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

Species in the genus Laimosemion: [ 37 ] records

agilae, Rivulus Hoedeman [J. J.] in Gols 1954:202, Fig. [Het Aquarium v. 24 (no. 9); ref. 33273] Agila, rivulet between Agila at Suriname River and Berlijn at Para River, Suriname. Holotype: ZMA 100448a. Paratypes: BMNH 1957.1.28.13-18 [ex ZMA] (6), 1958.9.2.110-111 [ex ZMA] (2); RML 1-4-53 (179); ZMA 100448b (1), 100449 (8). Type catalog: Nijssen et al. 1982:70 [ref. 19236]. •Valid as Rivulus agilae Hoedeman 1954 -- (Huber 1991:70 [ref. 19721], Huber 1992:87 [ref. 20639], Huber 1999:50 [ref. 23834], Keith et al. 2000:36 [ref. 24547], Lazara 2001:269 [ref. 25711], Costa in Reis et al. 2003:534 [ref. 27061], Suijker & Collier 2006:10 [ref. 28729], Keith et al. 2006:137 [ref. 28851], Costa 2006:152 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion agilae (Hoedeman 1954) -- (Costa 2011:239 [ref. 31655], Vermeulen et al. 2012:188 [ref. 32253], Valdesalici & García Gil 2015:169 [ref. 34010]). Current status: Valid as Laimosemion agilae (Hoedeman 1954). Rivulidae: Rivulinae. Distribution: Atlantic coastal river basins: French Guiana, Guyana and Suriname. Habitat: freshwater.

altivelis, Rivulus Huber [J. H.] 1992:93, Fig. 29a [Review of Rivulus: Ecobiogeography -- Relationships; ref. 20639] Raudal Alto, about 90 kilometers NE of mouth of Papunava River, Inriida River basin, Guainia Dept. Colombia. Holotype: NRM 16548. Paratypes: NRM 14687 (19). •Valid as Rivulus altivelis Huber 1992 -- (Lazara 2001:270 [ref. 25711], Costa in Reis et al. 2003:534 [ref. 27061], Hrbek et al. 2004:575 [ref. 27910], Costa 2006:157 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen & Mejia-Vargas 2020:19 [ref. 37935], Vermeulen & Mejia-Vargas 2020:34 [ref. 37938]). •Valid as Laimosemion altivelis (Huber 1992) -- (Costa 2011:239 [ref. 31655], Costa & Lazzarotto 2014:372 [ref. 33247], DoNascimiento et al. 2017:101 [ref. 35633]). Current status: Valid as Laimosemion altivelis (Huber 1992). Rivulidae: Rivulinae. Distribution: South America: Orinoco River basin (Colombia). Habitat: freshwater.

amanapira, Rivulus Costa [W. J. E. M.] 2004:7, Figs. 4-5 [Zootaxa No. 465; ref. 27570] Pools near igarapé Palestina, Airport road, upper rio Negro drainage, rio Amazonas basin, São Gabriel da Cachoeira, Estado do Amazonas, Brazil, 0°09'19.2"S, 66°59'58.9"W, elevation 100 meters. Holotype: UFRJ 5929. Paratypes: MCP 34859 (2); UFRJ 5930 (11), 5931 (3 c&s). •Valid as Rivulus amanapira Costa 2004 -- (Costa 2004:11 [ref. 27656], Hrbek et al. 2004:575 [ref. 27910], Costa 2004:2 [ref. 27923], Costa 2006:157, 160 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen et al. 2013:191 [ref. 32954], Vermeulen & Mejia-Vargas 2020:19 [ref. 37935], Vermeulen & Mejia-Vargas 2020:34 [ref. 37938]). •Valid as Laimosemion amanapira (Costa 2004) -- (Costa 2011:239 [ref. 31655], Costa & Bragança 2013:93 [ref. 32797], Costa & Lazzarotto 2014:372 [ref. 33247]). Current status: Valid as Laimosemion amanapira (Costa 2004). Rivulidae: Rivulinae. Distribution: Upper Negro River drainage, Amazon basin, northern Brazil. Habitat: freshwater.

anitae, Laimosemion Nielsen [D. T. B.], Hoetmer [J. W.] & Vandenkerkhove [E.] 2023:299 [Zootaxa 5323 (no. 2); ref. 40342] Stream tributary of Igarapé Japiim, a tributary of rio Moa, Rio Juruá drainage, Amazon basin, Mânchio Lima, Acre, Brazil, 7°34'15.5"S, 72°57'31.5"W. Holotype: ZUEC 17365. Paratypes: ZUEC 17366 (6), 17367 (4). Appeared first in an unavailable publication, ref. 39106, p. 38, Figs. 1-2. •Valid as Laimosemion anitae Nielsen, Hoetmer & Vandenkerkhove 2023. Current status: Valid as Laimosemion anitae Nielsen, Hoetmer & Vandenkerkhove 2023. Rivulidae: Rivulinae. Distribution: South America: Rio Juruá drainage, Amazon basin, Acre, Brazil. Habitat: freshwater.

breviceps, Rivulus Eigenmann [C. H.] 1909:49 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1222] Shrimp Creek, near Kaituer, Guyana. Holotype: FMNH 52710 [ex CM 1075]. Paratypes: (4, CM and IU) BMNH 1911.10.31.531 (1), CAS 44211 [ex IU 11758] (3). Type catalog: Henn 1928:86 [ref. 12305], Ibarra & Stewart 1987:76 [ref. 12367], Huber 1992 [ref. 20639]. •Valid as Rivulus breviceps Eigenmann 1909 -- (Huber 1992:133 [ref. 20639], Vermeulen & Isbrücker 2000:190 [ref. 25219], Lazara 2001:271 [ref. 25711], Costa in Reis et al. 2003:535 [ref. 27061], Hrbek et al. 2004:573 [ref. 27910], Suijker & Collier 2006:10 [ref. 28729], Costa 2006:152 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion breviceps (Eigenmann 1909) -- (Costa 2011:239 [ref. 31655], Vermeulen et al. 2012:187 [ref. 32253]). Current status: Valid as Laimosemion breviceps (Eigenmann 1909). Rivulidae: Rivulinae. Distribution: Amazon River basin, Guyana. Habitat: freshwater.

carolinae, Rivulus Vermeulen [F. B. M.] & Mejia-Vargas [D. A.] 2020:23, Figs. 1-5 [Killi-Data Series 2020; ref. 37938] Small creek and surroundings about 10 minutes' walk south-southwest in the forest starting where airstrip ends, La Guadalupe, Alto Rio Negro, Departamento Guainía, Colombia, 1°13'58.46"N, 66°52'41.78"W, elevation 106 meters. Holotype: IAVHP 13656. Paratypes: IAVHP 13657 (6). •Valid as Laimosemion carolinae (Vermeulen & Mejia-Vargas 2020). Current status: Valid as Laimosemion carolinae (Vermeulen & Mejia-Vargas 2020). Rivulidae: Rivulinae. Distribution: South America: Alto Rio Negro, Colombia, near border with Venezuela and Brazil. Habitat: freshwater.

cladophorus, Rivulus Huber [J. H.] 1991:71, Fig. 6 [Revue française d'Aquariologie Herpétologie v. 18 (no. 3); ref. 19721] Inner Guyana, 4°85'N, 53°30'W. Holotype: MNHN 1991-0364. Paratypes: ANSP 168824 (4); MNHN 1991-0365 and 0366 (4, 5); MNRJ 643 (4); USNM 320157 (4). •Valid as Rivulus cladophorus Huber 1991 -- (Huber 1992:154 [ref. 20639], Huber 1999:50 [ref. 23834], Keith et al. 2000:38 [ref. 24547], Lazara 2001:272 [ref. 25711], Costa in Reis et al. 2003:535 [ref. 27061], Keith et al. 2006:137 [ref. 28851], Costa 2006:152 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion cladophorus (Huber 1991) -- (Costa 2011:239 [ref. 31655], Valdesalici & García Gil 2015:169 [ref. 34010]). Current status: Valid as Laimosemion cladophorus (Huber 1991). Rivulidae: Rivulinae. Distribution: Atlantic coastal river basins, French Guiana. Habitat: freshwater.

dibaphus, Rivulus Myers [G. S.] 1927:121 [Annals and Magazine of Natural History (Series 9) v. 19 (no. 109); ref. 3098] Igarapé do Ajamuri, Lower Amazon, Brazil. Lectotype: CAS 44214. Paralectotypes: CAS 44214-15 (10 [with lectotype], 6). Lectotype selected in Huber 1992:184 [ref. 20639]. The specific name dibaphus can be a noun or an adjective. Not specified by the author, so is to be treated as a noun (ICZN Art. 31.2.2). •Synonym of Rivulus geayi Vaillant 1899 -- (Huber 1991:70 [ref. 19721], Huber 1992:184 [ref. 20639], Huber 1999:50 [ref. 23834], Lazara 2001:275 [ref. 25711], Hrbek et al. 2004:569 [ref. 27910]). •Valid as Rivulus dibaphus Myers 1927 -- (Costa in Reis et al. 2003:535 [ref. 27061], Costa 2006:152, 155 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion dibaphus (Myers 1927) -- (Costa 2011:239 [ref. 31655], Valdesalici & García Gil 2015:169 [ref. 34010]). Current status: Valid as Laimosemion dibaphus (Myers 1927). Rivulidae: Rivulinae. Distribution: South America: lower Amazon River basin, Brazil. Habitat: freshwater.

duckensis, Rivulus Hrbek [T.], de Deus [C. P.] & Farias [I. P.] 2004:571, Fig. 2 [Copeia 2004 (no. 3); ref. 27910] Rivulet emptying into Igarapé Barro Branco, Reserva Adolpho Ducke, Manaus, Amazonas, 2°53'S, 59°58'W, Brazil. Holotype: INPA 21444. Paratypes: INPA 21442 (6), 21443 (11); MZUSP 84223 (2); NMRJ 26192 (2). Plus non-type material. See Costa 2006:167 [ref. 28875] for dates of publication of duckensis (20 Aug.) and kirovskyi (30 Apr.). •Synonym of Rivulus kirovskyi Costa 2004 -- (Costa 2006:157 [ref. 28875] in subgenus Owiyeye). •Synonym of Laimosemion kirovskyi (Costa 2004) based on placement of kirovskyi -- (Costa 2011:239 [ref. 31655]). Current status: Synonym of Laimosemion kirovskyi (Costa 2004). Rivulidae: Rivulinae. Distribution: Tarumã basin, Amazonas, Brazil [if valid]. Habitat: freshwater.

flammaecauda, Rivulus Vermeulen [F. B. M.] & Mejia-Vargas [D. A.] 2020:30, Figs. 6-10 [Killi-Data Series 2020; ref. 37938] Small creek and surroundings about 10 minutes' walk south-southwest in the forest starting where airstrip ends, La Guadalupe, Alto Rio Negro, Departamento Guainía, Colombia, 1°13'58.46"N, 66°52'41.78"W, elevation 106 meters. Holotype: IAVHP 13658. Paratypes: IAVHP 13659 (9). •Valid as Laimosemion flammaecauda (Vermeulen & Mejia-Vargas 2020). Current status: Valid as Laimosemion flammaecauda (Vermeulen & Mejia-Vargas 2020). Rivulidae: Rivulinae. Distribution: South America: Alto Rio Negro, Colombia, near border with Venezuela and Brazil. Habitat: freshwater.

foliiscola, Rivulus Vermeulen [F. B. M.] & Mejia-Vargas [D. A.] 2020:12, Figs. 1-5 [Killi-Data Series 2020; ref. 37935] Sinkhole in the secondary forest near the village La Guadalupe, Departamento Guainía, Colombia, 1°14'40.56"N, 66°51'57.47"W, elevation 82 meters. Holotype: IAVHP 13652. Paratypes: IAVHP 13653 (7). •Valid as Laimosemion foliiscola (Vermeulen & Mejia-Vargas 2020). Current status: Valid as Laimosemion foliiscola (Vermeulen & Mejia-Vargas 2020). Rivulidae: Rivulinae. Distribution: South America: La Guadalupe, Departamento Guainía, Colombia, near border with Venezuela and Brazil. Habitat: freshwater.

frenatus, Rivulus Eigenmann [C. H.] 1912:453, 455 [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Essequibo River at Gluck Island, Guyana. Holotype (unique): FMNH 53538 [ex CM 1085]. Type catalog: Henn 1928:86 [ref. 12305], Ibarra & Stewart 1987:76 [ref. 12367]. Available from key on p. 453. Name used previously in Eigenmann 1909:51 [ref. 1222] and Eigenmann 1910 [ref. 1224] with reference to type and locality, but without diagnostic characters and therefore not available from either of those publications (Art. 12.1 of the Code). Combined with a neuter genus, the adjective should be frenatum. •Valid as Rivulus frenatus Eigenmann 1912 -- (Huber 1992:202 [ref. 20639], Lazara 2001:274 [ref. 25711], Costa in Reis et al. 2003:536 [ref. 27061], Suijker & Collier 2006:10 [ref. 28729], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion frenatum (Eigenmann 1912) -- (Costa 2011:239 [ref. 31655] as frenatus, Vermeulen et al. 2012:188 [ref. 32253] as frenatus). Current status: Valid as Laimosemion frenatum (Eigenmann 1912). Rivulidae: Rivulinae. Distribution: Essequibo River basin, Guyana and Suriname. Habitat: freshwater.

geayi, Rivulus Vaillant [L. L.] 1899:156 [3] [Bulletin du Muséum d'Histoire Naturelle, Paris (sér. 1) v. 5 (no. 4); ref. 14710] Carsevenne River, French Guiana, elevation 450 meters. Lectotype: MNHN 1899-0101. Paralectotypes: BMNH 1899.7.26.6-10 [ex MNHN] (5); MNHN 1899-0100 (5), 1899-0101 (4), 1899-0103 (5 or 6). Type catalog: Bertin & Estève 1950:28 [ref. 19576]. Type information: Huber 1992 [ref. 20639]. On p. 3 of separate. Lectotype selected in Huber 1992:211 [ref. 20639]. •Valid as Rivulus geayi Vaillant 1899 -- (Huber 1991:70 [ref. 19721], Huber 1992:211 [ref. 20639], Huber 1999:50 [ref. 23834], Keith et al. 2000:40 [ref. 24547], Lazara 2001:275 [ref. 25711], Costa in Reis et al. 2003:536 [ref. 27061], Hrbek et al. 2004:569 [ref. 27910], Vermeulen & Hrbek 2005:7 [ref. 28142], Suijker & Collier 2006:10 [ref. 28729], Keith et al. 2006:137 [ref. 28851], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion geayi (Vaillant 1899) -- (Costa 2011:239 [ref. 31655], Vermeulen et al. 2012:188 [ref. 32253], Valdesalici & García Gil 2015:169 [ref. 34010], Brosse et al. 2019:134 [ref. 38320]). Current status: Valid as Laimosemion geayi (Vaillant 1899). Rivulidae: Rivulinae. Distribution: South America: Atlantic coastal river drainages and Amazon River basin (Brazil and French Guiana). Habitat: freshwater.

gili, Laimosemion Valdesalici [S.] & Nielsen [D. T. B.] 2017:98, Figs. 1-2 [aqua, International Journal of Ichthyology v. 23 (no. 3); ref. 35496] Creek Garukana, tributary of Rio Preto, Rio Negro basin, Santa Isabel do Rio Negro, Amazonas, Brazil, 0°6'31"S, 64°7'18"W, elevation 38 meters. Holotype: ZUEC 14575. Paratypes: MSNG, ZUEC. •Valid as Rivulus gili (Valdesalici & Nielsen 2017) -- (Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion gili Valdesalici & Nielsen 2017. Current status: Valid as Laimosemion gili Valdesalici & Nielsen 2017. Rivulidae: Rivulinae. Distribution: Rio Preto drainage, Rio Negro basin, Amazonas, Brazil. Habitat: freshwater.

gransabanae, Rivulus Lasso [C. A.], Taphorn [D. C.] & Thomerson [J. E.] 1992:298, Figs. 2-3 [Ichthyological Exploration of Freshwaters v. 2 (no. 4); ref. 14222] Quebrada Pacheco, a small creek between Tuperere River II and San Ignacio Yuruaní, Gran Sabana, Estado Bolivar, Venezuela. Holotype: MHNLS 3883. Paratypes: CVULA 5614 (2); FMNH 101112 (10); MBUCV-V-13768 (4 not 1), V-17444 (15); MCNG 16293 (14), 18990 (24), 18993 (30), 19007 (29), 19008 (44), 21349 (12), 21351 (9), 21353 (21); MHNLS 4594 (1), 5182 (1), 5184 (4), 5812 (3). Type catalog: Lasso et al. 1997:48-49 [ref. 23639], Provenzano et al. 1998:16 [ref. 24196]. •Valid as Rivulus gransabanae Lasso, Taphorn & Thomerson 1992 -- (Huber 1992:221 [ref. 20639], Huber 1999:50 [ref. 23834], Verneulen & Isbrücker 2000:189 [ref. 25219] as cf. gransabanae, Lazara 2001:275 [ref. 25711], Costa in Reis et al. 2003:536 [ref. 27061], Radda 2004:21 [ref. 27638], Hrbek et al. 2004:573 [ref. 27910], Suijker & Collier 2006:10 [ref. 28729], Lasso-Alcalá et al. 2006:27 [ref. 28774], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion gransabanae (Lasso, Taphorn & Thomerson 1992) -- (Costa 2011:239 [ref. 31655], Vermeulen et al. 2012:187 [ref. 32253]). Current status: Valid as Laimosemion gransabanae (Lasso, Taphorn & Thomerson 1992). Rivulidae: Rivulinae. Distribution: Orinoco River basin, Venezuela. Habitat: freshwater.

jauaperi, Laimosemion (Owiyeye) Costa [W. J. E. M.] & Bragança [P. H. N.] 2013:94, Figs. 1-2 [Ichthyological Exploration of Freshwaters v. 24 (no. 1); ref. 32797] Pool adjacent to stream about 35 km West of Jundiá, road BR-431, Jauaperi River drainage, Roraima, Brazil, 0°13'45"S, 60°59'30"W, Holotype: UFRJ 9277. Paratype: UFRJ. •Valid as Rivulus jauaperi (Costa & Bragança 2013) -- (Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion jauaperi Costa & Bragança 2013 -- (Costa & Lazzarotto 2014:372 [ref. 33247], Valdesalici 2016:279 [ref. 34270], Valdesalici & Nielsen 2017:102 [ref. 35496]). Current status: Valid as Laimosemion jauaperi Costa & Bragança 2013. Rivulidae: Rivulinae. Distribution: Jauaperi River drainage, Roraima, Brazil. Habitat: freshwater.

kirovskyi, Rivulus Costa [W. J. E. M.] 2004:10, Fig. 1 [Neotropical Ichthyology v. 2 (no. 1); ref. 27656] Temporary pools near igarapé Acará, lower rio Negro drainage, rio Amazonas basin, about 3°00'S, 60°30'W, Reserva Ducke, Manaus, Estado do Amazonas, Brazil, elevation 90 meters. Holotype: UFRJ 5935. Paratypes: INPA 1850 (2); UFRJ 5936 (1, c&s), 5937 (1, c&s), 5938-39 (1, 2). •Valid as Rivulus kirovskyi Costa 2004 -- (Costa 2004:2 [ref. 27923], Costa 2006:157 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion kirovskyi (Costa 2004) -- (Costa 2011:239 [ref. 31655], Costa & Bragança 2013:95 [ref. 32797], Costa & Lazzarotto 2014:372 [ref. 33247], Valdesalici 2016:279 [ref. 34270]). Current status: Valid as Laimosemion kirovskyi (Costa 2004). Rivulidae: Rivulinae. Distribution: Floodplains of igarapé Acará, Amazon River basin, northern Brazil. Habitat: freshwater.

leticia, Laimosemion Valdesalici [S.] 2016:280, Figs. 1-2 [Zootaxa 4085 (no. 2); ref. 34270] Swamp area near Leticia at km 13-14, Rio Tacana drainage, Rio Amazonas basin, Department of Amazonas, Colombia, 4°07'02"S, 69°57'6.4"W [correction received from the author], elevation 85 meters. Holotype: IAvH-P 12943. Paratypes: MSNG. Type catalog: DoNascimiento et al. 2016:427 [ref. 34787]. •Valid as Rivulus leticia (Valdesalici 2016) -- (Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion leticia Valdesalici 2016 -- (DoNascimiento et al. 2017:101 [ref. 35633], Nielsen et al. 2022:42 [ref. 39106]). Current status: Valid as Laimosemion leticia Valdesalici 2016. Rivulidae: Rivulinae. Distribution: Upper Amazon River basin, Colombia. Habitat: freshwater.

lyricauda, Rivulus Thomerson [J. E.], Berkenkamp [H. O.] & Taphorn [D. C.] 1991:290, Figs. 1-3 [Ichthyological Exploration of Freshwaters v. 1 (no. 4); ref. 19014] Small stream at Campamiento Canaima, tributary to Río Carrao, Río Caroni basin, Estado Bolivar, Venezuela, 6°15'N, 62°48'W. Holotype: MCNG 21715 (corrected by Huber from 21714). Paratypes: FMNH 99512 (5, 2 c&s); MBUCV-V-20275 (4, not 3), V-20280 (5, not 5); MCNG 21703 (1, c&s), 21715-16 (1, 5), 22120 (5), 23709-10 (2, 9), 27305 (20); MHNLS 282 (1), 286 (2); SMF 18435 (1), 18437 (1); ZSM 27957 (2). Type catalog: Huber 1992 [ref. 20639], Lasso et al. 1997:48 [ref. 23639], Provenzano et al. 1998:17 [ref. 24196], Neumann 2011:276 [ref. 31652]. Corrected in errata to SAM and ZSM types [Anonymous [ref. 33997]]. •Status uncertain -- (Huber 1992:298 [ref. 20639]). •Valid as Rivulus lyricauda Tomerson, Berkenkamp & Taphorn 1991 -- (Vermneulen & Isbrücker 2000:190 [ref. 25219], Lazara 2001:279 [ref. 25711], Costa in Reis et al. 2003:537 [ref. 27061], Radda 2004:21 [ref. 27638], Hrbek et al. 2004:570 [ref. 27910], Suijker & Collier 2006:10 [ref. 28729], Lasso-Alcalá et al. 2006:27 [ref. 28774], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion lyricauda (Thomerson, Berkenkamp & Taphorn 1991) -- (Costa 2011:239 [ref. 31655], Vermeulen et al. 2012:188 [ref. 32253]). Current status: Valid as Laimosemion lyricauda (Thomerson, Berkenkamp & Taphorn 1991). Rivulidae: Rivulinae. Distribution: Orinoco River basin, Venezuela. Habitat: freshwater.

mabura, Laimosemion Valdesalici [S.] & García Gil [J. R.] 2015:167, Fig. 1 [aqua, International Journal of Ichthyology v. 21 (no. 4); ref. 34010] Stream on the main track to Mahdia at the 10 miles point from Mabura Hill, Essequibo River drainage, central Guiana, 5°19.367'N, 58°48.951'W. Holotype: CSBD F1700. Paratypes: MSNG. •Valid as Laimosemion mabura Valdesalici & García Gil 2015. Current status: Valid as Laimosemion mabura Valdesalici & García Gil 2015. Rivulidae: Rivulinae. Distribution: Central Guiana. Habitat: freshwater.

mahdiaensis, Rivulus Suijker [W. H.] & Collier [G. E.] 2006:3, Figs. 1-3 [Zootaxa No. 1246; ref. 28729] Blackwater creek, tributary of Potaro River, on 5 miles from Mahdia crossing the road from Mahdia to Garroway Stream, 5°21'11'N, 59°08'48"W, Mazaruni-Potaro District, Guyana. Holotype: ZMA 123720. Paratypes: FMNH 113582-84 (1, 1, 1); ZMA 123721 (1), 123722 (1), 123853-55 (1, 1, 1). Combined with a neuter genus, the adjective should be mahdianense. •Valid as Rivulus mahdiaensis Suijker & Collier 2006 -- (Costa & Souza 2009:64 [ref. 30289], Schindler & Valdesalici 2011:109 [ref. 31382]). •Valid as Laimosemion mahdiaense (Suijker & Collier 2006) -- (Costa 2011:239 [ref. 31655] as mahdianensis, Vermeulen et al. 2012:188 [ref. 32253] as mahdianensis, Costa & Lazzarotto 2014:372 [ref. 33247] as mahdianensis, Valdesalici 2016:279 [ref. 34270] as mahdianensis). Current status: Valid as Laimosemion mahdiaense (Suijker & Collier 2006). Rivulidae: Rivulinae. Distribution: Mazaruni-Potaro District, Guyana. Habitat: freshwater.

manaensis, Rivulus Hoedeman [J. J.] 1961:61 [Bulletin of Aquatic Biology v. 2 (no. 17); ref. 19257] Creek to St. Patawa, Mana River, French Guiana. Holotype: ZMA 102252a. Paratypes: ZMA 102252b (3). Type catalog: Nijssen et al. 1982:71 [ref. 19236]. Combined with a neuter genus, the adjective should be manaense. •Synonym of Rivulus agilae Hoedeman 1954 -- (Huber 1992:87, 305 [ref. 20639], Huber 1999:50 [ref. 23834], Lazara 2001:270 [ref. 25711], Costa in Reis et al. 2003:534 [ref. 27061]). •Valid as Laimosemion manaense (Hoedeman 1961) -- (Costa 2011:239 [ref. 31655] as manaensis). •Synonym of Laimosemion agilae (Hoedeman 1954). Current status: Synonym of Laimosemion agilae (Hoedeman 1954). Rivulidae: Rivulinae. Habitat: freshwater.

nicoi, Rivulus Thomerson [J. E.] & Taphorn [D. C.] 1992:380, Fig. 4 [Ichthyological Exploration of Freshwaters v. 3 (no. 4); ref. 20003] Small forest pools about 500 meters from right bank of Río Ventuari, 4°16'N, 66°23'W, Orinoco drainage, Venezuela. Holotype: MCNG 23891. Paratypes: FMNH 100958 (2); MCNG 23892-93 (1, 1). •Valid as Rivulus nicoi Thomerson & Taphorn 1992 -- (Huber 1999:50 [ref. 23834], Lazara 2001:281 [ref. 25711], Costa in Reis et al. 2003:538 [ref. 27061], Costa 2006:153 [ref. 28875] in subgenus Laimosemion, Schindler & Valdesalici 2011:109 [ref. 31382] in subgenus Owiyeye). •Valid as Laimosemion nicoi (Thomerson & Taphorn 1992) -- (Costa 2011:239 [ref. 31655]). Current status: Valid as Laimosemion nicoi (Thomerson & Taphorn 1992). Rivulidae: Rivulinae. Distribution: Orinoco River basin, Venezuela. Habitat: freshwater.

paryagi, Laimosemion Vermeulen [F. B. M.], Suijker [W. H.] & Collier [G. E.] 2012:183, Figs. 1-2 [aqua, International Journal of Ichthyology v. 18 (no. 4); ref. 32253] Upper Mazaruni River, about 7 miles downstream from Kamarang, 5°43'50"N, 60°30'55"W, Upper Mazaruni District, Guyana, elevation about 495 meters. Holotype: ZMA 124896. Paratypes: ZAM 124897 (1) and 6 F1 generation males. •Valid as Laimosemion paryagi Vermeulen, Suijker & Collier 2012. Current status: Valid as Laimosemion paryagi Vermeulen, Suijker & Collier 2012. Rivulidae: Rivulinae. Distribution: Upper Mazaruni River,, Guyana. Habitat: freshwater.

rectocaudatus, Rivulus Fels [J. F.] & de Rham [P.] 1981:66, Figs 1, 16, 19, 20. [Revue française d'Aquariologie Herpétologie v. 8 (no. 3); ref. 8607] "Vivero Forestal El Varillal", 4°04'S, 73°27'W, 34 kilometers from Iquitos on the Iquitos-Nauta road, Peru. Holotype: MHNG 2079.10. Paratypes: MHNG 2079.11 to .32 (23); MNHN 1981-1263 (6), 1981-1264 (5). Type catalog: Weber 1998:12 [ref. 32707]. Combined with a neuter genus, the adjective should be rectocaudatum. •Valid as Rivulus rectocaudatus Fels & de Rham 1981 -- (Ortega & Vari 1986:19 [ref. 9708], Huber 1992:378 [ref. 20639], Lazara 2001:283 [ref. 25711], Costa in Reis et al. 2003:539 [ref. 27061], Costa 2004:4 [ref. 27570], Costa 2004:11 [ref. 27656], Hrbek et al. 2004:570 [ref. 27910], Costa 2004:2 [ref. 27923], Costa 2006:157 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen et al. 2013:191 [ref. 32954], Vermeulen & Mejia-Vargas 2020:34 [ref. 37938]). •Valid as Laimosemion rectocaudatum (Fels & de Rham 1981) -- (Costa 2011:240 [ref. 31655] as rectocaudatus, Vermeulen et al. 2012:188 [ref. 32253] as rectocaudatus, Costa & Bragança 2013:93 [ref. 32797] as rectocaudatus, Costa & Lazzarotto 2014:372 [ref. 33247] as rectocaudatus, Meza-Vargas et al. 2021:27 [ref. 39298]). Current status: Valid as Laimosemion rectocaudatum (Fels & de Rham 1981). Rivulidae: Rivulinae. Distribution: South America: Amazon River basin (Peru). Habitat: freshwater.

romeri, Rivulus Costa [W. J. E. M.] 2003:176, Figs. 1-3 [Arquivos do Museu Nacional de Rio de Janeiro v. 61 (no. 3); ref. 27578] Brook tributary to Igarapé Iauiari, about 0°14.31'N, 68°03.48'W, tributary of Uaupés River which is a tributary of Negro River, Amazon basin, Amazonas, northern Brazil. Holotype: MCP 29751. Paratypes: MCP 29752 (1); UFRJ 5447 (2), 5448 (4, c&s). Named after U. Römer, so being based on a German name the name has to be corrected to roemeri (ICZN Art. 32.5.1). •Valid as Rivulus roemeri Costa 2003 (often seen as romeri) -- (Costa 2004:4 [ref. 27570], Costa 2004:11 [ref. 27656], Costa 2004:2 [ref. 27923], Costa 2006:157 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion romeri (Costa 2003) -- (Costa 2011:240 [ref. 31655], Costa & Bragança 2013:93 [ref. 32797], Costa & Lazzarotto 2014:372 [ref. 33247], Valdesalici 2016:279 [ref. 34270], Valdesalici & Nielsen 2017:102 [ref. 35496]). •Valid as Laimosemion roemeri (Costa 2003). Current status: Valid as Laimosemion roemeri (Costa 2003). Rivulidae: Rivulinae. Distribution: Upper Negro River basin, northern Brazil. Habitat: freshwater.

sape, Rivulus Lasso-Alcalá [O. M.], Taphorn [D. C.], Lasso [C. A.] & León-Mata [O.] 2006:23, Figs. 1-3 [Zootaxa No. 1275; ref. 28774] Small stream, a tributary entering right side of Ichún River, downstream from Ichún, on Espuma Falls, tributary of Paragua River, Caroni River system, Orinoco River basin, Bolivar State, Venezuela., about 4°46'04N, 63°27'57"W, elevation 340 meters. Holotype: MHNLS 18934. Paratypes: ANSP 182913 (4); MCNG 54730 (4), 54731 (7); MBVCV-V-32971 (3); MHNLS 18935 (4), 18936 (6), 18937 (1) •Valid as Rivulus sape Lasso-Alcalá, Taphorn, Lasso & León-Mata 2006. •Valid as Laimosemion sape (Lasso-Alcalá, Taphorn, Lasso & León-Mata 2006) -- (Costa 2011:240 [ref. 31655], Costa & Lazzarotto 2014:372 [ref. 33247]). Current status: Valid as Laimosemion sape (Lasso-Alcalá, Taphorn, Lasso & León-Mata 2006). Rivulidae: Rivulinae. Distribution: Paragua River system of upper Caroni River drainage, Orinoco River basin, Venezuela. Habitat: freshwater.

sladkowskii, Rivulus Vermeulen [F. B. M.] 2023:103, Figs. 1-6 [Killi-Data Series 2023; ref. 40177] Small creek, about 14.6 km southeast of the indigenous village Mitú, Vaupés Department, eastern Colombia, 1°9'57.12"N, 70°8'54.18"W, elevation 190 meters. Holotype: CIUA 0008005. Paratypes: CIUA 0008006 (9), 0008007 (2). Genus tentative. •Valid as Laimosemion sladkowskii (Vermeulen 2023). Current status: Valid as Laimosemion sladkowskii (Vermeulen 2023). Rivulidae: Rivulinae. Distribution: South America: upper Vaupés River drainage, Vaupés Department, eastern Colombia. Habitat: freshwater.

staecki, Rivulus Schindler [I.] & Valdesalici [S.] 2011:111, Figs. 1-5 [Vertebrate Zoology v. 61 (no. 1); ref. 31382] Rio Negro drainage, pond close to village Arigua [Darigua on p. 112], about 20 km south of San Carlos de Rio Negro, ca. 1°50'N, 67°02'W, Estado Amazonas, Venezuela. Holotype: MCNG-UNELLEZ 56350. Paratypes: MCNG-UNELLEZ 56351 (1); MTD F 32344-32348 and 32397-32400 (9), plus author collection (1, c&s). •Valid as Rivulus staecki Schindler & Valdesalici 2011 -- (Vermeulen et al. 2013:191 [ref. 32954], Vermeulen & Mejia-Vargas 2020:34 [ref. 37938]). •Valid as Laimosemion staecki (Schlinder & Valdesalici 2011) -- (Costa & Lazzarotto 2014:372 [ref. 33247]). Current status: Valid as Laimosemion staecki (Schindler & Valdesalici 2011). Rivulidae: Rivulinae. Distribution: Rio Negro Basin, Amazonas, Venezuela and Colombia. Habitat: freshwater.

strigatus, Rivulus Regan [C. T.] 1912:502 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 59); ref. 3648] Amazon River basin [Rio de Prata, tributary of rio Jari, Pará]. Holotype (unique): BMNH 1912.8.30.5. Combined with a neuter genus, the adjective should be strigatum. •Synonym of Rivulus geayi Vaillant 1899 -- (Huber 1991:70 [ref. 19721], Huber 1992 [ref. 20639], Fernández & Butí 1996:255 [ref. 22775], Huber 1999:50 [ref. 23834], Lazara 2001:275 [ref. 25711], Hrbek et al. 2004:569 [ref. 27910]). •Valid as Rivulus strigatus Regan 1912 -- (Costa in Reis et al. 2003:539 [ref. 27061], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion strigatum (Regan 1912) -- (Costa 2011:240 [ref. 31655] as strigatus, Vermeulen et al. 2012:188 [ref. 32253] as strigatus, Valdesalici & García Gil 2015:169 [ref. 34010] as strigatus). Current status: Valid as Laimosemion strigatum (Regan 1912). Rivulidae: Rivulinae. Distribution: Lower Amazon River basin, Brazil. Habitat: freshwater.

tecminae, Rivulus Thomerson [J. E.], Nico [L. G.] & Taphorn [D. C.] 1992:290, Figs. 1-3 [Ichthyological Exploration of Freshwaters v. 2 (no. 4); ref. 14220] Open savanna pools about 500 meters from left bank, Río Guayapo, Río Orinoco basin, Venezuela, 4°16'N, 67°20'W. Holotype: MCNB 23886. Paratypes: FMNH 100599 (4); MBUCV-V-20344 (4); MCNG 21363-64 (9, 46), 21368-69 (7, 33), 21372 (20), 21375 (7), 21844 (1), 23887 (1), 23899 (6), 23905 (2), 23907 (1), 23909 (2), 23190 (12); MAC-PAY 1155 (13). Type catalog: Provenzano et al. 1998:17 [ref. 24196]. •Valid as Rivulus tecminae Thomerson, Nico & Taphorn 1992 -- (Huber 1992:425 [ref. 20639], Lazara 2001:284 [ref. 25711], Costa 2004:4 [ref. 27570], Radda 2004:21 [ref. 27638], Costa 2004:11 [ref. 27656], Hrbek et al. 2004:573 [ref. 27910], Costa 2004:2 [ref. 27923], Costa 2006:157, 160 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen et al. 2013:191 [ref. 32954], Vermeulen & Mejia-Vargas 2020:19 [ref. 37935], Vermeulen & Mejia-Vargas 2020:33 [ref. 37938]). •Valid as Laimosemion tecminae (Thomerson, Nico & Taphorn 1992) -- (Costa 2011:240 [ref. 31655], Costa & Lazzarotto 2014:372 [ref. 33247]). Current status: Valid as Laimosemion tecminae (Thomerson, Nico & Taphorn 1992). Rivulidae: Rivulinae. Distribution: Orinoco River basin, Venezuela and upper Negro River basin, Brazil and Colombia. Habitat: freshwater.

tomasi, Rivulus Vermeulen [F. B. M.], Valdesalici [S.] & García Gil [J. R.] 2013:188, Figs. 1-2 [aqua, International Journal of Ichthyology v. 19 (no. 4); ref. 32954] Tobogán da la Selva, creek forming a waterslide near the village Coromata, about 31 km south starting at the roundabout near the airport of Puerto Ayacucho, Amazonas Territories, Venezuela. 5°23’16'N, 67°37’00'W. Holotype: MCNG 56580. Paratypes: MCNC. Plus non-type specimens. •Valid as Rivulus tomasi Vermeulen, Valdesalici & García Gil 2013 -- (Vermeulen & Mejia-Vargas 2020:34 [ref. 37938]). •Valid as Laimosemion tomasi (Vermeulen, Valdesalici & García Gil 2013). Current status: Valid as Laimosemion tomasi (Vermeulen, Valdesalici & García-Gil 2013). Rivulidae: Rivulinae. Distribution: Upper Orinoco basin, Amazonas Territories, Venezuela. Habitat: freshwater.

torrenticola, Rivulus Vermeulen [F. B. M.] & Isbrücker [I. J. H.] 2000:186, Figs. 1-2 [Beaufortia v. 50 (no. 10); ref. 25219] Little creek at right bank of the Kamarang River, upper Mazaruni Reserve, near Kamarang village, 05°50'20"N, 60°30'58"W, Guyana. Holotype: ZMA 123467. Paratypes: ZMA 115035 (2), 250151 [allotype] [ex ZAM 123468] (1), 123469-480 (1 ea,), 123481-82 (2, 2, c&s). •Valid as Rivulus torrenticola Vermeulen & Isbrücker 2000 -- (Géry & Zarske 2002:36 [ref. 26555], Costa in Reis et al. 2003:539 [ref. 27061], Suijker & Collier 2006:10 [ref. 28729], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion torrenticola (Vermeulen & Isbrücker 2000) -- (Costa 2011:240 [ref. 31655], Vermeulen et al. 2012:187 [ref. 32253]). Current status: Valid as Laimosemion torrenticola (Vermeulen & Isbrücker 2000). Rivulidae: Rivulinae. Distribution: Kamarand River basin, Guyana. Habitat: freshwater.

uakti, Rivulus Costa [W. J. E. M.] 2004:2, Figs. 1-2 [Zootaxa No. 465; ref. 27570] Stream near igarapé Iá, kilometer 9.4 of road São Gabriel da Cachoeira to Cucuí, upper rio Negro drainage, rio Amazonal basin, São Gabriel da Cachoeira, Estado Amazonas, northern Brazil, 0°03'51.1"S, 66°59'46.9"W, elevation 99 meters. Holotype: UFRJ 5925. Paratypes: MCP 34858 (2); UFRJ 5926 (36), 5927 (4, 2 c&s). •Valid as Rivulus uakti Costa 2004 -- (Costa 2004:11 [ref. 27656], Hrbek et al. 2004:575 [ref. 27910], Costa 2004:2 [ref. 27923], Costa 2006:157, 159 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen et al. 2013:191 [ref. 32954]). •Valid as Laimosemion uakti (Costa 2004) -- (Costa 2011:240 [ref. 31655], Costa & Bragança 2013:93 [ref. 32697], Costa & Lazzarotto 2014:372 [ref. 33247], Valdesalici 2016:279 [ref. 34270]). Current status: Valid as Laimosemion uakti (Costa 2004). Rivulidae: Rivulinae. Distribution: Upper Negro River basin, Amazon River basin, northern Brazil. Habitat: freshwater.

uatuman, Rivulus Costa [W. J. E. M.] 2004:2, Figs. 1-2 [Zootaxa No. 696; ref. 27923] Temporary pool near stream close to Rio Uatumã, rio Amazonas basin, 1°56'19.6"S, 59°59'27.30.6"W, Balbina, Estado do Amazonas, Brazil, elevation 43 meters. Holotype: UFRJ 6022. Paratypes: UFRJ 6023 (3), 6024 (2, 1 c&s). •Valid as Rivulus uatuman Costa 2004 -- (Costa 2006:157, 159 [ref. 28875] in subgenus Owiyeye, Schindler & Valdesalici 2011:109 [ref. 31382], Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion uatuman (Costa 2004) -- (Costa 2011:240 [ref. 31655], Costa & Bragança 2013:95 [ref. 32797], Costa & Lazzarotto 2014:372 [ref. 33247], Valdesalici 2016:279 [ref. 34270]). Current status: Valid as Laimosemion uatuman (Costa 2004). Rivulidae: Rivulinae. Distribution: Temporary pools, Uatumã River drainage, Amazon River basin, northern Brazil. Habitat: freshwater.

ubim, Laimosemion Costa [W. J. E. M.] & Lazzarotto [H.] 2014:372, Figs. 1-3 [Ichthyological Exploration of Freshwaters v. 24 (no. 4) [for 2013]; ref. 33247] Estado do Amazonas, Maraã, a stream tributary to Igarapé do Ubim, Lago Amanã system, Reserva de Desenvolvimento Sustentável Amanã, Japura-Solimões river drainage, Rio Amazonas basin, 2°29'53"S, 64°36'58"W, Brazil. Holotype: INPA 33978. Paratypes: IDSM 2296 (2); INPA 33979 (1), 33980 (8); UFRJ 8240 (6), 8241 (4). •Valid as Rivulus ubim (Costa & Lazzarotto 2014) -- (Vermeulen 2023:109 [ref. 40177]). •Valid as Laimosemion ubim Costa & Lazzarotto 2014 -- (Valdesalici 2016:279 [ref. 34270], Valdesalici & Nielsen 2017:102 [ref. 35496], Nielsen et al. 2022:42 [ref. 39106]). Current status: Valid as Laimosemion ubim Costa & Lazzarotto 2014. Rivulidae: Rivulinae. Distribution: Lago Amanã system, Central Amazon, northern Brazil. Habitat: freshwater.

xiphidius, Rivulus Huber [J. H.] 1979:66, Fig. 3 [Revue française d'Aquariologie Herpétologie v. 6 (no. 3); ref. 8826] Upstream of Saint-Georges, in the back of Maripa falls, a few hundred meters from Oyapock, French Guiana. Holotype: MNHN 1979-284. Paratypes: MNHN 1979-0285 (5). •Valid as Rivulus xiphidius Huber 1979 -- (Huber 1991:71 [ref. 19721], Huber 1992:461 [ref. 20639], Keith et al. 2000:48 [ref. 24547], Lazara 2001:286 [ref. 25711], Costa in Reis et al. 2003:540 [ref. 27061], Suijker & Collier 2006:10 [ref. 28729], Keith et al. 2006:137 [ref. 28851], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion xiphidius (Huber 1979) -- (Costa 2011:240 [ref. 31655], Vermeulen et al. 2012:188 [ref. 32253]). Current status: Valid as Laimosemion xiphidius (Huber 1979). Rivulidae: Rivulinae. Distribution: Oyapock River basin and adjacent coastal drainages: Brazil and French Guiana. Habitat: freshwater.