofiev 2005:557 [ref. 28326], Gomon 2008:357 [ref. 30616], Møller & Nielsen 2015:728 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583]). Current status: Valid as Cataetyx chthamalorhynchus Cohen 1981. Bythitidae. Distribution: Cosmopolitan (few localities). Habitat: marine.

claudei, Benthocometes Torre y Huerta [C. de la] 1930:170, Fig. opp. p. 170 [Revista de la Societad Geográfica de Cuba. v. 3 (no. 1); ref. 17926] Uvero Alto, Matanzas Bay, Cuba, depth 600 meters. Holotype (unique): MCZ 33943. Type catalog: Faloh-Gandarilla et al. 2016:10 [ref. 35177]. Type described and figured in Howell Rivero 1934:70-72, Pl. 7 [ref. 3766]. •Valid as Oligopus claudei (Torre y Huerta 1930) -- (Cohen & Nielsen 1978:49 [ref. 881], Robins & Ray 1986:97 [ref. 23100]). •Valid as Grammonus claudei (de la Torre y Huerta 1930) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Smith-Vaniz et al. 1999:155 [ref. 25013], Nielsen 2003:974 [ref. 27009], Smith et al. 2003:12 [ref. 27621], Nelson et al. 2004:92 [ref. 27807], Nielsen & Cohen 2004:85 [ref. 28073] with author as Torre and Huerta, Garrido-Linares & Acero P. 2006:289 [ref. 28946], Nielsen 2007:375 [ref. 29358], Nielsen & Prokofiev 2010:192 [ref. 30790], Page et al. 2013:95 [ref. 32708], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Faloh-Gandarilla et al. 2016:10 [ref. 35177], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Grammonus claudei (Torre y Huerta 1930). Bythitidae. Distribution: Western Atlantic. Habitat: marine.

consobrinus, Dinematichthys Hutton [F. W.] 1876:217 [Transactions and Proceedings of the New Zealand Institute v. 8 (1875); ref. 14210] Off Cape Runaway, 37°31.6'S, 177°59.0'E, depth 107 meters. Neotype: NMNZ P.7830. Type catalog: Russell 1996:224 [ref. 22562]. Neotype designated by Paulin 1995:255 [ref. 21619]. •Questionably in genus Monothrix -- (Cohen & Nielsen 1978:60 [ref. 881]). •Valid as Bidenichthys consobrinus (Hutton 1876) -- (Paulin et al. 1989:133 [ref. 24556], Paulin & Roberts 1992:39 [ref. 24625], Paulin 1995:253 [ref. 21619], Nielsen & Cohen in Nielsen et al. 1999:118 [ref. 24448], Møller & Nielsen 2015:723 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Møller et al. 2022:3 [ref. 38861]). Current status: Valid as Bidenichthys consobrinus (Hutton 1876). Bythitidae. Distribution: New Zealand: North Island and northern South Island. Habitat: marine.

crassiceps, Hephthocara Smith [H. M.] & Radcliffe [L.] in Radcliffe 1913:174, Pl. 17 (figs. 1-2) [Proceedings of the United States National Museum v. 44 (no. 1948); ref. 3579] Butung [Buton], 5°34'00"S, 122°18'15"E, Philippines, Albatross station 5647, depth 519 fathoms. Holotype: USNM 74154. Paratypes (?): BMNH 1939.4.1.1 [ex USNM] (1); USNM 99121-24 (1, 1, 1, 1), 99134-35 (4, 1), 99137 (2), 99139 (1), 99151 (1), 99165 (2), 99177 (3), 99209 (5, 2 c&s), 99210 (1), 99212 (1), 99214 (2), 99218-20 (8, 6, 2), 99232-34 (1, 5, 7). •Valid as Hephthocara crassiceps Smith & Radcliffe 1913 -- (Nielsen & Cohen in Nielsen et al. 1999:106 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Hephthocara crassiceps Smith & Radcliffe 1913. Bythitidae. Distribution: Western Pacific. Habitat: marine.

cryptica, Bellottia Nielsen [J. G.], Ross [S. W.] & Cohen [D. M.] 2009:51, Figs. 5-7 [Zootaxa No. 2018; ref. 30092] Off southern Georgia, U.S.A., 30°48.74'N, 79°37.96' W, depth 629 meters. Holotype (unique): NCSM 44451. •Valid as Bellottia cryptica Nielsen, Ross & Cohen 2009 -- (Fernández-Zapico et al. 2013:195 [ref. 32657], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Bellottia cryptica Nielsen, Ross & Cohen 2009. Bythitidae. Distribution: Western Atlantic: off southern Georgia (U.S.A.). Habitat: marine.

cryptophthalmus, Leucochlamys Zugmayer [E.] 1911:11 [Bulletin de l'Institut Océanographique (Monaco) No. 193; ref. 6161] Off Spain, 44°07'59"N, 10°43'59"W, station 2994, depth 5000 meters. Holotype (unique): MOM 0091-1115. Type catalog: Belloc 1949:15 [ref. 21544]. Species illustrated and described in more detail in Zugmayer 1911:131, Pl. 6 (fig. 4) [ref. 4846]. •Valid as Leucochlamys cryptophthalmus Zugmayer 1911 -- (Nielsen 1969:70 [ref. 3195], Nielsen 1973:555 [ref. 6885]). •Valid as Sciadonus cryptophthalmus (Zugmayer 1911) -- (Cohen & Nielsen 1978:63 [ref. 881], Nielsen in Whitehead et al. 1986:1171 [ref. 13677], Nielsen & Cohen in Nielsen et al. 1999:142 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2018:178 [ref. 36002], Bañón & Maño 2021:62 [ref. 38883], Melo et al. 2021:5 [ref. 38956]). Current status: Valid as Sciadonus cryptophthalmus (Zugmayer 1911). Bythitidae. Distribution: Northeastern Atlantic: Galicia (Spain). Habitat: marine.

dentatus, Lucifuga Poey [F.] 1858:[102], Pls. 9 (fig. 1), 10, 11 [Memorias sobre la historia natural de la Isla de Cuba v. 2; ref. 3499] Cave of Cajio, Cuba. Syntypes and/or Poey specimens: MCZ 12415 (1), 32329 (1); ZMB 5961 (1). Type catalog: Howell Rivero 1938:218 [ref. 22926] with a holotype, Faloh-Gandarilla et al. 2016:9 [ref. 35177]. Name available from Pl. 9, Oct. 1858; text and remaining plates 10 and 11 published July 1860. •Valid as Lucifuga dentatus Poey 1858 -- (Cohen & Nielsen 1978:54 [ref. 881], Nalbant 1981:186 [ref. 8567], Lee et al. 1983:8 [ref. 22527], Romero & Paulson 2001:32 [ref. 26040], Proudlove 2006:171 [ref. 28992], Faloh-Gandarilla et al. 2016:9 [ref. 35177]). •Valid as Lucifuga dentata Poey 1858 -- (Nielsen & Cohen in Nielsen et al. 1999:123 [ref. 24448], Nielsen 2003:974 [ref. 27009], Nielsen in Reis et al. 2003:507 [ref. 27061], Møller et al. 2006:31 [ref. 28699], Garrido-Linares & Acero P. 2006:289 [ref. 28946], García-Machado et al. 2011:1 [ref. 39089], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Hernández et al. 2020:32 [ref. 37642]). Current status: Valid as Lucifuga dentata Poey 1858. Bythitidae. Distribution: West Indies: karst caves on Guanahacabibes Peninsula (Matanzas Province, western Cuba). Habitat: freshwater, brackish.

dentiens, Parabrotula Beebe [W.] 1932:81, Figs. 19-20 [Zoologica, Scientific Contributions of the New York Zoological Society v. 13 (no. 4); ref. 16099] 8 miles southeast of Nonsuch Island, Bermuda, depth 800 fathoms. Holotype (unique): USNM 170952 [ex NYZS 16110 (not 15882)] (c&s). Type catalog: Mead 1958:134 [ref. 20648]. •Synonym of Parabrotula plagiophthalma Zugmayer 1911 -- (Nielsen 1973:548 [ref. 6885] as plagiophthalmus, Nielsen in Whitehead et al. 1986:1152 [ref. 13677] as plagiophthalmus, Kimura et al. 1990:318 [ref. 19556], Campbell et al. 2017:338 [ref. 35124]). Current status: Synonym of Parabrotula plagiophthalma Zugmayer 1911. Bythitidae. Habitat: marine.

diagrammus, Eutyx Heller [E.] & Snodgrass [R. E.] 1903:224, Pl. 19 [Proceedings of the Washington Academy of Sciences v. 5; ref. 2089] Tagus Cove, Isabela Island [Albemarle Island], Galápagos Islands, depth about 3 fathoms. Holotype: CAS-SU 6346. Paratypes: CAS-SU 7059 (1). Type catalog: Böhlke 1953:101 [ref. 12291]. •Valid as Oligopus diagrammus (Heller & Snodgrass 1903) -- (Cohen & Nielsen 1978:49 [ref. 881], Eschmeyer & Herald 1983:103 [ref. 9277], Allen & Robertson 1994:77 [ref. 22193], Grove & Lavenberg 1997:222 [ref. 24023], Richards & Engle 2001:181 [ref. 25759]). •Valid as Grammonus diagrammus (Heller & Snodgrass 1903) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Thomson et al. 2000:53 [ref. 25640], Nelson et al. 2004:92 [ref. 27807], Nielsen & Cohen 2004:85 [ref. 28073], Love et al. 2005:52 [ref. 37547], Castellanos-Galindo et al. 2006:199 [ref. 28944], Nielsen 2007:375 [ref. 29358], Nielsen & Prokofiev 2010:192 [ref. 30790], McCosker & Rosenblatt 2010:190 [ref. 30957], Page et al. 2013:95 [ref. 32708], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Fourriére et al. 2016:442 [ref. 34668], Del Moral-Flores et al. 2016:607 [ref. 34923], Love et al. 2021:84 [ref. 39279], Grove et al. 2022:18 [ref. 41326], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Grammonus diagrammus (Heller & Snodgrass 1903). Bythitidae. Distribution: Eastern Pacific: southern Califoria (U.S.A.) south to Ecuador, including Gulf of California (Mexico), Revillagigedo Islands (Mexico) and Galapagos Islands (Ecuador). Habitat: marine.

diaphanus, Barathronus Brauer [A.] 1906:305, Pl. 14 (fig. 6) [Die Tiefsee-Fische v. 15; ref. 632] Off eastern Africa, 2°59'N, 47°06'E, Valdivia station 259, depth 1289 meters. Holotype (unique): ZMB 17688. Holotype as ZMB 17699 in Nielsen & Møller 2008:39 [ref. 29803] and in Nielsen 2019:241 [ref. 36994]. •Valid as Barathronus diaphanus Brauer 1906 -- (Nielsen 1969:44 [ref. 3195], Nielsen & Eagle 1974:1071 [ref. 7525], Cohen & Nielsen 1978:62 [ref. 881], Okiyama & Kato 1997:224 [ref. 22940], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Nielsen & Møller 2008:39 [ref. 29803], Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2019:241 [ref. 36994]). Current status: Valid as Barathronus diaphanus Brauer 1906. Bythitidae. Distribution: Indo-West Pacific: from Madagascar to Japan and Tonga Islands. Habitat: marine.

disjunctus, Timorichthys Nielsen [J. G.] & Schwarzhans [W.] 2011:144, Figs. 1-3 [The Beagle, Records of the Museums and Art Galleries of the Northern Territory v. 27; ref. 31713] Timor Sea, off northwestern Australia, ca. 78 km south of Cartier Island, Kulumburu L29 transect, 13°13'29"S, 123°23'44"E to 13°13'20"S, 123°23'17"E, southeastern Indian Ocean, depth 392 meters. Holotype (unique): NMV A29734-002. •Valid as Timorichthys disjunctus Nielsen & Schwarzhans 2011 -- (Nielsen et al. 2013:1 [ref. 32722], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Timorichthys disjunctus Nielsen & Schwarzhans 2011. Bythitidae. Distribution: Southeastern Indian Ocean: off northwestern Australia. Habitat: marine.

erikssoni, Barathronus Nybelin [O.] 1957:308, Pl. 7 (figs. 1, 5, 7) [Reports of the Swedish Deep-Sea Expedition 1947-1948 v. 2 (Zool.) (fasc. 3) (art. 20); ref. 3235] North Atlantic, 1°03'N, 18°40'W to 0°58'N, 18°27'W, depth 5250-5300 meters. Holotype (unique): NHMG Pi.1743. •Valid as Nybelinella erikssoni (Nybelin 1957) -- (Nielsen 1969:23 [ref. 3195], Nielsen 1972:53 [ref. 3196], Nielsen 1973:556 [ref. 6885], Cohen & Nielsen 1978:62 [ref. 881], Nielsen in Whitehead et al. 1986:1170 [ref. 13677], Nielsen 1990:576 [ref. 16246], Nielsen & Cohen in Nielsen et al. 1999:140 [ref. 24448], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:288 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1956 [ref. 34583], Nielsen 2017:47 [ref. 35211], Carneiro et al. 2019:161 [ref. 37250]). Current status: Valid as Nybelinella erikssoni (Nybelin 1957). Bythitidae. Distribution: Atlantic and southwestern Indian Ocean, doubtfully from central Indian Ocean [ref. 35211]. Habitat: marine.

erythrops, Meteoria Nielsen [J. G.] 1969:58, Fig. 40 [Galathea Report v. 10; ref. 3195] Off Azores, northeastern Atlantic, 42°06.3'N, 14°42'W to 42°08.1'N, 14°30.7'W, depth 5320 meters. Holotype (unique): ZMH 25142. Plus non-type material [ref. 34855]. [We had NHMG Pi. 1746 as a paratype.] Type catalog: Krefft 1978:14 [ref. 9884]. •Valid as Meteoria erythrops Nielsen 1969 -- (Nielsen 1972:52 [ref. 3196], Nielsen 1973:555 [ref. 6885], Cohen & Nielsen 1978:62 [ref. 881], Nielsen in Whitehead et al. 1986:1169 [ref. 13677], Santos et al. 1997:53 [ref. 23531], Arruda 1997:110 [ref. 24952], Nielsen & Cohen in Nielsen et al. 1999:139 [ref. 24448], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:288 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:217 [ref. 34855], Carneiro et al. 2019:161 [ref. 37250]). Current status: Valid as Meteoria erythrops Nielsen 1969. Bythitidae. Distribution: Atlantic. Habitat: marine.

fuscus, Bythites Reinhardt [J. C. H.] 1837:116, 179, 195, 196, Pls. 7-8 [Det Kongelige Danske videnskabernes selskabs naturvidenskabelige og mathematiske afhandlinger v. 7; ref. 3691] Fiskenaesset, western Greenland, about 63°N, 51°W, from great depths. Holotype (unique): ZMUC 1. Type catalog: Nielsen 1974:78 [ref. 9588]. On pp. 34, 97, 113 & 114 of separate. •Valid as Bythites fuscus Reinhardt 1837 -- (Nielsen & Cohen 1973:72 [ref. 3200], Cohen & Nielsen 1978:46 [ref. 881], Cohen et al. 1990:269 [ref. 14223], Nielsen & Cohen in Nielsen et al. 1999:98 [ref. 24448], Nielsen & Cohen 2002:51 [ref. 26528], Møller et al. 2010:35 [ref. 31169], Afonso et al. 2016:38, 114 [ref. 36199], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Bythites fuscus Reinhardt 1837. Bythitidae. Distribution: North Atlantic. Habitat: marine.

galatheae, Bellottia Nielsen [J. G.] & Møller [P. R.] 2008:34, Figs. 19-20 [Steenstrupia v. 30 (no. 1); ref. 29803] Solomon Sea, 7°25.6'S, 155°30.1'E, depth 440-466 meters. Holotype: ZMUC P771582. Paratypes: USNM 99222 (1) [also a paratype of Bellotti armiger]. •Valid as Bellottia galatheae Nielsen & Møller 2008 -- (Fernández-Zapico et al. 2013:195 [ref. 32657], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Bellottia galatheae Nielsen & Møller 2008. Bythitidae. Distribution: Solomon Sea and Molucca Sea. Habitat: marine.

galatheae, Leucochlamys Nielsen [J. G.] 1969:75, Fig. 51 [Galathea Report v. 10; ref. 3195] Kermadec Trench, southern Pacific, 36°31'S, 178°38'W, depth 4410 meters. Holotype: ZMUC P77456. Paratypes: ZMUC P77457 (1). Type catalog: Nielsen 1974:79 [ref. 9588]. •Valid as Sciadonus galatheae (Nielsen 1969) -- (Cohen & Nielsen 1978:63 [ref. 881], Nielsen in Whitehead et al. 1986:1171 [ref. 13677], Paulin et al. 1989:133 [ref. 24556], Nielsen & Cohen in Nielsen et al. 1999:142 [ref. 24448], Nielsen & Møller 2008:43 [ref. 29803], Nielsen & Møller 2015:738 [ref. 34259], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1956 [ref. 34583]). •Synonym of Sciadonus pedicellaris Garman 1899 -- (Nielsen 2018:183 [ref. 36002], Nielsen et al. 2019:569 [ref. 36568]). Current status: Synonym of Sciadonus pedicellaris Garman 1899. Bythitidae. Habitat: marine.

gelatinosus, Aphyonus Günther [A.] 1878:22 [6] [Annals and Magazine of Natural History (Series 5) v. 2 (nos 7/8/9)(art. 2/22/28); ref. 2010] Off Cape York, Queensland, Australia, Challenger station 184, 12°08'S, 145°10'E, depth 1400 fathoms [2550 meters]. Holotype (unique): BMNH 1887.12.7.59. On p. 6 of separate. See also Günther 1887:120, Pl. 26 (fig. A) [ref. 2013]. •Valid as Aphyonus gelatinosus Günther 1878 -- (Nielsen 1969:15 [ref. 3195], Cohen & Nielsen 1978:61 [ref. 881], Nielsen in Whitehead et al. 1986:1168 [ref. 13677], Nielsen 1986:357 [ref. 5699], Paxton et al. 1989:318 [ref. 12442], Nielsen 1990:576 [ref. 16246], Nielsen 1997:78 [ref. 23255], Santos et al. 1997:53 [ref. 23531], Arruda 1997:110 [ref. 24952], McEachran & Fechhelm 1998:739 [ref. 23897], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:288 [ref. 28946], Bray et al. 2006:576 [ref. 29063], Franco et al. 2007:909 [ref. 29254], Costa & Mincarone 2010:340 [ref. 37483], Fricke et al. 2011:367 [ref. 31242], Ohashi et al. 2013:111 [ref. 33255], Nielsen 2015:324 [ref. 34016], Nielsen & Møller 2015:737 [ref. 34259], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1956 [ref. 34583], Fricke et al. 2018:85 [ref. 35805], Carneiro et al. 2019:160 [ref. 37250], Nielsen et al. 2019:557 [ref. 36568], Page et al. 2023:110 [ref. 40505]). Current status: Valid as Aphyonus gelatinosus Günther 1878. Bythitidae. Distribution: Circumglobal in tropical and warm temperate seas, but not in eastern Pacific. Habitat: marine.

geraldalleni, Microbrotula Schwarzhans [W.] & Nielsen [J. G.] 2012:320, Figs. 1-2 [Zootaxa No. 3583; ref. 32349] Cenderawasih Bay, Pulau Nurage, 3°02'S, 134°50'E, West Papua, Indonesia, depth 5-12 meters. Holotype: MZB 21247. Paratypes: MZB 21248, WAM P 33046-003 and ZMUC P771717 (total 8). •Valid as Microbrotula geraldalleni Schwarzhans & Nielsen 2012 -- (Allen & Erdmann 2024:154 [ref. 40796]). Current status: Valid as Microbrotula geraldalleni Schwarzhans & Nielsen 2012. Bythitidae. Distribution: Western Pacific: Cenderawasih Bay, West Papua (Indonesia). Habitat: marine.

gerdae, Bythites Nielsen [J. G.] & Cohen [D. M.] 1973:80, Fig. 9 [Steenstrupia v. 3 (no. 8); ref. 3200] Straits of Florida, 25°41'-47'N, 79°31'-34'W, Gerda station 311, depth 786-805 meters. Holotype: USNM 207274. Paratypes: ZMUC P77539 (1). •Valid as Bythites gerdae Nielsen & Cohen 1973 -- (Cohen & Nielsen 1978:46 [ref. 881], Cohen et al. 1990:269 [ref. 14223], Nielsen & Cohen in Nielsen et al. 1999:98 [ref. 24448], Nielsen & Cohen 2002:52 [ref. 26528], Nielsen 2003:974 [ref. 27009], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Bythites gerdae Nielsen & Cohen 1973. Bythitidae. Distribution: Western Atlantic. Habitat: marine.

gibarensis, Lucifuga Hernández [D.], Møller [P. R.], Casane [D.] & García-Machado [E.] 2020:20, Figs. 2-3 [ZooKeys No. 946; ref. 37642] Aguada de Macigo cave, near Gibara municipality, Northern Holguin province, Cuba, about 21°09'42"N, 76°14'55"W, depth 12 meters. Holotype: MFP 18.000420. Paratypes: MFP, ZMUC. •Valid as Lucifuga gibarensis Hernández, Møller, Casane & García-Machado 2020. Current status: Valid as Lucifuga gibarensis Hernández, Møller, Casane & García-Machado 2020. Bythitidae. Distribution: Isolated karst caves, north of Gibara, Holguín province, Cuba, western Atlantic. Habitat: freshwater, brackish.

goslinei, Calamopteryx Böhlke [J. E.] & Cohen [D. M.] 1966:4, Figs. 1-3 [Notulae Naturae (Philadelphia) No. 396; ref. 606] Indian Cay, off West End, Grand Bahama Island, Bahamas, depth 75 feet. Holotype: ANSP 100892. Paratypes: ANSP 106694-98 (2, 1, 1, 1, 1), 106699 (5, c&s), 106700-02 (1, 1, 1); UF 12340-41 (1, 2); USNM 198218 (27, 2 c&s, 2 missing); ZMUC P77464-465 [? ex USNM 198218] (2). Type catalog: Gilbert 1974:112 [ref. 21035], Nielsen 1974:78 [ref. 9588], Böhlke 1984:134 [ref. 13621]. •Valid as Calamopteryx goslinei Böhlke & Cohen 1966 -- (Cohen 1973:349 [ref. 7138], Cohen & Nielsen 1978:46 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:99 [ref. 24448], Claro et al. 2000:21 [ref. 26458], Collette et al. 2003:100 [ref. 26784], Nielsen 2003:974 [ref. 27009], Smith et al. 2003:12 [ref. 27621], Nelson et al. 2004:92 [ref. 27807], Garrido-Linares & Acero P. 2006:289, 296 [ref. 28946], Schwarzhans & Nielsen 2011:148 [ref. 31714], Page et al. 2013:95 [ref. 32708], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Calamopteryx goslinei Böhlke & Cohen 1966. Bythitidae. Distribution: Western Atlantic. Habitat: marine.

greenfieldi, Microbrotula Anderson [M. E.] 2007:2, Fig. 1 [Species Diversity v. 12 (no. 1); ref. 29164] Vanua Levu, Pascoe Reefs, 3rd reef west of Yadua Island, 16°50.188'S, 178°13.665'E, Fiji, depth 10.6-13.7 meters. Holotype: CAS 222542. Paratypes: BPBM 39982 (1), CAS 223980 (1). •Valid as Microbrotula greenfieldi Anderson 2007 -- (Schwarzhans & Nielsen 2011:153 [ref. 31714], Schwarzhans & Nielsen 2012:71 [ref. 32349], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Microbrotula greenfieldi Anderson 2007. Bythitidae. Distribution: Fiji. Habitat: marine.

hadrocephalus, Melodichthys Nielsen [J. G.] & Cohen [D. M.] 1986:383, Figs. 1-3 [Cybium v. 10 (no. 4); ref. 6039] Celtic Sea, 48°00'N, 8°00'W, depth 300-400 meters. Holotype (unique): MNHN 1986-0392. •Valid as Melodichthys hadrocephalus Nielsen & Cohen 1986 -- (Nielsen & Cohen in Nielsen et al. 1999:124 [ref. 24448], Nielsen et al. 2004:40 [ref. 27738], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Melodichthys hadrocephalus Nielsen & Cohen 1986. Bythitidae. Distribution: Eastern North Pacific. Habitat: marine.

hamata, Microbrotula Schwarzhans [W.] & Nielsen [J. G.] 2011:155, Figs. 1B, 5A-D [The Beagle, Records of the Museums and Art Galleries of the Northern Territory v. 27; ref. 31714] New Caledonia, 8 nautical miles west-southwest of Noumea, Seche Croissant Reef, 22°19.0'S, 166°21.0'E, depth 8-10 meters. Holotype: NMNZ 29559. Paratypes: MNHN 2011-0815 (1). •Valid as Microbrotula hamata Schwarzhans & Nielsen 2011 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Microbrotula hamata Schwarzhans & Nielsen 2011. Bythitidae. Distribution: New Caledonia. Habitat: marine.

hawaii, Saccogaster Cohen [D. M.] & Nielsen [J. G.] 1972:455, Figs. 1c, 3 [Proceedings of the Biological Society of Washington v. 85 (no. 39); ref. 7606] Hawaiian Islands [Pailolo Channel, northwest of Maui], 21°00'N, 156°47'W, depth 234 meters. Holotype (unique): USNM 207355. •Valid as Saccogaster hawaii Cohen & Nielsen 1972 -- (Cohen & Nielsen 1978:50 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Mundy 2005:247 [ref. 28379], Nielsen et al. 2012:10 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Saccogaster hawaii Cohen & Nielsen 1972. Bythitidae. Distribution: Maui, Hawaiian Islands. Habitat: marine.

hawaiiensis, Cataetyx Gosline [W. A.] 1954:76, Figs. 1g, 2c, 3c [Pacific Science v. 8 (no. 1); ref. 1860] Off the Mauna Loa lava flow, Hawaii Island, Hawaiian Islands. Holotype (unique): USNM 162715. •Valid as Cataetyx hawaiiensis Gosline 1954 -- (Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Balushkin & Prokofiev 2005:557 [ref. 28326], Mundy 2005:246 [ref. 28379], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Cataetyx hawaiiensis Gosline 1954. Bythitidae. Distribution: Hawaiian Islands. Habitat: marine.

holguinensis, Lucifuga dentatus var. Díaz Pérez [P. A.], Nieto Misas [E.] & Abio Virsida [G.] 1987:44 [Revista Biologia (Havana) v. 8 (no. 1); ref. 36490] Aguada del Macío y Tanque Azul, Gibara, Holguín Province, Cuba. Holotype: MCNCT unnumbered. Paratype: DZUH 3005 (1). Named as a variety after 1960, so not available [ICZN Art. 15.2]. •In the synonymy of Lucifuga gibarensis Hernández, Møller, Casane & García-Machado 2020 -- (Hernández et al. 2020:17 [ref. 37642]). Infrasubspecific. Current status: Synonym of Lucifuga gibarensis Hernández, Møller, Casane & García-Machado 2020. Bythitidae. Habitat: freshwater, brackish.

hollisi, Bythites Cohen [D. M.], Rosenblatt [R. H.] & Moser [H. G.] 1990:270, Figs. 1-8 [Deep-Sea Research v. 37 (no. 2); ref. 14223] Hydrothermal vent (Mussel Bed) on Galápagos Rift Zone, 0°47.894'N, 86°9.210'W, depth 2500 meters. Holotype (unique): SIO 88-97. •Valid as Bythites hollisi Cohen, Rosenblatt & Moser 1990 -- (Geistdoerfer 1999:9 [ref. 23832], Nielsen & Cohen in Nielsen et al. 1999:98 [ref. 24448], Machida & Hashimoto 2002:1 [ref. 25949], Chernova & Geistdorfer 2003:153 [ref. 26887]). •Valid as Gerhardia hollisi (Cohen, Rosenblatt & Moser 1990) -- (Nielsen & Cohen 2002:50 [ref. 26528]). •Valid as Thermichthys hollisi (Cohen, Rosenblatt & Moser 1990) -- (Nielsen & Cohen 2005:395 [ref. 28470], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Chen et al. 2024:5 [ref. 41022]). Current status: Valid as Thermichthys hollisi (Cohen, Rosenblatt & Moser 1990). Bythitidae. Distribution: Southeastern Pacific: Galapagos Rift Zone (Equador). Habitat: marine.

hopkinsi, Petrotyx Heller [E.] & Snodgrass [R. E.] 1903:222, Pl. 18 [Proceedings of the Washington Academy of Sciences v. 5; ref. 2089] Barrington Island, Galápagos Islands. Holotype (unique): CAS-SU 6344. Type catalog: Böhlke 1953:101 [ref. 12291]. •Valid as Petrotyx hopkinsi Heller & Snodgrass 1903 -- (Cohen & Nielsen 1978:38 [ref. 881], Grove & Lavenberg 1997:214 [ref. 24023], Nielsen & Cohen in Nielsen et al. 1999:85 [ref. 24448], Thomson et al. 2000:53 [ref. 25640], Nelson et al. 2004:92 [ref. 27807], Castellanos-Galindo et al. 2006:198 [ref. 28944], McCosker & Rosenblatt 2010:190 [ref. 30957], Page et al. 2013:95 [ref. 32708], Møller et al. 2016:Appendix A [ref. 34432], Bauer et al. 2018:676 [ref. 36287], Love et al. 2021:83 [ref. 39279], Grove et al. 2022:18 [ref. 41326], Page et al. 2023:110 [ref. 40505]). Current status: Valid as Petrotyx hopkinsi Heller & Snodgrass 1903. Bythitidae. Distribution: Eastern Pacific: southern tip of Baja California Sur (Mexico) south to Peru, including Gulf of California (Mexico) and Galapagos Islands (Ecuador). Habitat: marine.

horrida, Saccogaster Nielsen [J. G.], Schwarzhans [W.] & Cohen [D. M.] 2012:12, Fig. 7, 8 [Zootaxa No. 3579; ref. 32315] Leveque L27 transect, 14°51'12"S, 121°25'53"E to 14°50'43"S, 121°27'01"E, off northwestern Australia, depth 403-396 meters. Holotype: NMV A 29718-019. •Valid as Saccogaster horrida Nielsen, Schwarzhans & Cohen 2012 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Saccogaster horrida Nielsen, Schwarzhans & Cohen 2012. Bythitidae. Distribution: Northwestern Australia. Habitat: marine.

inopinata, Lucifuga (Stygicola) Cohen [D. M.] & McCosker [J. E.] 1998:180, Fig. 1 [Bulletin of Marine Science v. 63 (no. 1); ref. 23690] Seamount southeastern of San Cristobal Island, 01°06.4'S, 89°07.0'W, Galápagos Archipelago, depth 203 meters. Holotype (unique): CAS 86572. •Probably in another genus -- (Hernández et al. 2020:18 [ref. 37642]). •Valid as Lucifuga inopinata Cohen & McCosker 1998 -- (Nielsen & Cohen in Nielsen et al. 1999:123 [ref. 24448], Møller et al. 2006:24 [ref. 28699], McCosker & Rosenblatt 2010:190 [ref. 30957], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Grove et al. 2022:18 [ref. 41326]). Current status: Valid as Lucifuga inopinata Cohen & McCosker 1998. Bythitidae. Distribution: Eastern Pacific: Galapagos Islands (Ecuador) endemic. Habitat: marine.

iselini, Paraphyonus Nielsen [J. G.] 2015:334, Figs. 11-13 [Zootaxa 4039 (no. 2); ref. 34016] Sargasso Sea, 29°35.5'-35.1'N, 74°32.4'-35.2'W, depth 4566-4606 meters. Holotype: ZMUC P77711. Paratypes: VIMS, ZUMC. •Valid as Paraphyonus iselini Nielsen 2015. Current status: Valid as Paraphyonus iselini Nielsen 2015. Bythitidae. Distribution: Western Atlantic. Habitat: marine.

islandicus, Bythites Nielsen [J. G.] & Cohen [D. M.] 1973:75, Figs. 3-8 [Steenstrupia v. 3 (no. 8); ref. 3200] Off southeastern Iceland, 63°53'N, 14°03'W, depth 229-283 meters. Holotype: ZMUC P77479. Paratypes: ISH 210-1967 (1), Mar. Res. Inst. Reykjavik (1), ZMUC P77480 (1, c&s). Type catalog: Krefft 1978:14 [ref. 9884]. •Valid as Bythites islandicus Nielsen & Cohen 1973 -- (Cohen & Nielsen 1978:46 [ref. 881], Nielsen in Whitehead et al. 1986:1154 [ref. 13677], Cohen et al. 1990:269 [ref. 14223], Nielsen & Cohen in Nielsen et al. 1999:98 [ref. 24448], Nielsen & Cohen 2002:54 [ref. 26528], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Bythites islandicus Nielsen & Cohen 1973. Bythitidae. Distribution: Eastern North Atlantic. Habitat: marine.

japonicus, Myxocephalus Steindachner [F.] & Döderlein [L.] 1887:281 [25] [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 53 (1. abth.); ref. 4249] Sagami Sea, off Tokyo, Japan. Holotype (unique): RMNH. •Valid as Diplacanthopoma japonicus (Steindachner & Döderlein 1887) -- (Machida in Masuda et al. 1984:101 [ref. 6441], Machida 1988:69 [ref. 13418], Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], Nakabo 2000:449 [ref. 25086], Shinohara et al. 2001:308 [ref. 25995], Nakabo 2002:449 [ref. 26001], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Diplacanthopoma japonicum (Steindachner & Döderlein 1887) -- (Prokofiev 2022:681 [1020] [ref. 40458]). Current status: Valid as Diplacanthopoma japonicum (Steindachner & Döderlein 1887). Bythitidae. Distribution: Eastern Indian Ocean, western Pacific: Timor Sea; Japan. Habitat: marine.

jeb, Calamopteryx Cohen [D. M.] 1973:343, Figs. 5-6 [Proceedings of the Biological Society of Washington v. 86 (no. 28); ref. 7138] One miles north of Tagus Cove, Isabela Island [Albemarle Island], Galápagos Islands, depth 0-5 meters. Holotype: FMNH 71603. Paratypes: FMNH 71640 (24); SIO 15-1059 (1) (ex UCLA W53-162), 15-1291 (3) (ex UCLA W67-39), 64-1001 (5) (ex UCLA W64-3), 64-1004 (1) (ex UCLA 64-9), 64-1007 (14) (ex UCLA W64-21), 64-1012 (3) (ex UCLA W64-32), 64-1016 (37) (ex UCLA W64-37); UCLA W64-3 (1 of 6), W64-10 (21), W64-38 (11); USNM 208339 (1), 208340 (6, 2 c&s), 208341-42 (5, 2); ZMUC (2). Type catalog: Ibarra & Stewart 1987:19 [ref. 12367]. •Valid as Calamopteryx jeb Cohen 1973 -- (Cohen & Nielsen 1978:46 [ref. 881], Grove & Lavenberg 1997:220 [ref. 24023], Nielsen & Cohen in Nielsen et al. 1999:99 [ref. 24448], McCosker & Rosenblatt 2010:190 [ref. 30957], Schwarzhans & Nielsen 2011:148 [ref. 31714], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Grove et al. 2022:18 [ref. 41326]). Current status: Valid as Calamopteryx jeb Cohen 1973. Bythitidae. Distribution: Eastern Pacific: Galapagos Islands (Ecuador) endemic. Habitat: marine.

jonassoni, Leucochlamys Nybelin [O.] 1957:311, Pl. 7 (figs. 3, 9) [Reports of the Swedish Deep-Sea Expedition 1947-1948 v. 2 (Zool.) (fasc. 3) (art. 20); ref. 3235] North Atlantic, south of Cape Verde Islands, 9°38'N, 26°20'W to 9°38'N, 26°30'W, depth 5610-5600 meters. Holotype (unique): NHMG Pi. 1745. •Valid as Leucochlamys jonassoni Nybelin 1957 -- (Nielsen 1969:31 [ref. 3195]). •Valid as Sciadonus jonassoni (Nybelin 1957) -- (Cohen & Nielsen 1978:63 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:142 [ref. 24448], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1956 [ref. 34583], Nielsen 2018:181 [ref. 36002], Melo et al. 2021:5 [ref. 38956]). Current status: Valid as Sciadonus jonassoni (Nybelin 1957). Bythitidae. Distribution: North Atlantic, between 1464 and 5610 meters depth. Habitat: marine.

jordani, Diplacanthopoma Garman [S.] 1899:160 [Memoirs of the Museum of Comparative Zoology v. 24; ref. 1540] 1°03'S, 89°28'W, Albatross station 3404, depth 385 fathoms. Holotype (unique): MCZ 28645. •Valid as Diplacanthopoma jordani Garman 1899 -- (Pequeño 1989:48 [ref. 14125], Pequeño 1997:81 [ref. 23536], Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], McCosker & Rosenblatt 2010:190 [ref. 30957], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Grove et al. 2022:18 [ref. 41326]). Current status: Valid as Diplacanthopoma jordani Garman 1899. Bythitidae. Distribution: Eastern Pacific: Galapagos Islands (Ecuador) endemic. IUCN (2020): Least Concern. Habitat: marine.

kreffti, Diplacanthopoma Cohen [D. M.] & Nielsen [J. G.] 2002:12, Figs. 1-2 [Archive of Fishery and Marine Research v. 50 (no. 1); ref. 26526] Northwest Australian shelf, 19°20'S, 115°40'E, Western Australia, depth 348-352 meters. Holotype (unique): WAM P.30586-002. Type catalog: Moore et al. 2008:11 [ref. 30117]. •Valid as Diplacanthopoma kreffti Cohen & Nielsen 2002 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Diplacanthopoma kreffti Cohen & Nielsen 2002. Bythitidae. Distribution: Southeastern Indian Ocean: off western Australia. Habitat: marine.

kullenbergi, Sciadonus Nybelin [O.] 1957:310, Fig. 48; Pl. 7 (figs. 2, 6, 8) [Reports of the Swedish Deep-Sea Expedition 1947-1948 v. 2 (Zool.) (fasc. 3) (art. 20); ref. 3235] North Atlantic, off the Azores, 40°32'N, 35°24'W to 40°34'N, 35°52'W, depth 4540-4600 meters. Holotype (unique): NHMG. •Synonym of Sciadonus pedicellaris Garman 1899 -- (Nielsen 1969:63 [ref. 3195], Nielsen & Eagle 1974:1071 [ref. 7525], Cohen & Nielsen 1978:63 [ref. 881], Santos et al. 1997:54 [ref. 23531], Nielsen & Cohen in Nielsen et al. 1999:142 [ref. 24448], Nielsen 2018:183 [ref. 36002], Nielsen et al. 2019:569 [ref. 36568]). Current status: Synonym of Sciadonus pedicellaris Garman 1899. Bythitidae. Habitat: marine.

larsonae, Acarobythites Machida [Y.] 2000:125, Figs. 1-4 [The Beagle, Records of the Museums and Art Galleries of the Northern Territory v. 16; ref. 25106] Northwestern side of Field Island, 12°04.20'S, 132°19.31'E, Northern Territory, Australia, depth 0.3 meters. Holotype: NTM S.14665-026. Paratypes: NTM S.10015-049 (1). •Valid as Acarobythites larsonae Machida 2000 -- (Hoese & Gates 2006:568 [ref. 28997], Larson et al. 2013:50 [ref. 32988], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Acarobythites larsonae Machida 2000. Bythitidae. Distribution: Northern Australia. Habitat: marine.

latebricola, Stygnobrotula Böhlke [J. E.] 1957:2, Fig. 1 (A-B); Pl. 1 [Notulae Naturae (Philadelphia) No. 295; ref. 597] About 1/4 mile north of eastern end of Green Cay, Bahamas, 25°07'00"N, 77°11'15"W. Holotype (unique): ANSP 74759. Type catalog: Böhlke 1984:135 [ref. 13621]. •Valid as Stygnobrotula latebricola Böhlke 1957 -- (Cohen & Nielsen 1978:51 [ref. 881], Robins & Ray 1986:97 [ref. 23100], Cervigón 1991:176 [ref. 24472], Nielsen & Cohen in Nielsen et al. 1999:111 [ref. 24448], Menezes & Figueiredo in Menezes et al. 2003:60 [ref. 27192], Nielsen 2003:974 [ref. 27009], Nelson et al. 2004:92 [ref. 27807], Dennis et al. 2004:72 [ref. 31601], Garrido-Linares & Acero P. 2006:290, 296 [ref. 28946], Page et al. 2013:96 [ref. 32708], Smith-Vaniz & Jelks 2014:29 [ref. 33341], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Carvalho-Filho 2023:80 [ref. 40480], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Stygnobrotula latebricola Böhlke 1957. Bythitidae. Distribution: Western Atlantic: Florida (U.S.A.) and Bahamas south to Bahia (Brazil). IUCN (2010): Least Concern. Habitat: marine.

laticeps, Cataetyx Koefoed [E.] 1927:137, Pl. 6 (fig. 3) [Scientific Results of the Michael Sars North Atlantic Deep-Sea Expedition 1910 v. 4 (pt 1); ref. 2650] North Atlantic, 28°08'N, 13°35'W, station 41, depth 1365 meters. Holotype (unique): ZMUB 3374. Type catalog: Frøiland 1979:150 [ref. 21547]. •Possibly a synonym of Cataetyx simus Garman 1899 -- (Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448]). •Valid as Cataetyx laticeps Koefoed 1927 -- (Nielsen 1973:550 [ref. 6885], Cohen 1981:1085 [ref. 8491], Nielsen in Whitehead et al. 1986:1155 [ref. 13677], Cohen 1986:355 [ref. 5646], Stefanescu et al. 1990:136 [ref. 15963], Saldanha 1994:460 [ref. 22325], Santos et al. 1997:53 [ref. 23531], Arruda 1997:109 [ref. 24952], Saldanha & Biscoito 1997:200 [ref. 24962], McEachran & Fechhelm 1998:743 [ref. 23897], Bañón 2001:93 [ref. 25351], Carrassón & Matallanas 2002:417 [ref. 26676], Nielsen 2003:974 [ref. 27009], Balushkin & Prokofiev 2005:557 [ref. 28326], Goren & Galil 2002:150 [ref. 28414], Golani 2005:27 [ref. 37112], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Goren & Galil 2015:510 [ref. 33910], Bañón et al. 2016:317 [ref. 34397], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Carneiro et al. 2019:160 [ref. 37250], Bañón & Maño 2021:62 [ref. 38883], Golani 2021:29 [ref. 38303], Kovačić et al. 2021:32 [ref. 39014], Fermon et al. 2022:208 [ref. 39448] possible, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Cataetyx laticeps Koefoed 1927. Bythitidae. Distribution: Mediterranean Sea; Atlantic. Habitat: marine.

lepidogenys, Bythites Smith [H. M.] & Radcliffe [L.] in Radcliffe 1913:172, Pl. 16 (fig. 3) [Proceedings of the United States National Museum v. 44 (no. 1948); ref. 3579] East of Masbate Island, 12°25'18"N, 123°37'15"E, Philippines, Albatross station 5214, depth 218 fathoms. Holotype (unique): USNM 74152. •Valid as Abythites lepidogenys (Smith & Radcliffe 1913) -- (Nielsen & Cohen 1973:82 [ref. 3200], Machida in Masuda et al. 1984:101 [ref. 6441], Cohen & Nielsen 1978:45 [ref. 881], Nakabo 2000:449 [ref. 25086], Shinohara et al. 2001:308 [ref. 25995], Nakabo 2002:449 [ref. 26001], Shinohara et al. 2005:413 [ref. 28370]). •Valid as Bythites lepidogenys Smith & Radcliffe 1913 -- (Cohen et al. 1990:269 [ref. 14223], Nielsen 1999:1984 [ref. 24753]). •Valid as Cataetyx lepidogenys (Smith & Radcliffe 1913) -- (Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Hutchins 2001:23 [ref. 25847], Balushkin & Prokofiev 2005:557 [ref. 28326], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Cataetyx lepidogenys (Smith & Radcliffe 1913). Bythitidae. Distribution: Western Pacific. Habitat: marine.

leucos, Grammonus Osório [B.] 1917:121, Pl. 4 (fig. 3) [= Pl. 32 (fig. 3)] [Arquivo da Universidade de Lisboa v. 4; ref. 3318] Coast of Morocco, eastern Atlantic. Holotype (unique): MB (destroyed by fire 1978). Misspelled Gramanonus lencos on plate. •Questionably a synonym of Cataetyx alleni (Byrne 1906) -- (Cohen & Nielsen 1978:47 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448]). Current status: Uncertain as Cataetyx alleni (Byrne 1906). Bythitidae. Habitat: marine.

linsi, Barathronus Nielsen [J. G.], Mincarone [M. M.] & Di Dario [F.] 2015:55, Figs. 1-3 [Neotropical Ichthyology v. 13 (no. 1); ref. 33736] Potiguar basin, off Rio Grande do Norte, Brazil, 4°25.83'S, 36°37.38'W - 4°25.87'S, 36°36.48'W, depth 1964-2045 meters. Holotype (unique): MNRJ 41723. •Valid as Barathronus linsi Nielsen, Mincarone & Di Dario 2015 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2019:243 [ref. 36994]). Current status: Valid as Barathronus linsi Nielsen, Mincarone & Di Dario 2015. Bythitidae. Distribution: Off Rio Grande do Norte, northeast Brazil, western Atlantic. Habitat: marine.

longhursti, Oligopus Cohen [D. M.] 1964:8, Pl. 3 [Proceedings of the United States National Museum v. 116 (no. 3494); ref. 6891] Off Lagos, Nigeria, depth 5-10 fathoms. Holotype: USNM 187778. Paratypes: USNM 187779 (1), 191732 (2), 193678 (1). •Valid as Oligopus longhursti Cohen 1964 -- (Cohen & Nielsen 1978:49 [ref. 881], Nielsen 1990:575 [ref. 16246]). •Valid as Grammonus longhursti (Cohen 1964) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Nielsen & Cohen 2004:85 [ref. 28073], Nielsen 2007:375 [ref. 29358], Wirtz et al. 2007:26 [ref. 30263], Randall & Hughes 2008:143 [ref. 29910], Nielsen & Prokofiev 2010:192 [ref. 30790], Wirtz et al. 2013:119 [ref. 32972], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1954 [ref. 34583], Reiner 2019:112 [ref. 38139], Fermon et al. 2022:208 [ref. 39448] possible). Current status: Valid as Grammonus longhursti (Cohen 1964). Bythitidae. Distribution: Eastern Atlantic: Ivory Coast to Equaorial Guinea, including Canary Islands, Cape Verde Islands, and São Tomé and Principe. Habitat: marine.

longidorsalis, Meteoria Nielsen [J. G.] 2016:219, Fig. 6 [Cybium v. 40 (no. 3); ref. 34855] Hatteras Abyssal Plain, Atlantic, 28°43.1'N, 75°49.7'W to 28°45.6'N, 75°52.5'W, depth 5105 meters. Holotype: USNM 222924. Paratype: BMNH 2015.5.27.1 (1). •Valid as Meteoria longidorsalis Nielsen 2016 -- (Carneiro et al. 2019:161 [ref. 37250]). Current status: Valid as Meteoria longidorsalis Nielsen 2016. Bythitidae. Distribution: Atlantic Ocean. Habitat: marine.

longiventralis, Sciadonus Nielsen [J. G.] 2018:182, Figs. 6-7 [Cybium v. 42 (no. 2); ref. 36002] Off New South Wales, 35°0.00'S - 34°54.42'S, 151°16.30'E - 151°13.36'E, depth 1100 meters. Holotype (unique): NMV A5672. •Valid as Sciadonus longiventralis Nielsen 2018 -- (Nielsen et al. 2019:568 [ref. 36568], Melo et al. 2021:5 [ref. 38956]). Current status: Valid as Sciadonus longiventralis Nielsen 2018. Bythitidae. Distribution: Off New South Wales, Southwest Pacific. Habitat: marine.

lucayana, Lucifuga Møller [P. R.], Schwarzhans [W.], Iliffe [T. M.] & Nielsen [J. G.] 2006:27, Figs. 2-4 [Zootaxa No. 1223; ref. 28699] Lucayan Caverns, Grand Bahama Island, depth 12 meters. Holotype: ANSP 146475. Paratypes: ANSP 148497 (1); BMNH 1984.12.1.20 (1); ZMH 9517 (1), 9522 (1), 9566 (1). •Valid as Lucifuga lucayana Møller, Schwarzhans, Iliffe & Nielsen 2006 -- (Garrido-Linares & Acero P. 2006:289 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Hernández et al. 2020:27 [ref. 37642]). Current status: Valid as Lucifuga lucayana Møller, Schwarzhans, Iliffe & Nielsen 2006. Bythitidae. Distribution: Little Bahama Bank, western Atlantic. Habitat: freshwater, brackish.

maculatus, Barathronus Shcherbachev [Yu. N.] 1976:164, Fig. B [Voprosy Ikhtiologii v. 16 (no. 1) (art. 96); ref. 8665] Off Maputo, Mozambique, western Indian Ocean, 26°41'S, 34°06'E, depth 1000 meters. Holotype (unique): ZIN 42298. •Valid as Barathronus maculatus Shcherbachev 1976 -- (Cohen & Nielsen 1978:62 [ref. 881], Nielsen & Machida 1985:1 [ref. 5222], Nielsen 1986:357 [ref. 5699], Paxton et al. 1989:318 [ref. 12442], Okiyama & Kato 1997:224 [ref. 22940], Nielsen & Cohen in Nielsen et al. 1999:139 [ref. 24448], Nakabo 2000:451 [ref. 25086], Shinohara et al. 2001:308 [ref. 25995], Nakabo 2002:451 [ref. 26001], Shinohara et al. 2005:415 [ref. 28370], Bray et al. 2006:576 [ref. 29063], Nielsen et al. 2015:58 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen et al. 2019:563 [ref. 36568], Nielsen 2019:244 [ref. 36994]). Current status: Valid as Barathronus maculatus Shcherbachev 1976. Bythitidae. Distribution: Indo-West Pacific: South Africa to Japan, the Philippines and southeastern Australia. Habitat: marine.

maculatus, Saccogaster Alcock [A. W.] 1889:389 [15] [Annals and Magazine of Natural History (Series 6) v. 4 (no. 23); ref. 81] Bay of Bengal, 20°17'30"N, 88°51'E, Investigator station 14, depth 193 fathoms. Syntypes: ZSI F11673-74 (2). Type catalog: Menon & Yazdani 1968:150 [ref. 20743], Menon & Rama-Rao 1975:41 [ref. 22148]. On p. 15 of separate. Figured in Alcock 1900: Pl. 29 (figs. 2, 2a) [ref. 20536] as Saccogaster maculata [maculata is correct when in Saccogaster]. •Valid as Saccogaster maculata Alcock 1889 -- (Cohen & Nielsen 1972:448 [ref. 7606], Cohen & Nielsen 1978:50 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Nielsen et al. 2012:14 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Saccogaster maculata Alcock 1889. Bythitidae. Distribution: Indian Ocean. Habitat: marine.

marginatus, Brosmius Ayres [W. O.] 1854:102 [= 202] [The Pacific [newspaper] v. 3 and 4 (thru no. 6); ref. 157] San Francisco Bay, California, U.S.A. No types known. Appeared first as above on 27 Oct.; then in Ayres 1854:13 [ref. 18923]. •Valid as Brosmophycis marginata (Ayres 1854) -- (Cohen & Nielsen 1978:54 [ref. 881], Eschmeyer & Herald 1983:103 [ref. 9277], Matarese et al. 1989:218 [ref. 26885], McAllister 1990:137 [ref. 14674], Nielsen & Cohen in Nielsen et al. 1999:122 [ref. 24448], Mecklenburg et al. 2002:267 [ref. 25968], Nelson et al. 2004:92 [ref. 27807], Love et al. 2005:52 [ref. 37547], Page et al. 2013:95 [ref. 32708], Pietsch & Orr 2015:27 [ref. 34694], Kells et al. 2016:112 [ref. 35888], Burton & Lea 2019:51 [ref. 37205], Love et al. 2021:84 [ref. 39279], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Brosmophycis marginata (Ayres 1854). Bythitidae. Distribution: Eastern Pacific: southeastern Alaska (U.S.A.) south to Pacific coast of northern Baja California (Mexico). Habitat: marine.

marshallensis, Tuamotuichthys Nielsen [J. G.], Schwarzhans [W.], Møller [P. R.] & Randall [J. E.] 2006:169, Figs. 1-3 [Steenstrupia v. 29 (no. 2); ref. 29169] South end of Kwajalein Atoll, Marshall Islands, western Pacific, depth 46-55 meters. Holotype: BPBM 19961. Paratypes: ZMUC P771494 (1). •Valid as Tuamotuichthys marshallensis Nielsen, Schwarzhans, Møller & Randall 2006 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Tuamotuichthys marshallensis Nielsen, Schwarzhans, Møller & Randall 2006. Bythitidae. Distribution: Western Pacific: Marshall Islands. Habitat: marine.

matsubarai, Bythites Arai [R.] 1969:74, Figs. 1-4 [Japanese Journal of Ichthyology v. 16 (no. 2); ref. 7601] Off Heta, Suruga Bay, Japan. Holotype: NSMT-P 7102. Paratypes [not at BSKU in 1997]: BSKU 3475 (1), 7181 (1), 7194 (1). •Synonym of Abythites lepidogenys (Smith & Radcliffe 1913) -- (Nielsen & Cohen 1973:82 [ref. 3200], Cohen & Nielsen 1978:45 [ref. 881]). •Synonym of Cataetyx lepidogenys (Smith & Radcliffe 1913) -- (Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448]). Current status: Synonym of Cataetyx lepidogenys (Smith & Radcliffe 1913). Bythitidae. Habitat: marine.

melanomycter, Saccogaster Cohen [D. M.] 1981:374, Figs. 1-2 [Proceedings of the Biological Society of Washington v. 94 (no. 2); ref. 5586] Gairaca Bay, Santa Marta, Colombia, Caribbean Sea, depth 25 feet. Holotype (unique): MCZ 47362. •Valid as Saccogaster melanomycter Cohen 1981 -- (Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Nielsen 2003:974 [ref. 27009], Garrido-Linares & Acero P. 2006:289, 296 [ref. 28946]). •Valid as Parasaccogaster melanomycter (Cohen 1981) -- (Nielsen et al. 2012:27 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Parasaccogaster melanomycter (Cohen 1981). Bythitidae. Distribution: Western Atlantic, Caribbean Colombia (holotype only). Habitat: marine.

memorabilis, Cataetyx Meyer-Rochow [V. B.] 1970:39, Figs. 1-6; Pls. 7-8 [Abhandlungen und Verhandlungen des Naturwissenschaftlichen Vereins in Hamburg, Neue Folge v. 14 (for 1969); ref. 7759] Off Cape Town, South Africa, southeastern Atlantic, 33°51'S, 17°14'E, depth 1350 meters. Holotype: ZMH 4321. Paratypes: ZMH H4322 (2). Type catalog: Wilkens 1977:159 [ref. 22013]. •Synonym of Cataetyx laticeps Koefoed 1927 -- (Cohen 1981:1085 [ref. 8491], Cohen 1986:355 [ref. 5646], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448]). Current status: Synonym of Cataetyx laticeps Koefoed 1927. Bythitidae. Habitat: marine.

merretti, Paraphyonus Nielsen [J. G.] 2015:337, Figs. 14-15 [Zootaxa 4039 (no. 2); ref. 34016] Off Morocco, 34°6.0'N, 11°55.5'W, depth 4453-4457 meters. Holotype: BMNH 2014.10.31.1. Paratypes: BMNH 1994.5.9.5 (1), 2014.10.31.2 (1). •Valid as Paraphyonus merretti Nielsen 2015. Current status: Valid as Paraphyonus merretti Nielsen 2015. Bythitidae. Distribution: Off northwest Africa, eastern Atlantic. Habitat: marine.

messieri, Sirembo Günther [A.] 1878:19 [3] [Annals and Magazine of Natural History (Series 5) v. 2 (nos 7/8/9)(art. 2/22/28); ref. 2010] Off Middle Island, Messier Strait, Challenger station 306, depth 345 fathoms. Holotype (unique): BMNH 1887.12.7.44. On p. 3 of separate. See also Günther 1887:104, Pl. 23 (fig. B) [ref. 2013]. •Valid as Cataetyx messieri (Günther 1878) -- (Nakamura in Nakamura et al. 1986:152 [ref. 14235], Pequeño 1989:48 [ref. 14125], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Balushkin & Prokofiev 2005:557 [ref. 28326], Prokofiev 2005:119 [ref. 34466], Mincarone et al. 2008:56 [ref. 29626], Costa & Mincarone 2010:354 [ref. 37483], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Cataetyx messieri (Günther 1878). Bythitidae. Distribution: Southwestern Atlantic and southeastern Pacific: Chile, Argentina and Brazil. Habitat: marine.

minutus, Grammonus Nielsen [J. G.] & Prokofiev [A. M.] 2010:189, Figs. 1-3 [Ichthyological Research v. 57 (no. 2); ref. 30790] South China Sea, off Bay of Van Phong, central Vietnam, 12°40.0'N, 109°30.4'E, depth 97-119 meters. Holotype: ZMUC P771642. Paratypes: ZMUC P771643 (1). •Valid as Grammonus minutus Nielsen & Prokofiev 2010 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Grammonus minutus Nielsen & Prokofiev 2010. Bythitidae. Distribution: South China Sea, off Vietnam. Habitat: marine.

mollis, Aphyonus Goode [G. B.] & Bean [T. H.] 1886:163 [Bulletin of the Museum of Comparative Zoology v. 12 (no. 5); ref. 1844] Gulf of Mexico off Cuba, 24°36'N, 84°05'W, depth 955 fathoms. Holotype (unique): MCZ 28002. •Synonym of Aphyonus gelatinosus Günther 1878 -- (Nielsen 1969:15 [ref. 3195], Cohen & Nielsen 1978:61 [ref. 881], Nielsen 1990:576 [ref. 16246], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Ohashi et al. 2013:112 [ref. 33255], Nielsen 2015:324 [ref. 34016]). Current status: Synonym of Aphyonus gelatinosus Günther 1878. Bythitidae. Habitat: marine.

mowbrayi, Grammonus Grey [M.] 1951:154, Fig. 1 [Copeia 1951 (no. 2); ref. 12892] Off Bermuda. Holotype: FMNH 49185. Paratypes: FMNH 50000 (4). Type catalog: Ibarra & Stewart 1987:42 [ref. 12367]. Author sometimes seen as Torre. •Synonym of Oligopus claudei Torre y Huerta 1930 -- (Cohen & Nielsen 1978:49 [ref. 881]). •Synonym of Grammonus claudei (Torre y Huerta 1930) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Smith-Vaniz et al. 1999:155 [ref. 25013], Faloh-Gandarilla et al. 2016:10 [ref. 35177]). Current status: Synonym of Grammonus claudei (Torre y Huerta 1930). Bythitidae. Habitat: marine.

multidens, Barathronus Nielsen [J. G.] 1984:583, Fig. 7 [Copeia 1984 (no. 3); ref. 5286] North Atlantic, 32°54.6'N, 11°40.0'W, depth 3610-3636 meters. Holotype: BMNH 1983.2.28.1. Paratypes: ZMUC P77712 (1). •Valid as Barathronus multidens Nielsen 1984 -- (Nielsen in Whitehead et al. 1986:1168 [ref. 13677], Nielsen & Cohen in Nielsen et al. 1999:139 [ref. 24448], Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1956 [ref. 34583], Evseenko et al. 2018:137 [ref. 35999], Carneiro et al. 2019:160 [ref. 37250], Nielsen 2019:246 [ref. 36994]). Current status: Valid as Barathronus multidens Nielsen 1984. Bythitidae. Distribution: North Atlantic including Mid-Atlantic Ridge. Habitat: marine.

nagaredai, Grammonus Randall [J. E.] & Hughes [M. J.] 2008:139, Figs. 1-5 [Pacific Science v. 63 (no. 1) [for 2009]; ref. 29910] Cave in 6 m, Wai'anae coast, off Kea'au Beach Park, O'ahu, Hawaiian Islands. Holotype: BPBM 40668. Paratypes: USNM 391918 (1). •Valid as Grammonus nagaredai Randall & Hughes 2008 -- (Nielsen & Prokofiev 2010:192 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Grammonus nagaredai Randall & Hughes 2008. Bythitidae. Distribution: O'ahu, Hawaiian Islands. Habitat: marine.

nielseni, Cataetyx Balushkin [A. V.] & Prokofiev [A. M.] 2005:554 [541 in English], Figs. 1-3. [Voprosy Ikhtiologii v. 45 (no. 4); ref. 28326] South Pacific, Heracles Bank, 58°37'S, 140°35'W, depth 265 meters. Holotype (unique): ZIN 53445. •Valid as Cataetyx nielseni Balushkin & Prokofiev 2005 -- (Møller & Nielsen 2015:729 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Cataetyx nielseni Balushkin & Prokofiev 2005. Bythitidae. Distribution: Heracles Bank (South Pacific), Tasman Sea and New Zealand region. Habitat: marine.

niger, Oligopus Risso [A.] 1827:338 [Histoire naturelle des principales productions de l'Europe méridionale v. 3; ref. 3757] Nice, France, northwestern Mediterranean Sea. No types known. Appeared first as "l'Oligopode noir" of Risso in Cuvier 1816. •Synonym of Oligopus ater Risso 1810 -- (Cohen & Nielsen 1978:49 [ref. 881], Nielsen in Whitehead et al. 1986:1156 [ref. 13677]). •Synonym of Grammonus ater (Risso 1810) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448]). Current status: Synonym of Grammonus ater (Risso 1810). Bythitidae. Habitat: marine.

nigra, Microbrotula Gosline [W. A.] 1953:220 [Copeia 1953 (no. 4); ref. 1859] Off Waikiki reef, Oahu Island, Hawaiian Islands, depth about 30 feet. Holotype (unique): USNM 179898 [ex UH 1684]. Subjectively invalid; secondarily preoccupied by Oligopus niger Risso 1827 when both are in Oligopus, replaced by Oligopus waikiki Cohen 1964. •Synonym of Oligopus waikiki Cohen 1964 -- (Cohen & Nielsen 1978:49 [ref. 881]). •Synonym of Grammonus waikiki (Cohen 1964) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Mundy 2005:247 [ref. 28379], Randall & Hughes 2008:137 [ref. 29910]). 2°Homonym. Current status: Synonym of Grammonus waikiki (Cohen 1964). Bythitidae. Habitat: marine.

nigripinnis, Diplacanthopoma Gilchrist [J. D. F.] & von Bonde [C.] 1924:20, Pl. 4 (fig. 2) [Report Fisheries and Marine Biological Survey, Union of South Africa v. 3 (no. 7) (1922); ref. 1649] Off Durban, KwaZulu-Natal, South Africa, southwestern Indian Ocean, Pickle station 411, depth 1281 meters. Holotype (unique): whereabouts unknown. Genus Diplacanthopoma is neuter, therefore the species name should be nigripinne. •Valid as Diplacanthopoma nigripinnis Gilchrist & von Bonde 1924 -- (Cohen 1986:356 [ref. 5646], Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Diplacanthopoma nigripinne Gilchrist & von Bonde 1924. Current status: Valid as Diplacanthopoma nigripinne Gilchrist & von Bonde 1924. Bythitidae. Distribution: Southwestern Indian Ocean, southern Indian Ocean: KwaZulu-Natal (South Africa); Saint Paul and Amsterdam Island (France). Habitat: marine.

nigrita, Coryphaena (Leptopodus) Goldfuss [G. A.] 1820:68 [Handbuch der Zoologie 2 parts; ref. 1829] Mediterranean Sea. No types known. •Synonym of Grammonus ater (Risso 1810). Current status: Synonym of Grammonus ater (Risso 1810). Bythitidae. Habitat: marine.

niki, Cataetyx Cohen [D. M.] 1981:1096, Figs. 7-8 [Proceedings of the Biological Society of Washington v. 94 (no. 4); ref. 8491] Eastern Atlantic, 35°04'S, 24°20'E, depth 1000 meters. Holotype: ZIN 45774. Paratypes: USNM 226788 (1). •Valid as Cataetyx niki Cohen 1981 -- (Cohen 1986:355 [ref. 5646], Paxton et al. 1989:316 [ref. 12442] as miki, Paulin et al. 1989:133 [ref. 24556], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Balushkin & Prokofiev 2005:557 [ref. 28326], Hoese & Gates 2006:569 [ref. 28997], Gomon 2008:357 [ref. 30616], Møller & Nielsen 2015:730 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Megacataetyx niki (Cohen 1981) -- (Prokofiev 2005:121 [ref. 34466]). Current status: Valid as Megacataetyx niki (Cohen 1981). Bythitidae. Distribution: Southern Hemisphere. Habitat: marine.

nikoliviae, Saccogaster Nielsen [J. G.], Schwarzhans [W.] & Cohen [D. M.] 2012:16, Fig. 11, 12 [Zootaxa No. 3579; ref. 32315] Imperieuse L23 transect, 17°31'44"S, 118°50'37"E to 17°32'30"S, 118°50'31"E, off northwestern Australia, depth 407-403 meters. Holotype: NMV A 29674-010. Paratypes: CSIRO H 6602-01 (1), NMV A 29670-021 (1). •Valid as Saccogaster nikoliviae Nielsen, Schwarzhans & Cohen 2012 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Saccogaster nikoliviae Nielsen, Schwarzhans & Cohen 2012. Bythitidae. Distribution: Northwestern Australia. Habitat: marine.

normae, Saccogaster Cohen [D. M.] & Nielsen [J. G.] 1972:463, Figs. 1e, 6, 7 [Proceedings of the Biological Society of Washington v. 85 (no. 39); ref. 7606] Off the coast of Peru, 4°57'S, 81°23'W, depth 118-133 meters. Holotype: USNM 207356. Paratypes: IMARPE 421 (1). •Valid as Saccogaster normae Cohen & Nielsen 1972 -- (Cohen & Nielsen 1978:50 [ref. 881], Chirichigno F. & Vélez D. 1998:228 [ref. 24555], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Castellanos-Galindo et al. 2006:199 [ref. 28944]). •Valid as Parasaccogaster normae (Cohen & Nielsen 1972) -- (Nielsen et al. 2012:29 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Parasaccogaster normae (Cohen & Nielsen 1972). Bythitidae. Distribution: Southeastern Pacific, northern Peru and Pacific coasts of Costa Rica. Habitat: marine.

okamotoi, Bidenichthys Møller [P. R.], Schwarzhans [W.], Lauridsen [H.] & Nielsen [J. G.] 2022:3, Figs. 1, 2, 3A-B [Journal of Marine Science and Engineering v. 9 (no. 12) [for 2021]; ref. 38861] Koko Seamount, central northern Pacific, 35.36'N, 171.21'E, depth 315 meters. Holotype: ZMUC P239717. Paratype: ZMUC P2397390 (1). •Valid as Bidenichthys okamotoi Møller, Schwarzhans, Lauridsen & Nielsen 2022. Current status: Valid as Bidenichthys okamotoi Møller, Schwarzhans, Lauridsen & Nielsen 2022. Bythitidae. Distribution: Northern Pacific: Koko seamount, Emperor Chain. Habitat: marine.

opisthodon, Grammonus Smith [J. L. B.] 1934:92, Pl. 6 (fig. B) [Transactions of the Royal Society of South Africa v. 22 (pt 1); ref. 4064] Port Alfred, South Africa, southwestern Indian Ocean. Holotype (unique): SAIAB [formerly RUSI] 297. •Valid as Grammonoides opisthodon (Smith 1934) -- (Cohen & Nielsen 1978:48 [ref. 881], Cohen 1986:356 [ref. 5646]). •Not treated in Grammonus -- (Nielsen & Prokofiev 2010 [ref. 30790]). •Valid as Grammonus opisthodon Smith 1934 -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Anderson & Cohen 2022:264 [ref. 39707]). Current status: Valid as Grammonus opisthodon Smith 1934. Bythitidae. Distribution: Southeastern Atlantic, southwestern Indian Ocean: Camps Bay south to Cape of Good Hope (South Africa), then east to Port Alfred (Eastern Cape, South Africa). Habitat: marine.

pacificus, Barathronus Nielsen [J. G.] & Eagle [R. J.] 1974:1067, Fig. 1 [Journal of the Fisheries Research Board of Canada v. 31 (no. 6); ref. 7525] Northeastern Pacific, 700 kilometers off Oregon, U.S.A., 44°41.1'N, 133°24.1'W, depth 3784 meters. Holotype: USNM 214114 [ex OSUO 1915]. Paratypes: OSUO 1965 (1), ZMUC P77538 (1). •Valid as Barathronus pacificus Nielsen & Eagle 1974 -- (Cohen & Nielsen 1978:62 [ref. 881], Okiyama & Kato 1997:222 [ref. 22940], Nielsen & Cohen in Nielsen et al. 1999:139 [ref. 24448], Love et al. 2005:52 [ref. 37547], Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen et al. 2019:565 [ref. 36568], Nielsen 2019:248 [ref. 36994], Love et al. 2021:84 [ref. 39279], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Barathronus pacificus Nielsen & Eagle 1974. Bythitidae. Distribution: North and southeast Atlantic, southern Australia and southwest and northeast Pacific. Habitat: marine.

parfaiti, Alexeterion Vaillant [L. L.] 1888:283, Pl. 25 (figs. 2-2b) [Expéditions scientifiques du "Travailleur" et du "Talisman"; ref. 4496] Northeastern Atlantic between Azores and France, depth 5005 meters [44°29'N, 13°32'W]. Holotype (unique): MNHN 1886-0554. •Valid as Barathronus parfaiti (Vaillant 1888) -- (Nielsen 1969:53 [ref. 3195], Nielsen 1973:555 [ref. 6885], Cohen & Nielsen 1978:62 [ref. 881], Nielsen in Whitehead et al. 1986:1169 [ref. 13677], Santos et al. 1997:53 [ref. 23531], Arruda 1997:110 [ref. 24952], Nielsen & Cohen in Nielsen et al. 1999:139 [ref. 24448], Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2016:1956 [ref. 34583], Vieira et al. 2016:[6] [ref. 34869] as cf. parfaiti, Carneiro et al. 2019:160 [ref. 37250], Nielsen 2019:252 [ref. 36994]). Current status: Valid as Barathronus parfaiti (Vaillant 1888). Bythitidae. Distribution: Northeastern Atlantic: between France and the Azores. Habitat: marine.

parva, Saccogaster Cohen [D. M.] & Nielsen [J. G.] 1972:459, Fig. 5 [Proceedings of the Biological Society of Washington v. 85 (no. 39); ref. 7606] Off Brazil, southwestern Atlantic, 24°21'S, 43°54'W [not 24°33'S, 43°32'W], 500 meters [not 1200 meters as published]. Holotype (unique): ISH 1922-1968. Type catalog and locality information: Krefft 1978:14 [ref. 9884]. •Valid as Saccogaster parva Cohen & Nielsen 1972 -- (Cohen & Nielsen 1978:50 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Menezes & Figueiredo in Menezes et al. 2003:60 [ref. 27192], Nielsen et al. 2012:19 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Saccogaster parva Cohen & Nielsen 1972. Bythitidae. Distribution: Southwestern Atlantic, southern Brazil (holotype only). Habitat: marine.

pauciradiatus, Parasciadonus Nielsen [J. G.] 1997:79, Fig. 24 [Mémoires du Muséum National d'Histoire Naturelle, Paris (N. S.) (Série A) Zoologie v. 174; ref. 23255] Loyalty Islands (New Caledonia), 20°18.09'S, 167°17.7'E, depth 3680-3700 meters. Holotype (unique): MNHN 1994-767. •Valid as Parasciadonus pauciradiatus Nielsen 1997 -- (Nielsen & Cohen in Nielsen et al. 1999:141 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Fricke et al. 2011:367 [ref. 31242], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Meteoria pauciradiatus (Nielsen 1997) -- (Nielsen 2016:220 [ref. 34855]). Current status: Valid as Meteoria pauciradiatus (Nielsen 1997). Bythitidae. Distribution: Southwestern Pacific: Loyalty Islands (New Caledonia). Habitat: marine.

pautzkei, Brosmophyciops Schultz [L. P.] in Schultz et al. 1960:386, Fig. 128 [Bulletin of the United States National Museum No. 202, v. 2; ref. 3972] Lagoon at Arji Island, Bikini Atoll, western Pacific, depth 20-40 feet. Holotype: USNM 142023. Paratypes: USNM 142024-26 (1, 1, 1). •Valid as Brosmophyciops pautzkei Schultz 1960 -- (Cohen & Nielsen 1978:53 [ref. 881], Dor 1984:58 [ref. 29757], Machida in Masuda et al. 1984:101 [ref. 6441], Paxton et al. 1989:315 [ref. 12442], Winterbottom et al. 1989:14 [ref. 13251], Randall et al. 1990:53 [ref. 15987], Goren & Dor 1994:15 [ref. 25356], Randall et al. 1997:53 [ref. 25919], Myers 1999:66 [ref. 23965], Fricke 1999:102 [ref. 24106], Nielsen & Cohen in Nielsen et al. 1999:121 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Randall 1999:8 [ref. 25829] as Brosmophysiops, Allen 2000:95 [ref. 25868], Allen 2000:85 [ref. 37268], Nakabo 2000:450 [ref. 25086], Hutchins 2001:23 [ref. 25847], Nakabo 2002:450 [ref. 26001], Allen & Adrim 2003:25 [ref. 26830], Myers & Donaldson 2003:614 [ref. 27495], Randall et al. 2004:8 [ref. 27624] as Brosmoyphysiops, Heemstra et al. 2004:3317 [ref. 27945], Hoese & Gates 2006:569 [ref. 28997], Allen & Erdmann 2012:132 [ref. 31980], Fricke et al. 2018:85 [ref. 35805], Golani & Fricke 2018:40 [ref. 36273], Anderson & Cohen 2022:263 [ref. 39707], Allen & Erdmann 2024:153 [ref. 40796]). Current status: Valid as Brosmophyciops pautzkei Schultz 1960. Bythitidae. Distribution: Red Sea; Indo-West Pacific: KwaZulu-Natal (South Africa), Comoros, Madagascar and Mascarenes east to Marshall Islands and PitcairnGroup, north to southern Japan, south to northern Australia. Habitat: marine.

paxtoni, Melodichthys Nielsen [J. G.] & Cohen [D. M.] 1986:385, Fig. 4 [Cybium v. 10 (no. 4); ref. 6039] Southeast of Cape Everard, Victoria, Australia, depth 165-275 meters. Holotype: AMS E.5264. •Valid as Melodichthys paxtoni Nielsen & Cohen 1986 -- (Nielsen & Cohen in Nielsen et al. 1999:124 [ref. 24448]). •Valid as Fiordichthys paxtoni (Nielsen & Cohen 1986) -- (Nielsen et al. 2004:40 [ref. 27738], Hoese & Gates 2006:572 [ref. 28997]). •Valid as Bidenichthys paxtoni (Nielsen & Cohen 1986) -- (Møller & Nielsen 2015:724 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Møller et al. 2021:3 [ref. 38861]). Current status: Valid as Bidenichthys paxtoni (Nielsen & Cohen 1986). Bythitidae. Distribution: Southwest Australia and northern New Zealand. Habitat: marine.

pedicellaris, Sciadonus Garman [S.] 1899:172, Pl. F (fig. 4) [Memoirs of the Museum of Comparative Zoology v. 24; ref. 1540] Eastern Pacific, off Cocos Islands, 5°31'N, 86°31'W, Albatross station 3365, depth 1010 fathoms. Syntypes: MCZ 28628 (2). Nielsen 2018:183 [ref. 36002] has holotype MCZ 28628. •Valid as Sciadonus pedicellaris Garman 1899 -- (Nielsen 1969:63 [ref. 3195], Nielsen & Eagle 1974:1071 [ref. 7525], Cohen & Nielsen 1978:63 [ref. 881], Pequeño 1989:49 [ref. 14125], Santos et al. 1997:53 [ref. 23531], Arruda 1997:110 [ref. 24952], McEachran & Fechhelm 1998:741 [ref. 23897], Nielsen & Cohen in Nielsen et al. 1999:142 [ref. 24448], Love et al. 2005:52 [ref. 37547], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Nielsen 2018:183 [ref. 36002], Carneiro et al. 2019:161 [ref. 37250], Nielsen et al. 2019:569 [ref. 36568], Melo et al. 2021:5 [ref. 38956], Love et al. 2021:84 [ref. 39279], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Sciadonus pedicellaris Garman 1899. Bythitidae. Distribution: Northeastern Atlantic; southwestern Pacific; eastern Pacific: Oregon (U.S.A.) south to Chile. Habitat: marine.

persicinus, Brosmodorsalis Paulin [C. D.] & Roberts [C. D.] 1989:356, Figs. 1-3 [Journal of Natural History v. 23 (no. 2); ref. 12435] Crater Bay, Mayor Island, Bay of Plenty, 37°17.2'S, 176°16.4'E, New Zealand, depth 12 meters. Holotype: NMNZ P.21466. Paratypes: NMNZ P.18188 (9). Type catalog: Hardy 1990:9 [ref. 18942]. •Valid as Brosmodorsalis persicinus Paulin & Roberts 1989 -- (Paulin et al. 1989:132 [ref. 24556], Paulin & Roberts 1992:40 [ref. 24625], Nielsen & Cohen in Nielsen et al. 1999:119 [ref. 24448], Møller & Nielsen 2015:726 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Brosmodorsalis persicinus Paulin & Roberts 1989. Bythitidae. Distribution: New Zealand. Habitat: marine.

plagiophthalmus, Parabrotula Zugmayer [E.] 1911:10 [Bulletin de l'Institut Océanographique (Monaco) No. 193; ref. 6161] Northeast of Azores, northeastern Atlantic, 43°04'N, 19°42'W, station 2870, depth 0-1500 meters. Holotype (unique): MOM 0091-0878. Species illustrated and described in more detail in Zugmayer 1911:129, Pl. 6 (fig. 5) [ref. 4846]. •Valid as Parabrotula plagiophthalmus Zugmayer 1911 -- (Nielsen 1973:548 [ref. 6885], Nielsen in Whitehead et al. 1986:1152 [ref. 13677], Santos et al. 1997:54 [ref. 23531], Arruda 1997:109 [ref. 24952]). •Valid as Parabrotula plagiophthalma Zugmayer 1911 -- (Anderson 1986:343 [ref. 5633], Kimura et al. 1990 [ref. 19556], Nielsen 1990:891 [ref. 16246], Nielsen et al. 1990:437 [ref. 19090], Miya & Nielsen 1991:1 [ref. 19093], Nakabo 2000:1045 [ref. 25182], Shinohara et al. 2001:309 [ref. 25995], Nakabo 2002:1045 [ref. 26193], Moore et al. 2003:208 [ref. 27076], Nielsen in Carpenter & De Angelis 2016:2763 [ref. 34618], Campbell et al. 2017:338 [ref. 35124], Carneiro et al. 2019:161 [ref. 37250], Sutton et al. 2020:251 [ref. 37832], Hilton et al. 2021:3 [ref. 40799], Fermon et al. 2022:208 [ref. 39448] with question, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Parabrotula plagiophthalma Zugmayer 1911. Bythitidae. Distribution: Circumglobal. Habitat: marine.

platycephalus, Anacanthobythites Anderson [M. E.] 2008:151, Figs. 1-2 [Species Diversity v. 13 (no. 2-3); ref. 29964] Lucky Bay, Western Australia, 34°08'S, 122°15'E, depth 8-10 meters. Holotype (unique): WAM P.28297-008. •Valid as Anacanthobythites platycephalus Anderson 2008 -- (Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Anacanthobythites platycephalus Anderson 2008. Bythitidae. Distribution: Western Australia. Habitat: marine.

platycephalus, Cataetyx Smith [H. M.] & Radcliffe [L.] in Radcliffe 1913:169, Pl. 16 (fig. 1) [Proceedings of the United States National Museum v. 44 (no. 1948); ref. 3579] Molucca Passage, 0°37'00"N, 127°15'00"E, Molucca Islands, Indonesia, Albatross station 5618, depth 417 fathoms. Holotype: USNM 74150. Paratype: USNM 398909 (1). •Possibly a synonym of Pseudonus squamiceps (Lloyd 1909) -- (Nielsen & Cohen in Nielsen et al. 1999:108 [ref. 24448]). •Valid as Pseudonus playcephalus (Smith & Radcliffe 1913) -- (Nielsen 1999:1984 [ref. 24753]). •Synonym of Pseudonus squamiceps (Lloyd 1907) -- (Nielsen 2011:60 [ref. 31293]). Current status: Synonym of Pseudonus squamiceps (Lloyd 1907). Bythitidae. Habitat: marine.

platyrhynchus, Cataetyx Machida [Y.] in Okamura & Kitajima 1984:263, Pl. 183 [Fishes of the Okinawa Trough and the adjacent waters; ref. 8057] Okinawa Trough, 25°17.1'N, 124°46.8'N, depth 910-990 meters. Holotype (unique): BSKU 28697. •Valid as Cataetyx platyrhynchus Machida 1984 -- (Machida in Masuda et al. 1984:101 [ref. 6441], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Nakabo 2000:449 [ref. 25086], Nakabo 2002:449 [ref. 26001], Balushkin & Prokofiev 2005:557 [ref. 28326], Shinohara et al. 2005:414 [ref. 28370], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Cataetyx platyrhynchus Machida 1984. Bythitidae. Distribution: Western North Pacific. Habitat: marine.

polyactis, Microbrotula Anderson [M. E.] 2005:38, Fig. 2 [Zootaxa No. 1006; ref. 28240] Northern end of Tijou Reef, 13°05'S, 143°57'E, Cape York Peninsula, Queensland, Australia. Holotype: AMS I.20779-128. Paratypes: USNM 227221 (1), 227224 (2), 227227 (5); WAM P.30811-005 (1). Type catalog: Moore et al. 2008:11 [ref. 30117]. Schwarzhans & Nielsen 2011:153 [ref. 31714] are the first revisers, selecting bentleyi over polyactis. •Valid as Microbrotula polyactis Anderson 2005 -- (Hoese & Gates 2006:573 [ref. 28997], Anderson 2007:7 [ref. 29164]). •Synonym of Microbrotula bentleyi Anderson 2005 -- (Schwarzhans & Nielsen 2011:153 [ref. 31714]). Current status: Synonym of Microbrotula bentleyi Anderson 2005. Bythitidae. Distribution: Western Pacific: Philippines to Australia [if valid]. Habitat: marine.

punicea, Microbrotula Anderson [M. E.] 2007:5, Figs. 2-3 [Species Diversity v. 12 (no. 1); ref. 29164] Denham Bay, 29°16.3'S, 177°57.0'W, Raoul Island, Kermadec Islands. Holotype: NMNZ P.41062. Paratypes: NMNZ P.41036 (3), 41086 (1). •Valid as Microbrotula punicea Anderson 2007 -- (Schwarzhans & Nielsen 2011:156 [ref. 31714], Duffy & Ahyong 2015:109 [ref. 36167], Møller & Nielsen 2015:734 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Microbrotula punicea Anderson 2007. Bythitidae. Distribution: Southwestern Pacific: Kermadec Islands endemic. Habitat: marine.

queenslandica, Microbrotula Anderson [M. E.] 2005:40, Fig. 3 [Zootaxa No. 1006; ref. 28240] One Tree Island, 28°30'S, 152°05'E, Great Barrier Reef, Queensland, Australia. Holotype: AMS I.20206-041. Paratypes: AMS I.20206-041 (1). •Valid as Microbrotula queenslandica Anderson 2005 -- (Hoese & Gates 2006:573 [ref. 28997], Anderson 2007:7 [ref. 29164], Schwarzhans & Nielsen 2011:157 [ref. 31714], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Microbrotula queenslandica Anderson 2005. Bythitidae. Distribution: Queensland, Australia. Habitat: marine.

randalli, Microbrotula Cohen [D. M.] & Wourms [J. P.] 1976:82, Fig. 1 [Proceedings of the Biological Society of Washington v. 89 (no. 5); ref. 7046] Small caves in reef front, Fagafele Bay, Tutuila, American Samoa, depth 30-38 meters. Holotype: BPBM 17507 (not found). Paratypes: BPBM 18032 (1, not found); USNM 214112 (2), 214703 (1). •Valid as Microbrotula randalli Cohen & Wourms 1976 -- (Nielsen & Cohen in Nielsen et al. 1999:107 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Machida 2000:124 [ref. 25106], Allen & Adrim 2003:25 [ref. 26830], Anderson 2005:35 [ref. 28240], Anderson 2007:7 [ref. 29164]). •Valid as Ematops randalli (Cohen & Wourms 1976) -- (Schwarzhans & Nielsen 2011:159 [ref. 31714], Allen & Erdmann 2012:136 [ref. 31980], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Allen & Erdmann 2024:154 [ref. 40796]). Current status: Valid as Ematops randalli (Cohen & Wourms 1976). Bythitidae. Distribution: Eastern Indian Ocean, western Pacific: Christmas Island (Australia), Indonesia, Philippines, Papua New Guinea, Vanuatu and Samoa. Habitat: marine.

raniceps, Diplacanthopoma Alcock [A. W.] 1898:154 [Annals and Magazine of Natural History (Series 7) v. 2 (no. 8) (art. 22); ref. 92] Andaman Sea, 13°27'N, 93°14'30"E, Investigator station 222, depth 405 fathoms. Syntypes: ZSI F117/1 (1), F118/1 (1), F139/1 (1). Type catalog: Menon & Yazdani 1968:148 [ref. 20743], Menon & Rama-Rao 1975:40 [ref. 22148]. Figured in Alcock 1899: Pl. 26 (figs. 2, 2a) [ref. 20535]. •Valid as Diplacanthopoma raniceps Alcock 1898 -- (Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Diplacanthopoma raniceps Alcock 1898. Bythitidae. Distribution: Indian Ocean. Habitat: marine.

rassi, Aphyonus Nielsen [J. G.] 1975:35, Fig. [Trudy Instituta Okeanologii Imeni P.P. Shirshova v. 100; ref. 7450] Caribbean Sea, 12°59'N, 62°59'W, depth 2610-2700 meters (but perhaps caught shallower in midwater). Holotype (unique): ZISP 41538. •Valid as Aphyonus rassi Nielsen 1975 -- (Cohen & Nielsen 1978:61 [ref. 881], Nielsen 1990:576 [ref. 16246], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Nielsen 2003:976 [ref. 27009], Garrido-Linares & Acero P. 2006:288 [ref. 28946], Nielsen 2016:1956 [ref. 34583]). •Valid as Paraphyonus rassi (Nielsen 1975) -- (Nielsen 2015:339 [ref. 34016], Nielsen et al. 2019:567 [ref. 36568]). Current status: Valid as Paraphyonus rassi (Nielsen 1975). Bythitidae. Distribution: Atlantic Ocean and Australia. Habitat: marine.

rhamphidognatha, Saccogaster Cohen [D. M.] 1987:2, Fig. 1 [Contributions in Science (Los Angeles) No. 385; ref. 6040] Off Mississippi Delta, Gulf of Mexico, 29°13.5'N, 88°16.5'W, depth 210 meters. Holotype (unique): LACM 44189-1. •Valid as Saccogaster rhamphidognatha Cohen 1987 -- (McEachran & Fechhelm 1998:747 [ref. 23897], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Nielsen 2003:974 [ref. 27009], Garrido-Linares & Acero P. 2006:289 [ref. 28946]). •Valid as Parasaccogaster rhamphidognatha (Cohen 1987) -- (Nielsen et al. 2012:32 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Parasaccogaster rhamphidognatha (Cohen 1987). Bythitidae. Distribution: Western Atlantic: Gulf of Mexico (U.S.A.). Habitat: marine.

riversandersoni, Diplacanthopoma Alcock [A. W.] 1895:144 [Annals and Magazine of Natural History (Series 6) v. 16 (no. 92); ref. 14572] Arabian Sea, 22°14'25"N, 67°08'55"E, Investigator station 184, depth 947 fathoms. Holotype: ZSI F14136. Type catalog: Menon & Yazdani 1968:148 [ref. 20743], Menon & Rama-Rao 1975:40 [ref. 22148]. Originally as Rivers-Andersoni. Figured in Alcock 1897: Pl. 17 (fig. 1) [ref. 20533]. •Valid as Diplacanthopoma riversandersoni Alcock 1895 -- (Nielsen & Cohen in Nielsen et al. 1999:102 [ref. 24448] as rivers-andersoni, Mundy 2005:247 [ref. 28379] as cf. riversandersoni, Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Diplacanthopoma riversandersoni Alcock 1895. Bythitidae. Distribution: Indo-West Pacific. Habitat: marine.

robinsi, Sciadonus Nielsen [J. G.] 2018:185, Fig. 14 [Cybium v. 42 (no. 2); ref. 36002] Off northeastern Brazil, 1°58'N, 40°54'W, depth 4416 - 4422 meters. Holotype (unique): UF 187413. Named after Richard Robins and Rob Robins, the correct species epithet would be robinsorum (Art. 31.1.2). •Valid as Sciadonus robinsi Nielsen 2018 -- (Melo et al. 2021:6 [ref. 38956]). Current status: Valid as Sciadonus robinsi Nielsen 2018. Bythitidae. Distribution: Western Atlantic: off northeastern Brazil. Habitat: marine.

robinsorum, Calamopteryx Cohen [D. M.] 1973:347, Fig. 7 [Proceedings of the Biological Society of Washington v. 86 (no. 28); ref. 7138] Western Atlantic, 9°38.9'N, 79°15.3'W to 9°40.2'N, 79°17.4'W, Pilsbury station 425, depth 64-70 meters. Holotype: USNM 209256 [ex UMML 26748]. Paratypes: ANSP 126924-25 (1, 1); UF 222293 [ex UMML 22293] (3); USNM 39494 (2), 209257-58 (4, 2); ZMUC (2). Type catalog: Böhlke 1984:135 [ref. 13621]. •Valid as Calamopteryx robinsorum Cohen 1973 -- (Cohen & Nielsen 1978:46 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:99 [ref. 24448], Nielsen 2003:974 [ref. 27009], Nelson et al. 2004:92 [ref. 27807], Garrido-Linares & Acero P. 2006:289, 296 [ref. 28946], Schwarzhans & Nielsen 2011:148 [ref. 31714], Page et al. 2013:95 [ref. 32708], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Calamopteryx robinsorum Cohen 1973. Bythitidae. Distribution: Western Atlantic. Habitat: marine.

robusta, Bellottia Nielsen [J. G.], Ross [S. W.] & Cohen [D. M.] 2009:47, Figs. 1-3 [Zootaxa No. 2018; ref. 30092] Gulf of Mexico, 27°45'N, 91°13'W, depth 535 meters. Holotype: USNM 394117. Paratypes: TCWC 10956.01 (1), 10957.01 (1); USNM 394118 (1), 394119 (1); 394120 (1); 394121 (1), 394122 (1), 394123 (1), 394124 (1); ZUMC P771652 (1), P771653 (1). •Valid as Bellottia robusta Nielsen, Ross & Cohen 2009-- (Fernández-Zapico et al. 2013:195 [ref. 32657], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Bellottia robusta Nielsen, Ross & Cohen 2009. Bythitidae. Distribution: Western Atlantic: northern Gulf of Mexico (U.S.A.). Habitat: marine.

robustus, Grammonus Smith [H. M.] & Radcliffe [L.] in Radcliffe 1913:168, Pl. 13 (fig. 4) [Proceedings of the United States National Museum v. 44 (no. 1948); ref. 3579] Between Cebu and Leyte, 10°38'00"N, 124°13'08"E, Philippines, Albatross station 5409, depth 189 fathoms. Holotype (unique): USNM 74149. •Valid as Oligopus robustus (Smith & Radcliffe 1913) -- (Cohen & Nielsen 1978:49 [ref. 881], Machida in Masuda et al. 1984:101 [ref. 6441], Uiblein et al. 1994:18 [ref. 21798], Klausewitz & Uiblein 1994:21 [ref. 22366], Klausewitz 1994:465 [ref. 23564], Nielsen 1999:1984 [ref. 24753], Nakabo 2000:449 [ref. 25086], Shinohara et al. 2001:308 [ref. 25995], Nakabo 2002:449 [ref. 26001], Shinohara et al. 2005:414 [ref. 28370]). •Valid as Grammonus robustus Smith & Radcliffe 1913 -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Manilo & Bogorodsky 2003:S99 [ref. 27377], Nielsen & Cohen 2004:85 [ref. 28073], Nielsen 2007:375 [ref. 29358], Randall & Hughes 2008:143 [ref. 29910], Nielsen & Prokofiev 2010:192 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432], Golani & Fricke 2018:40 [ref. 36273], Kim et al. 2020:73 [ref. 39118], Anderson & Cohen 2022:265 [ref. 39707]). Current status: Valid as Grammonus robustus Smith & Radcliffe 1913. Bythitidae. Distribution: Red Sea; Indo-West Pacific: South Africa east to Philippines, north to southern Korea and southern Japan. Habitat: marine.

roulei, Barathronus Nielsen [J. G.] 2019:253, Fig. 25 [Zootaxa 4679 (no. 2); ref. 36994] Off the Azores, 39°11'N, 30°44'40"W, depth 1846 meters. Holotype (unique): MOM P01-0003655. •Valid as Barathronus roulei Nielsen 2019 -- (Carneiro et al. 2019:160 [ref. 37250], Bañón et al. 2024:175 [ref. 41332]). Current status: Valid as Barathronus roulei Nielsen 2019. Bythitidae. Distribution: Northeastern Atlantic: Azores and Porcupine Bank (off Ireland). Habitat: marine.

rubra, Microbrotula Gosline [W. A.] 1953:219, Figs. 1c, 4a-b, 5b [Copeia 1953 (no. 4); ref. 1859] Kaneohe Bay, northern coast of Oahu Island, Hawaiian Islands, depth 3 feet. Holotype: USNM 162710. Paratypes: UH 35 (orig. 2, not found), UH 98 (2, 1 skeleton, not found), USNM 162711 (1), ZMUC P77471 [? ex UH 35] (1). Type catalog: Nielsen 1974:78 [ref. 9588]. •Valid as Microbrotula rubra Gosline 1953 -- (Nielsen & Cohen in Nielsen et al. 1999:107 [ref. 24448], Machida 2000:124 [ref. 25106], Anderson 2005:35 [ref. 28240], Mundy 2005:247 [ref. 28379], Anderson 2007:8 [ref. 29164], Randall 2007:119 [ref. 30952], Schwarzhans & Nielsen 2011:157 [ref. 31714], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Microbrotula rubra Gosline 1953. Bythitidae. Distribution: Hawaiian Islands. Habitat: marine.

rubrirostris, Cataetyx Gilbert [C. H.] 1890:111 [Proceedings of the United States National Museum v. 13 (no. 797); ref. 1623] Off California coast, depth 205-359 fathoms. Lectotype: USNM 44379. Paralectotypes: CAS-SU 60 (2), USNM 126973 (1). Lectotype apparently not established by Jordan & Evermann; see Böhlke 1953:102 [ref. 12291]. •Valid as Cataetyx rubrirostris Gilbert 1890 -- (Pequeño 1989:48 [ref. 14125] as Cataetix rubirostris, Gibbs 1991:149 [ref. 23103], Chirichigno F. & Vélez D. 1998:231 [ref. 24555], Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448], Balushkin & Prokofiev 2005:557 [ref. 28326], Love et al. 2005:52 [ref. 37547], Prokofiev 2005:121 [ref. 34466], Castellanos-Galindo et al. 2006:199 [ref. 28944], Møller et al. 2016:Appendix A [ref. 34432], Burton & Lea 2019:52 [ref. 37205], Love et al. 2021:84 [ref. 39279], Page et al. 2023:111 [ref. 40505]). Current status: Valid as Cataetyx rubrirostris Gilbert 1890. Bythitidae. Distribution: Eastern Pacific: northern Oregon (U.S.A.) south to Pacific coast of northern Baja California (Mexico); Peru south to central Chile. Habitat: marine.

sanguineus, Pseudobythites Meek [S. E.] & Hildebrand [S. F.] 1928:968, Pl. 99 (fig. 2) [Field Museum of Natural History, Publications, Zoölogical Series v. 15 (publ. 249); ref. 2964] Toro Point, Canal Zone, Panama. Holotype (unique): USNM 81793. •Valid as Petrotyx sanguineus (Meek & Hildebrand 1928) -- (Cohen & Nielsen 1978:38 [ref. 881], Cervigón 1982:13 [ref. 23220], Robins & Ray 1986:100 [ref. 23100], Cervigón 1991:172 [ref. 24472], Nielsen & Cohen in Nielsen et al. 1999:85 [ref. 24448], Nielsen & Robins 2003:969 [ref. 27008], Smith et al. 2003:12 [ref. 27621], Nelson et al. 2004:92 [ref. 27807], Garrido-Linares & Acero P. 2006:295, 298 [ref. 28946], Page et al. 2013:95 [ref. 32708], Smith-Vaniz & Jelks 2014:29 [ref. 33341], Møller et al. 2016:Appendix A [ref. 34432], Bauer et al. 2018:676 [ref. 36412], Carvalho-Filho 2023:80 [ref. 40480], Page et al. 2023:110 [ref. 40505]). Current status: Valid as Petrotyx sanguineus (Meek & Hildebrand 1928). Bythitidae. Distribution: Western Atlantic: Florida (U.S.A.) and Bahamas south to Brazil, including Caribbean Sea. Habitat: marine.

schwarzhansi, Tuamotuichthys Nielsen [J. G.] & Møller [P. R.] 2008:37, Fig. 22 [Steenstrupia v. 30 (no. 1); ref. 29803] Solomon Sea, 7°25.6'S, 155°30.1'E, depth 440-466 meters. Holotype: ZMUC P771584. Paratypes: ZMUC P771584 (1). •Valid as Tuamotuichthys schwarzhansi Nielsen & Møller 2008 -- (Møller & Nielsen 2015:735 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Tuamotuichthys schwarzhansi Nielsen & Møller 2008. Bythitidae. Distribution: Solomon Sea and New Zealand. Habitat: marine.

simile, Lucifuga Nalbant [T. T.] 1981:189, Fig. 3 [ ref. 8567] Grieta Punta de Guana, about 100 meters from shore line of Atlantic, about 23°04'N, 81°35'W, Matanzas Province, Cuba. Holotype: ISER. Paratypes: ISBB 3199 (1). Type catalog: Faloh-Gandarilla et al. 2016:9 [ref. 35177]. •Valid as Lucifuga simile Nalbant 1981 -- (Nielsen & Cohen in Nielsen et al. 1999:123 [ref. 24448], Romero & Paulson 2001:32 [ref. 26040], Nielsen 2003:974 [ref. 27009], Nielsen in Reis et al. 2003:507 [ref. 27061], Møller et al. 2006:31 [ref. 28699], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Proudlove 2006:174 [ref. 28992], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Faloh-Gandarilla et al. 2016:9 [ref. 35177], Hernández et al. 2020:33 [ref. 37642]). Current status: Valid as Lucifuga simile Nalbant 1981. Bythitidae. Distribution: Caves in Cuba (Grieta Punta de Guana and La Pluma), western Atlantic. Habitat: freshwater, brackish.

simum, Hephthocara Alcock [A. W.] 1892:349, Pl. 18 (fig. 1) [Annals and Magazine of Natural History (Series 6) v. 10 (no. 59); ref. 88] Gulf of Mannar, southern India, 6°58'N, 77°26'50"E, Investigator station 128, depth 902 fathoms. Holotype (unique): ZSI F13172. Type catalog: Menon & Yazdani 1968:149 [ref. 20743] as Hepthocara simum, Menon & Rama-Rao 1975:40 [ref. 22148]. Figured in Alcock 1898: Pl. 22 (fig. 3) [ref. 20534]. •Valid as Hephthocara simum Alcock 1892 -- (Nielsen & Cohen in Nielsen et al. 1999:106 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Hephthocara simum Alcock 1892. Bythitidae. Distribution: Northern Indian Ocean. Habitat: marine.

simus, Cataetyx Garman [S.] 1899:168, Pls. E (2), 39 (3-6), 80 (2) [Memoirs of the Museum of Comparative Zoology v. 24; ref. 1540] Off (Pacific) Panama Bay (Panama) and Galapagos Islands (Ecuador), Albatross stations 3361, 3392, 3400, depth 1270-1471 fathoms. Syntypes: MCZ 28631-33 (1, 1, 1). •Possibly a synonym of Cataetyx laticeps Koefoed 1927 -- (Nielsen & Cohen in Nielsen et al. 1999:101 [ref. 24448]). •Valid as Cataetyx simus Garman 1899 -- (Pequeño 1989:48 [ref. 14125], Chirichigno F. & Vélez D. 1998:231 [ref. 24555], Balushkin & Prokofiev 2005:557 [ref. 28326], Castellanos-Galindo et al. 2006:199 [ref. 28944], McCosker & Rosenblatt 2010:189 [ref. 30957], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Love et al. 2021:84 [ref. 39279], Grove et al. 2022:17 [ref. 41326] as sp. vs. simus, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Cataetyx simus Garman 1899. Bythitidae. Distribution: Eastern Pacific: southern California (U.S.A.) south to Chile, including Galapagos Islands (Ecuador). Habitat: marine.

slartibartfasti, Fiordichthys Paulin [C. D.] 1995:250, Fig. 1 [Journal of Natural History v. 29 (no. 1); ref. 21619] Long Sound, Preservation Inlet, Fiordland, New Zealand, 46°00'S, 166°49.2'E, depth 10 meters. Holotype: NMNZ P.30323. Paratypes: NMNZ P.30313 (1). •Valid as Fiorichthys slartibartfasti Paulin 1995 -- (Nielsen & Cohen in Nielsen et al. 1999:132 [ref. 24448], Nielsen et al. 2004:40 [ref. 27738]). •Valid as Bidenichthys slartibartfasti (Paulin 1995) -- (Møller & Nielsen 2015:725 [ref. 34260], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Møller et al. 2021:3 [ref. 38861]). Current status: Valid as Bidenichthys slartibartfasti (Paulin 1995). Bythitidae. Distribution: New Zealand: Fjordland and South Island. Habitat: marine.

solomonensis, Barathronus Nielsen [J. G.] & Møller [P. R.] 2008:39, Fig. 25 [Steenstrupia v. 30 (no. 1); ref. 29803] Solomon Sea, 9°53.9'S, 157°26.4'E, depth 4100-4096 meters. Holotype (unique): ZMUC P771587. •Valid as Barathronus solomonensis Nielsen & Møller 2008 -- (Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Paraphyonus solomonensis (Nielsen & Møller 2008) -- (Nielsen 2015:342 [ref. 34016], Nielsen et al. 2019:560 [ref. 36568], Nielsen 2019:232 [ref. 36994]). Current status: Valid as Paraphyonus solomonensis (Nielsen & Møller 2008). Bythitidae. Distribution: Solomon Sea, Pacific Ocean. Habitat: marine.

spelaeotes, Lucifuga (Stygicola) Cohen [D. M.] & Robins [C. R.] 1970:135, Figs. 1-2 [Proceedings of the Biological Society of Washington v. 83 (no. 11); ref. 7727] Mermaid's Pool, about 25°05'N, 77°20'W, New Providence Island, Bahamas, depth 5 meters. Holotype: USNM 204603. Paratypes: USNM 204604 (1). •Valid as Lucifuga spelaeotes Cohen & Robins 1970 -- (Cohen & Nielsen 1978:54 [ref. 881], Nalbant 1981:186 [ref. 8567], Lee et al. 1983:9 [ref. 22527], Nielsen & Cohen in Nielsen et al. 1999:123 [ref. 24448], Romero & Paulson 2001:32 [ref. 26040], Nielsen 2003:974 [ref. 27009], Møller et al. 2006:34 [ref. 28699], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Proudlove 2006:172 [ref. 28992], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Hernández et al. 2020:27 [ref. 37642]). Current status: Valid as Lucifuga spelaeotes Cohen & Robins 1970. Bythitidae. Distribution: Great Bahama Bank, western Atlantic. Habitat: brackish, marine.

squamiceps, Diplacanthopoma Lloyd [R. E.] 1907:10 [Records of the Indian Museum (Calcutta) v. 1 (pt 1); ref. 15153] Southeastern coast of Arabia, 13°09'27"N, 46°45'15"E, Investigator station 361, depth 540 fathoms. Syntypes: ZSI F1321/1-1322/1 (2). Type catalog: Menon & Yazdani 1968:148 [ref. 20743], Menon & Rama-Rao 1975:40 [ref. 22148]. Figured in Alcock 1908: Pl. 42 (figs. 2-2a) [ref. 20538]. •Valid as Pseudonus squamiceps (Lloyd 1907) -- (Nielsen & Cohen in Nielsen et al. 1999:108 [ref. 24448], Nielsen 2011:59 [ref. 31293], Nielsen 2011:60 [ref. 31293], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Pseudonus squamiceps (Lloyd 1907). Bythitidae. Distribution: Western Indian Ocean (Gulf of Aden) and western Pacific (Taiwan southward) and southeastern Indian Ocean off Australia. Habitat: marine.

staigeri, Saccogaster Cohen [D. M.] & Nielsen [J. G.] 1972:451, Fig. 1b [Proceedings of the Biological Society of Washington v. 85 (no. 39); ref. 7606] Northwestern Atlantic, 27°11'N, 79°49'W, depth 201-216 meters. Holotype: USNM 207357. Paratypes: USNM 164144 (1). •Valid as Saccogaster staigeri Cohen & Nielsen 1972 -- (Cohen & Nielsen 1978:50 [ref. 881], Cohen 1987:2 [ref. 6040], McEachran & Fechhelm 1998:748 [ref. 23897], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Menezes & Figueiredo in Menezes et al. 2003:60 [ref. 27192], Nielsen 2003:974 [ref. 27009], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Nielsen et al. 2012:20 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Page et al. 2023:111 [ref. 40505]). Current status: Valid as Saccogaster staigeri Cohen & Nielsen 1972. Bythitidae. Distribution: Western Atlantic. Habitat: marine.

subterraneus, Lucifuga Poey [F.] 1858:96, Pls. 10 (figs. 1-4, 8), 11 [Memorias sobre la historia natural de la Isla de Cuba v. 2; ref. 3499] Caves of San Antonio, Habana Province, southern Cuba. Holotype (unique): ZMB 6314. Type catalog: Faloh-Gandarilla et al. 2016:10 [ref. 35177]. Text published in Oct. 1858; plates published in July 1860. •Valid as Lucifuga subterraneus Poey 1858 -- (Cohen & Nielsen 1978:54 [ref. 881], Nalbant 1981:185 [ref. 8567], Lee et al. 1983:10 [ref. 22527], Romero & Paulson 2001:31 [ref. 26040], Proudlove 2006:169 [ref. 28992], Faloh-Gandarilla et al. 2016:10 [ref. 35177]). •Valid as Lucifuga subterranea Poey 1858 -- (Nielsen & Cohen in Nielsen et al. 1999:123 [ref. 24448], Nielsen 2003:974 [ref. 27009], Nielsen in Reis et al. 2003:507 [ref. 27061], Møller et al. 2006:31 [ref. 28699], Garrido-Linares & Acero P. 2006:289 [ref. 28946], García-Machado et al. 2011:1 [ref. 39089], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Hernández et al. 2020:27 [ref. 37642]). Current status: Valid as Lucifuga subterranea Poey 1858. Bythitidae. Distribution: Western Atlantic: caves in Cuba. Habitat: freshwater, brackish.

tanseimaru, Parabrotula Miya [M.] & Nielsen [J. G.] 1991:2 [Japanese Journal of Ichthyology v. 38 (no. 1); ref. 19093] Sagami Bay, Japan, 35°01.1'N, 139°21.1'E, depth 0-920 meters. Holotype: CBM-ZF 128. Paratypes: CBM-ZF 108-117 (11), 119-120 (2), 123 (1), 129-130 (2), 218 (1), 1024 (1), 1026 (1), 1027 (1); NSMT-P 33548-49 (2); ZMUC P761179-80 (2). •Valid as Parabrotula tanseimaru Miya & Nielsen 1991 -- (Nakabo 2000:1045 [ref. 25182], Nakabo 2002:1045 [ref. 26193], Campbell et al. 2017:339 [ref. 35124]). Current status: Valid as Parabrotula tanseimaru Miya & Nielsen 1991. Bythitidae. Distribution: Western North Pacific. Habitat: marine.

tasmaniensis, Anacanthobythites Anderson [M. E.] 2008:153, Fig. 3 [Species Diversity v. 13 (no. 2-3); ref. 29964] Bathurst Channel off Port Davey, Tasmania, Australia, 43°20'S 146°00'E, depth 9 meters. Holotype: CSIRO H6280-001. Paratypes: (1) CSIRO H6280-002 (1). •Valid as Anacanthobythites tasmaniensis Anderson 2008 -- (Schwarzhans & Nielsen 2011:148 [ref. 31714], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Anacanthobythites tasmaniensis Anderson 2008. Bythitidae. Distribution: Tasmania, Australia. Habitat: marine.

teresinarum, Lucifuga Díaz Pérez [P. A.] 1988:38, Figs. 1-5 [Revista Biologia (Havana) v. 2 (no. 2); ref. 17657] Cave at Artemisa, about 22°50'N, 82°40'W, Havana Province, Cuba. Holotype: DZUH 2015. Paratypes: DZUH 2016 (1). •Valid as Lucifuga teresinarum Díaz Pérez 1988 -- (Nielsen & Cohen in Nielsen et al. 1999:123 [ref. 24448], Romero & Paulson 2001:32 [ref. 26040], Nielsen 2003:974 [ref. 27009], Nielsen in Reis et al. 2003:507 [ref. 27061], Møller et al. 2006:31 [ref. 28699], Garrido-Linares & Acero P. 2006:289 [ref. 28946], Proudlove 2006:175 [ref. 28992], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Synonym of Lucifuga subterranea Poey 1858 -- (García-Machado et al. 2011:1 [ref. 39089], Faloh-Gandarilla et al. 2016:10 [ref. 35177], Hernández et al. 2020:28 [ref. 37642]). Current status: Synonym of Lucifuga subterranea Poey 1858. Bythitidae. Habitat: freshwater, brackish.

thielei, Grammonus Nielsen [J. G.] & Cohen [D. M.] 2004:83, Figs. 1-3 [The Beagle, Records of the Museums and Art Galleries of the Northern Territory v. 20; ref. 28073] 35 meters inside a limestone cave in Tomia Island, off southeastern Sulawesi, Indonesia, depth about 25 meters. Holotype (unique): ZMUC P771359. •Valid as Grammonus thielei Nielsen & Cohen 2004 -- (Nielsen 2007:375 [ref. 29358], Randall & Hughes 2008:143 [ref. 29910], Nielsen & Prokofiev 2010:192 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Grammonus thielei Nielsen & Cohen 2004. Bythitidae. Distribution: Sulawesi, Indonesia. Habitat: marine.

tuberculatus, Barbuliceps Chan [W. L.] 1966:5, Figs. 1-2 [Japanese Journal of Ichthyology v. 14 (no. 1/3); ref. 807] South China Sea, about 270 miles north of Kuching, Sarawak State, Borneo, Malaysia, 6°01.8'N, 109°57.4'E, depth 450-456 fathoms. Holotype (unique): BMNH 1965.11.6.1. Species epithet misspelled tubercularis on p. 4, elsewhere tuberculatus. •Valid as Saccogaster tuberculata (Chan 1966) -- (Cohen & Nielsen 1972:456 [ref. 7606], Cohen & Nielsen 1978:50 [ref. 881], Okamura in Okamura et al. 1982:185, 356 [ref. 8256], Cohen 1987:2 [ref. 6040], Nielsen & Cohen in Nielsen et al. 1999:110 [ref. 24448], Nielsen 1999:1984 [ref. 24753], Nielsen in Randall & Lim 2000:596 [ref. 25122] as tuberculatus, Hutchins 2001:23 [ref. 25847], Mundy 2005:248 [ref. 28379], Hoese & Gates 2006:574 [ref. 28997], Nielsen et al. 2012:22 [ref. 32315], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae, Fricke et al. 2018:85 [ref. 35805]). Current status: Valid as Saccogaster tuberculata (Chan 1966). Bythitidae. Distribution: Madagascar east to Hawaiian Islands, north to South China Sea, south to northern Australia. Habitat: marine.

tumidirostris, Eutyx Boeseman [M.] 1960:13, Pl. 2 [Zoologische Mededeelingen (Leiden) v. 37 (no. 2); ref. 11893] Northern part of St. Michiel Bay, Curaçao. Holotype (unique): RMNH 23246 or 12560. In the title of the article the species was spelled tumidifrons, but it appeared as tumidirostris in the text and caption to Pl. 2; first reviser not researched, tumidirostris was selected by Eschmeyer 1998:1711 [ref. 23416]. •Synonym of Stygnobrotula latebricola Böhlke 1957 -- (Cohen & Nielsen 1978:51 [ref. 881], Nielsen & Cohen in Nielsen et al. 1999:111 [ref. 24448]). Current status: Synonym of Stygnobrotula latebricola Böhlke 1957. Bythitidae. Habitat: marine.

unicolor, Barathronus Nielsen [J. G.] 1984:579, Fig. 1 [Copeia 1984 (no. 3); ref. 5286] North Atlantic, 38°28'N, 70°52'W, depth 2931-2967 meters. Holotype: MCZ 56936. Paratypes: MCZ 56935 (2), 56937-39 (4, 2, 2); VIMS 05236-37 (1, 2); ZMUC P77722-25 (1, 1, 1, 1). •Valid as Barathronus unicolor Nielsen 1984 -- (Nielsen & Cohen in Nielsen et al. 1999:139 [ref. 24448], Nielsen 2003:976 [ref. 27009], Moore et al. 2003:208 [ref. 27076], Garrido-Linares & Acero P. 2006:288 [ref. 28946], Nielsen et al. 2015:59 [ref. 33736], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Synonym of Barathronus pacificus Nielsen & Eagle 1974 -- (Nielsen 2019:248 [ref. 36994]). Current status: Synonym of Barathronus pacificus Nielsen & Eagle 1974. Bythitidae. Habitat: marine.

waikiki, Oligopus Cohen [D. M.] 1964:11 [Proceedings of the United States National Museum v. 116 (no. 3494); ref. 6891] Off Waikiki reef, Oahu Island, Hawaiian Islands. Holotype (unique): USNM 179898. Replacement name for Microbrotula nigra Gosline 1953, secondarily preoccupied by Oligopus niger Risso when both are in Oligopus. •Valid as Oligopus waikiki Cohen 1964 -- (Cohen & Nielsen 1978:49 [ref. 881]). •Valid as Grammonus waikiki (Cohen 1964) -- (Nielsen & Cohen in Nielsen et al. 1999:104 [ref. 24448], Nielsen & Cohen 2004:85 [ref. 28073], Mundy 2005:247 [ref. 28379], Nielsen 2007:375 [ref. 29358], Randall 2007:119 [ref. 30952], Randall & Hughes 2008:137 [ref. 29910], Nielsen & Prokofiev 2010:192 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Replacement Name. Current status: Valid as Grammonus waikiki (Cohen 1964). Bythitidae. Distribution: Hawaiian Islands. Habitat: marine.

yunokawai, Grammonus Nielsen [J. G.] 2007:374, Figs. 1-4, 5A [Ichthyological Research v. 54; ref. 29358] Cave in 20 meters depth, at diving point Ohaba No. 1, northeast coast of Ie-shima Island, Okinawa, Ryukyu Islands. Holotype (unique): KPM-NI 5258. •Valid as Grammonus yunokawai Nielsen 2007 -- (Randall & Hughes 2008:143 [ref. 29910], Nielsen & Prokofiev 2010:192 [ref. 30790], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Valid as Grammonus yunokawai Nielsen 2007. Bythitidae. Distribution: Western North Pacific: Ryukyu Islands, Japan. Habitat: marine.