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

Genera in the family or subfamily Rivulidae: [ 58 ] records

Acantholebias (subgenus of Austrolebias) Costa [W. J. E. M.] 2008:50 Masc. Cynolebias luteoflammulatus Vaz-Ferreira, Sierra de Soriano & Scaglia de Paulete 1964. Type by original designation (also monotypic). •Valid as Acantholebias Costa 2008 -- (Alonso et al. 2023:10 [ref. 40292]). •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Acrolebias (subgenus of Austrolebias) Costa [W. J. E. M.] 2008:51 Masc. Cynolebias carvalhoi Myers 1947. Type by original designation. •Valid as Acrolebias Costa 2008 -- (Alonso et al. 2023:12 [ref. 40292]). •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Amatolebias Alonso [F.], Terán [G. E.], Alanís [W. S. S.], Calviño [P.], Montes [M. M.], García [I. D.], Barneche [J. A.], Almirón [A.], Ciotek [L.], Giorgis [P.] & Casciotta [J.] 2023:7 Masc. Austrolebias wichi Alonso, Terán, Calviño, García, Cardoso & García 2018. Type by original designation. •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Anablepsoides (subgenus of Rivulus) Huber [J. H.] 1992:43 Masc. Rivulus atratus Garman 1895. Type by monotypy. Huber 2012 [ref. 32949] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivilus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860 -- (Costa 1998:77 [ref. 23792], Costa in Reis et al. 2003:534 [ref. 27061], Huber 2012:17 [ref. 32947]). •Synonym of Rivulus Poey 1860, but a valid subgenus Anablepsoides -- (Lazara 2001:269 [ref. 25711], Costa 2006:147 [ref. 28875], Schindler & Valdesalici 2011:113 [ref. 31382]). •Valid as Anablepsoides Huber 1992 -- (Costa 2011:242 [ref. 31655], Costa 2013:345 [ref. 32528], Costa et al. 2013:283 [ref. 33108], Valdesalici & Schindler 2013:295 [ref. 33109], Valdesalici 2015:241 [ref. 34049], Nielsen et al. 2016:69 [ref. 34406], Nielsen 2016:165 [ref. 34861], Valdesalici & Gil 2017:11 [ref. 35110], Loureiro et al. 2018:6 [ref. 36240], Valdesalici & Gil 2019:1 [ref. 37074], Nielsen & Veiga 2021:5 [ref. 38269], Nielsen et al. 2022:27 [ref. 39105]). Current status: Valid as Anablepsoides Huber 1992. Rivulidae: Rivulinae.

Aphyolebias Costa [W. J. E. M.] 1998:78 Masc. Pterolebias peruensis Myers 1954. Type by original designation. •Valid as Aphyolebias Costa 1998 -- (Lazara 2001:5 [ref. 25711], Costa in Reis et al. 2003:526 [ref. 27061], Costa 2003:156 [ref. 27616], Costa 2004:2 [ref. 27874], Costa 2004:2 [ref. 27924], Costa 2005:24 [ref. 28393], Huber 2005:14 [ref. 28394]). •Synonym of Moema Costa 1989 -- (Costa 2014:177 [ref. 35439], Loureiro et al. 2018:5 [ref. 36240]). Current status: Synonym of Moema Costa 1989. Rivulidae: Rivulinae.

Argolebias (subgenus of Austrolebias) Costa [W. J. E. M.] 2008:51 Masc. Cynolebias nigripinnis Regan 1912. Type by original designation. •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. •Valid as Argolebias Costa 2008 -- (Alonso et al. 2023:8 [ref. 40292], Alonsa et al. 2024:298 [ref. 40863]). Current status: Valid as Argolebias Costa 2008. Rivulidae: Cynolebiinae.

Atlantirivulus (subgenus of Rivulus) Costa [W. J. E. M.] 2008:46 Masc. Rivulus santensis Köhler 1906. Type by original designation. Huber 2012 [ref. 32947] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivulus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860, but a valid subgenus Atlantirivulus -- (Costa 2008:46 [ref. 29622], Huber 2012:17 [ref. 32947]). •Valid as Atlantirivulus Costa 2008 -- (Costa 2011:243 [ref. 31655], Costa 2014:9 [ref. 33307], Bertaco et al. 2016:423 [ref. 34561], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Atlantirivulus Costa 2008. Rivulidae: Rivulinae.

Austrofundulus Myers [G. S.] 1932:159 Masc. Austrofundulus transilis Myers 1932. Type by original designation (also monotypic). •Synonym of Rachovia Myers 1927 -- (Costa 1990:85 [ref. 16650], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:6 [ref. 36240]). •Valid as Austrofundulus Myers 1932 -- (Taphorn & Thomerson 1978:407 [ref. 4337], Parenti 1981:487 [ref. 7066], Costa 1998:80 [ref. 23792], Huber 1999:40 [ref. 23834], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:57 [ref. 25711], Costa in Reis et al. 2003:527 [ref. 27061], Costa 2004:2 [ref. 27874], Hrbek et al. 2005:12 [ref. 28063], Huber 2005:15 [ref. 28394]). Current status: Valid as Austrofundulus Myers 1932. Rivulidae: Rivulinae.

Austrolebias Costa [W. J. E. M.] 1998:75 Masc. Cynolebias bellottii Steindachner 1881. Type by original designation. •Valid as Austrolebias Costa 1998 -- (Lazara 2001:59 [ref. 25711], Costa & Cheffe 2001:180 [ref. 25851], Costa 2002:916 [ref. 26505], Costa in Reis et al. 2003:527 [ref. 27061], Costa et al. 2004:13 [ref. 27657], Costa 2004:2 [ref. 27874], Loureiro et al. 2004:21 [ref. 27658], Huber 2005:15 [ref. 28394], Calviño 2005:183 [ref. 28679], Costa 2006:10 [ref. 28708], Calviño 2007:22 [ref. 29117], Loureiro & García 2008:1 [ref. 30099], Ferrer dos Santos et al. 2008:175 [ref. 29705], Costa 2009:179 [ref. 30417], Costa 2009:149 [ref. 30511], Costa 2009:180 [ref. 30417], Costa 2010:1996 [ref. 30858], Costa 2011:98 [ref. 31504], Loureiro et al. 2011:335 [ref. 31392], Montãna et al. 2012:589 [ref. 32122], Lanés et al. 2014:117 [ref. 33234], Costa 2014:25 [ref. 33309], Costa 2014:97 [ref. 33514], Volcan et al. 2014:161 [ref. 33543], Nielsen & Pillet 2015:172 [ref. 34011], Alonso et al. 2016:1 [ref. 34643], Bertaco et al. 2016:423 [ref. 34561], Volcan et al. 2017:387 [ref. 35260], Costa et al. 2017:139 [ref. 35626], Volcan et al. 2017:141 [ref. 35644], Alonso et al. 2018:1 [ref. 35938], Loureiro et al. 2018:9 [ref. 36240], Serra & Loureiro 2018:547 [ref. 36329], García et al. 2019:[1] [ref. 36487], Volcan & Severo-Neto 2019:541 [ref. 36539], Fernandes et al. 2020:[3] 3 [ref. 38700], Lanés et al. 2021:499 [ref. 38189], Volcan et al. 2021:87 [ref. 38292], Alonso et al. 2023:9 [ref. 40292]). Current status: Valid as Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Bathylebias (subgenus of Cynolebias) Costa [W. J. E. M.] 2008:56 Masc. Cynolebias griseus Costa, Lacerda & Brasil 1990. Type by original designation. •Synonym of Cynolebias Steindachner 1876, but a valid subgenus Bathylebias as described. Current status: Synonym of Cynolebias Steindachner 1876. Rivulidae: Cynolebiinae.

Benirivulus (subgenus of Rivulus) Costa [W. J. E. M.] 2006:150 Masc. Rivulus beniensis Myers 1927. Type by original designation (also monotypic). •Uncertain -- (Huber 2012:17 [ref. 32947]). •Synonym of Anablepsoides Huber 1992 -- (Costa 2011:242 [ref. 31193]). Current status: Synonym of Anablepsoides Huber 1992. Rivulidae: Rivulinae.

Campellolebias Vaz-Ferreira [R.] & Sierra de Soriano [B.] 1974:14 Masc. Campellolebias brucei Vaz-Ferreira & Sierra de Soriano 1974. Type by original designation (also monotypic). •Synonym of Cynolebias Steindachner 1876 -- (Parenti 1981:490 [ref. 7066]). •Valid as Campellolebias Vaz-Ferreira & Sierra de Soriano 1974 -- (Costa et al. 1989 [ref. 9292], Costa 1990:88 [ref. 16650], Costa 1995:96 [ref. 22097], Costa 1995:349 [ref. 22103], Costa 1998:74 [ref. 23792], Murphy et al. 1999:292 [ref. 25492], Lazara 2001:69 [ref. 25711], Costa 2002:11 [ref. 26061], Costa 2002:280 [ref. 26544], Costa in Reis et al. 2003:528 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2006:34 [ref. 28724], Costa 2008:147 [ref. 29596], Costa 2012:313 [ref. 31750], Costa 2014:25 [ref. 33309], Costa 2016:129 [ref. 34776] in Cynopoecilini, Loureiro et al. 2018:7 [ref. 36240]). Current status: Valid as Campellolebias Vaz-Ferreira & Sierra de Soriano 1974. Rivulidae: Cynolebiinae.

Cryptolebias Costa [W. J. E. M.] 2004:115 Masc. Fundulus brasiliensis Valenciennes 1821. Type by original designation. Preoccupied by Cryptolebias Gaudant 1978 in fossil fishes. Replaced by Kryptolebias Costa 2004:107 [ref. 28584]. •Synonym of Kryptolebias Costa 2004 -- (Vermeulen & Hrbek 2005:17 [ref. 28142], Huber 2005:15 [ref. 28394]). 1°Homonym. Current status: Synonym of Kryptolebias Costa 2004. Rivulidae: Kryptolebiatinae.

Cynodonichthys Meek [S. E.] 1904:101 Masc. Cynodonichthys tenuis Meek 1904. Type by original designation (also monotypic). Huber 2012 [ref. 32947] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivulus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860, but a valid subgenus Cynodonichthys -- (Lazara 2001:269 [ref. 25711], Costa 2006:139 [ref. 28875], Huber 2012:17 [ref. 32947], Vermeulen 2013:42 [ref. 33089]). •Synonym of Rivulus Poey 1860 -- (Parenti 1981:481 [ref. 7066], Costa 1990:85 [ref. 16650], Costa 1991:328 [ref. 20644], Costa 1998:77 [ref. 23792], Costa in Reis et al. 2003:534 [ref. 27061], Gomes 2023:4 [ref. 40174]). •Valid as Cynodonichthys Meek 1904 -- (Costa 2011:241 [ref. 31655], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Cynodonichthys Meek 1904. Rivulidae: Rivulinae.

Cynolebias Steindachner [F.] 1876:172 Masc. Cynolebias porosus Steindachner 1876. Type by monotypy. Misspelled Cynelebias in Zoological Record for 1876. •Valid as Cynolebias Steindachner 1876 -- (Parenti 1981:490 [ref. 7066], Amato 1986 [ref. 9170], Costa et al. 1988 [ref. 6372], Malabarba 1989:158 [ref. 14217], Costa 1989 [ref. 14323], Costa 1990:86 [ref. 16650], Costa & Brasil 1990 [ref. 14543], Costa & Brasil 1991 [ref. 16651], Lazara 1991:139 [ref. 20508], Costa & Brasil 1993 [ref. 21101], Costa 1995:33 [ref. 22097], Costa 1998:76 [ref. 23792], Murphy et al. 1999:292 [ref. 25492], Lazara 2001:77 [ref. 25711], Costa 2001:347 [ref. 25719], Costa 2002:916 [ref. 26505], Costa 2002:379 [ref. 26544], Costa in Reis et al. 2003:529 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa et al. 2007:129 [ref. 29226], Costa 2009:145, 147, 149 [ref. 30511], Costa 2010:1996 [ref. 30858], Costa et al. 2010:283 [ref. 30866], Costa et al. 2013:1 [ref. 32952], Costa 2014:25 [ref. 33309], Costa 2014:79 [ref. 33510], Costa 2016:129 [ref. 34776] in Cynopoecilini, Costa 2017:333 [ref. 35623], Loureiro et al. 2018:8 [ref. 36240], Nielsen et al. 2018:113 [ref. 35996]). Current status: Valid as Cynolebias Steindachner 1876. Rivulidae: Cynolebiinae.

Cynopoecilus Regan [C. T.] 1912:642 Masc. Cynolebias melanotaenia Regan 1912. Type by original designation (also monotypic). •Synonym of Cynolebias Steindachner 1876 -- (Parenti 1981:490 [ref. 7066]). •Valid as Cynopoecilus Regan 1912 -- (Costa 1990:88 [ref. 16650], Costa 1995:100 [ref. 22097], Costa 1998:73 [ref. 23792], Lazara 2001:79 [ref. 25711], Costa 2002:12 [ref. 26061], Costa 2002:280 [ref. 26544], Costa in Reis et al. 2003:530 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2008:147 [ref. 29596], Costa 2014:25 [ref. 33309], Ferrer et al. 2014:846 [ref. 33589], Costa et al. 2016:1 [ref. 34354], Bertaco et al. 2016:424 [ref. 34561], Costa 2016:129 [ref. 34776], Loureiro et al. 2018:7 [ref. 36240]). Current status: Valid as Cynopoecilus Regan 1912. Rivulidae: Cynolebiinae.

Cypholebias (subgenus of Austrolebias) Costa [W. J. E. M.] 2008:56 Masc. Cynolebias robustus Günther 1883. Type by original designation. •Valid as Cypholebias Costa 2008 -- (Alonso et al. 2023:12 [ref. 40292]). •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Garcialebias Alonso [F.], Terán [G. E.], Alanís [W. S. S.], Calviño [P.], Montes [M. M.], García [I. D.], Barneche [J. A.], Almirón [A.], Ciotek [L.], Giorgis [P.] & Casciotta [J.] 2023:13 Masc. Cynolebias reicherti Loureiro & García 2004. Type by original designation. •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Gnatholebias Costa [W. J. E. M.] 1998:77 Masc. Pterolebias zonatus Myers 1935. Type by original designation. •Synonym of Pterolebias Garman 1895 -- (Schindler 2004:74 [ref. 28034]). •Valid as Gnatholebias Costa 1998 -- (Lazara 2001:167 [ref. 25711], Costa in Reis et al. 2003:530 [ref. 27061], Costa 2003:156 [ref. 27616], Costa 2004:2 [ref. 27874], Costa 2005:21 [ref. 28393], Huber 2005:14 [ref. 28394], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Gnatholebias Costa 1998. Rivulidae: Rivulinae.

Gymnolebias (subgenus of Austrolebias) Costa [W. J. E. M.] 2008:55 Masc. Cynolebias gymnoventris Amato 1986. Type by original designation. •Valid as Gymnolebias Costa 2008 -- (Alonso et al. 2023:10 [ref. 40292]). •Synonym of Austrolebias Costa 1998 but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Hypsolebias (subgenus of Simpsonichthys) Costa [W. J. E. M.] 2006:17 Masc. Cynolebias flavicaudatus Costa & Brasil 1990. Type by original designation. •Synonym of Simpsonichthys Carvalho 1959, but a valid subgenus Hypsolebias as described -- (Costa 2007:54 [ref. 29445], Nielsen et al. 2010:57 [ref. 30828], Costa 2010:1997 [ref. 30858]). •Valid as Hypsolebias Costa 2006 -- (Costa & Amorim 2011:99 [ref. 31380], Costa 2011:221 [ref. 31654], Costa et al. 2012:72 [ref. 31845], Nielsen et al. 2012:63 [ref. 32283], Costa et al. 2013:1 [ref. 32952], Costa 2013:141 [ref. 33008], Nielsen et al. 2014:27 [ref. 33143], Costa 2014:25 [ref. 33309], Nielsen et al. 2014:131 [ref. 33451], Ponzetto et al. 2016:[7] [ref. 34144] but paraphyletic, Britzke et al. 2016:123 [ref. 34461], Costa et al. 2018:141 [ref. 36034], Loureiro et al. 2018:8 [ref. 36240], Costa et al. 2018:495 [ref. 36319], Ramos et al. 2023:1 [ref. 40546], Abrantes et al. 2023:545 [ref. 40706]). Current status: Valid as Hypsolebias Costa 2006. Rivulidae: Cynolebiinae.

Kryptolebias Costa [W. J. E. M.] 2004:107 Masc. Fundulus brasiliensis Valenciennes 1821. Type by being a replacement name. Replacement name for Cryptolebias Costa 2004, preoccupied by Cryptolebias Gaudant 1978 in fossil fishes. •Valid as Kryptolebias Costa 2004 -- (Vermeulen & Hrbek 2005:1 [ref. 28142], Huber 2005:15 [ref. 28394], Costa 2006:6 [ref. 28624], Costa 2007:7 [ref. 29397], Scharpf 2007:10 [ref. 30398], Costa 2011:185 [ref. 31358], Huber 2012:17 [ref. 32947], Berbel-Filho et al. 2016:[1] [ref. 34830], Costa 2016:183 [ref. 34932], Loureiro et al. 2018:3 [ref. 36240]). Current status: Valid as Kryptolebias Costa 2004. Rivulidae: Kryptolebiatinae.

Laimosemion (subgenus of Rivulus) Huber [J. H.] 1999:49 Neut. Rivulus geayi Vaillant 1899. Type by original designation. Huber 2012 [ref. 32947] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivulus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860 -- (Costa in Reis et al. 2003:534 [ref. 27061], Huber 2012:17 [ref. 32947]). •Synonym of Rivulus Poey 1860, but a valid subgenus Laimosemion -- (Lazara 2001:269 [ref. 25711], Costa 2006:152 [ref. 28875], Vermeulen et al. 2013:187 [ref. 32954]). •Valid as Laimosemion Huber 1999 -- (Costa 2011:239 [ref. 31655], Vermeulen et al. 2012:182 [ref. 32253], Costa & Bragança 2013:93 [ref. 32797], Costa & Lazzarotto 2014:371 [ref. 33247], Valdesalici & García Gil 2015:166 [ref. 34010], Valdesalici 2016:279 [ref. 34270], Valdesalici & Nielsen 2017:97 [ref. 35496], Loureiro et al. 2018:6 [ref. 36240], Nielsen et al. 2022:37 [ref. 39106]). Current status: Valid as Laimosemion Huber 1999. Rivulidae: Rivulinae.

Leptolebias (subgenus of Cynolebias) Myers [G. S.] 1952:140 Masc. Cynopoecilus marmoratus Ladiges 1934. Type by original designation. •Synonym of Cynolebias Steindachner 1876 -- (Parenti 1981:490 [ref. 7066]). •Valid as Leptolebias Myers 1952 -- (Costa 1990:88 [ref. 16650], Costa 1995:85 [ref. 22097], Costa 1998:73 [ref. 23792], Murphy et al. 1999:292 [ref. 25492], Lazara 2001:193 [ref. 25711], Costa 2002:11 [ref. 26061], Costa 2002:917 [ref. 26505], Costa 2002:380 [ref. 26544], Costa in Reis et al. 2003:530 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2008:149 [ref. 29596], Costa 2013:357 [ref. 32567], Costa 2014:25 [ref. 33309], Costa 2016:129 [ref. 34776] in Cynopoecilini, Loureiro et al. 2018:7 [ref. 36240]). Current status: Valid as Leptolebias Myers 1952. Rivulidae: Cynolebiinae.

Leptopanchax Costa [W. J. E. M.] 2016:128 Masc. Cynolebias citrinipinnis Costa, Lacerda & Tanizaki 1988. Type by original designation. In Cynopoecilini. •Valid as Leptopanchax Costa 2016 -- (Loureiro et al. 2018:7 [ref. 36240], Costa 2019:73 [ref. 36869]). Current status: Valid as Leptopanchax Costa 2016. Rivulidae: Cynolebiinae.

Llanolebias Hrbek [T.] & Taphorn [D. C.] 2008:36 Masc. Rivulus stellifer Thomerson & Turner 1973. Type by original designation (also monotypic). •Valid as Llanolebias Hrbek & Taphorn 2008 -- (Costa 2014:177 [ref. 35439], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Llanolebias Hrbek & Taphorn 2008. Rivulidae: Rivulinae.

Maratecoara Costa [W. J. E. M.] 1995:68 Fem. Cynolebias lacortei Lazara 1991. Type by original designation (also monotypic). Also appeared later in Costa 1995:21 [ref. 22097]. •Valid as Maratecoara Costa 1995 -- (Costa 1998:81 [ref. 23792], Costa 1998:140 [ref. 23879], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:201 [ref. 25711], Costa in Reis et al. 2003:531 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2007:31 [ref. 28993], Huber 2012:14 [ref. 32947], Nielsen et al. 2014:87 [ref. 33275], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Maratecoara Costa 1995. Rivulidae: Rivulinae.

Matilebias Alonso [F.], Terán [G. E.], Alanís [W. S. S.], Calviño [P.], Montes [M. M.], García [I. D.], Barneche [J. A.], Almirón [A.], Ciotek [L.], Giorgis [P.] & Casciotta [J.] 2023:9 Masc. Cynolebias alexandri Castello & López 1974. Type by original designation. •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Megalebias Costa [W. J. E. M.] 1998:76 Masc. Cynolebias wolterstorffi Ahl 1924. Type by original designation. •Valid as Megalebias Costa 1998 -- (Lazara 2001:203 [ref. 25711], Costa 2002:916 [ref. 26505], Costa in Reis et al. 2003:531 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Alonso et al. 2023:11 [ref. 40292]). •Synonym of Austrolebias Costa 1998 -- (Costa 2006:10 [ref. 28708]). •Synonym of Austrolebias Costa 1998, but a valid subgenus as described -- (Costa 2008:55 [ref. 30126]). Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Melanorivulus (subgenus of Rivulus) Costa [W. J. E. M.] 2006:161 Masc. Rivulus punctatus Boulenger 1895. Type by original designation. Huber 2012 [ref. 32947] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivulus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860 but a valid subgenus Melanorivulus as described -- (Costa 2007:194 [ref. 29337], Costa 2007:55 [ref. 29394], Costa 2008:313 [ref. 29388], Costa 2008:345 [ref. 29385], Costa 2008:351 [ref. 29384], Costa & Brasil 2008:82 [ref. 29541], Schindler & Etzel 2008:35 [ref. 29621], Costa 2010:369 [ref. 30690], Costa 2010:193 [ref. 30143], Costa & De Luca 2011:289 [ref. 31185], Valdesalici et al. 2011:105 [ref. 31381], Huber 2012:17 [ref. 32947]). •Valid as Melanorivulus Costa 2006 -- (Costa 2011:240 [ref. 31655], Bragança et al. 2012:51 [ref. 32067], Costa 2012:57 [ref. 32069], Costa 2012:211 [ref. 32292], Costa 2013:277 [ref. 33107], Costa et al. 2014:193 [ref. 33400], Nielsen & Pinto 2015:136 [ref. 33903], Costa et al. 2015:31 [ref. 33784], Nielsen et al. 2016:79 [ref. 34407], Costa 2016:107 [ref. 34900], Costa et al. 2016:267 [ref. 35405], Costa 2017:51 [ref. 35046], Volcan et al. 2017:82 [ref. 35156], Nielsen 2017:55 [ref. 35340], Deprá et al. 2017:111 [ref. 35503], Costa 2018:17 [ref. 35717], Loureiro et al. 2018:6 [ref. 36240], Volcan et al. 2018:263 [ref. 35895], Nielsen & Britzke 2019:35 [ref. 36525], Ywamoto et al. 2020:125 [ref. 37763]). Current status: Valid as Melanorivulus Costa 2006. Rivulidae: Rivulinae.

Micromoema Costa [W. J. E. M.] 1998:78 Fem. Pterolebias xiphophorus Thomerson & Taphorn 1992. Type by original designation (also monotypic). •Valid as Micromoema Costa 1998 -- (Lazara 2001:207 [ref. 25711], Costa in Reis et al. 2003:531 [ref. 27061], Costa 2004:2 [ref. 27874], Costa 2005:24 [ref. 28393], Huber 2005:15 [ref. 28394], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Micromoema Costa 1998. Rivulidae: Rivulinae.

Millerichthys Costa [W. J. E. M.] 1995:18 Masc. Rivulus robustus Miller & Hubbs 1974. Type by original designation (also monotypic). •Valid as Millerichthys Costa 1995 -- (Costa 1998:79 [ref. 23792], Huber 1999:40 [ref. 23834], Lazara 2001:209 [ref. 25711], Costa in Reis et al. 2003:531 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Scharpf 2007:11 [ref. 30398], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Millerichthys Costa 1995. Rivulidae: Rivulinae.

Moema Costa [W. J. E. M.] 1989:223 Fem. Moema piriana Costa 1989. Type by original designation. •Valid as Moema Costa 1989 -- (Costa 1990:87 [ref. 16650], Costa 1998:79 [ref. 23792], Huber 1999:40 [ref. 23834], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:211 [ref. 25711], Costa in Reis et al. 2003:532 [ref. 27061], Huber 2003:14 [ref. 27251], Costa 2003:289 [ref. 27396], Costa 2003:167 [ref. 27617], Costa 2003:2 [ref. 27634], Costa 2004:2 [ref. 27874], Costa 2004:2 [ref. 27924], Huber 2005:15 [ref. 28394], Costa 2014:177 [ref. 35439], Valdesalici et al. 2015:129 [ref. 33902], Valdesalici 2016:66 [ref. 34174], Loureiro et al. 2018:5 [ref. 36240], Valdesalici 2019:103 [ref. 36959], Drawert 2022:1 [ref. 39805], Valdesalici 2023:594 [ref. 40677]). Current status: Valid as Moema Costa 1989. Rivulidae: Rivulinae.

Mucurilebias Costa [W. J. E. M.] 2014:26 Masc. Cynolebias leitaoi Da Cruz & Peixoto 1992. Type by original designation (also monotypic). •Valid as Mucurilebias Costa 2014 -- (Costa 2016:127 [ref. 34776] in Cynopoecilini, Loureiro et al. 2018:7 [ref. 36240]). Current status: Valid as Mucurilebias Costa 2014. Rivulidae: Cynolebiinae.

Nematolebias Costa [W. J. E. M.] 1998:75 Masc. Cynolebias whitei Myers 1942. Type by original designation. •Valid as Nematolebias Costa 1998 -- (Lazara 2001:213 [ref. 25711], Costa 2002:42 [ref. 26064], Costa 2002:917 [ref. 26505], Costa 2006:15 [ref. 28620], Costa 2009:149 [ref. 30511], Costa 2010:1996 [ref. 30858], Costa et al. 2014:225 [ref. 33239], Costa 2014:25 [ref. 33309], Loureiro et al. 2018:8 [ref. 36240]). Current status: Valid as Nematolebias Costa 1998. Rivulidae: Cynolebiinae.

Neofundulus Myers [G. S.] 1924:9 Masc. Fundulus paraguayensis Eigenmann & Kennedy 1903. Type by original designation (also monotypic). •Valid as Neofundulus Myers 1924 -- (Parenti 1981:489 [ref. 7066], Costa 1988 [ref. 14292], Costa 1990:87 [ref. 16650], Costa 1993:616 [ref. 21314], Costa 1998:78 [ref. 23792], Huber 1999:40 [ref. 23834], Britski et al. 1999:140 [ref. 24147], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:215 [ref. 25711], Costa in Reis et al. 2003:532 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:14 [ref. 28394], Nielsen & Brousseau 2013:109 [ref. 32795], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Neofundulus Myers 1924. Rivulidae: Rivulinae.

Notholebias Costa [W. J. E. M.] 2008:156 Masc. Cynolebias minimus Myers 1942. Type by original designation. •Valid as Notholebias Costa 2008 -- (Costa & Amorim 2013:63 [ref. 32799], Costa 2014:25 [ref. 33309], Costa 2016:128 [ref. 34776] in Cynopoecilini, Loureiro et al. 2018:8 [ref. 36240]). Current status: Valid as Notholebias Costa 2008. Rivulidae: Cynolebiinae.

Oditichthys (subgenus of Rivulus) Huber [J. H.] 1999:49 Masc. Rivulus igneus Huber 1991. Type by original designation. •Synonym of Rivulus Poey 1860, but a valid subgenus Oditichthys as described -- (Lazara 2001:269 [ref. 25711]). •Synonym of Rivulus Poey 1860 -- (Costa in Reis et al. 2003:534 [ref. 27061], Costa & De Luca 2011:356 [ref. 31193], Huber 2012:17 [ref. 32947]). •Synonym of Rivulus Poey 1860, subgenus Cynodonichthys Meek 1904 -- (Costa 2006:139 [ref. 28875]). •Synonym of Anablepsoides Huber 1992 -- (Costa 2011:242 [ref. 31655]). Current status: Synonym of Anablepsoides Huber 1992. Rivulidae: Rivulinae.

Ophthalmolebias (subgenus of Simpsonichthys) Costa [W. J. E. M.] 2006:16 Masc. Simpsonichthys constanciae Myers 1942. Type by original designation. •Synonym of Simpsonichthys Carvalho 1959 but a valid subgenus Ophthalmolebias as described -- (Costa 2007:12 [ref. 29445], Costa 2010:1997 [ref. 30858], Costa & Lima 2010:205 [ref. 31041]). •Valid as Ophthalmolebias Costa 2006 -- (Costa 2010:301 [ref. 31187], Costa 2014:25 [ref. 33309], Ponzetto et al. 2016:[7] [ref. 34144] as Ophtalmolebias, Loureiro et al. 2018:8 [ref. 36240]). Current status: Valid as Ophthalmolebias Costa 2006. Rivulidae: Cynolebiinae.

Owiyeye (subgenus of Rivulus) Costa [W. J. E. M.] 2006:156 Masc. Rivulus amanapira Costa 2004. Type by original designation. •Synonym of Rivulus Poey 1860 but a valid subgenus Owiyeye as described -- (Costa & Souza 2009:64 [ref. 30289], Schindler & Valdesalici 2011:109 [ref. 31382]). •Synonym of Rivulus Poey 1860 -- (Huber 2012:17 [ref. 32947]). •Synonym of Laimosemion Huber 1999 -- (Costa 2011:239 [ref. 31655]). •Synonym of Laimosemion Huber 1999, but a valid subgenus Owiyeye Costa 2006 -- (Costa & Bragança 2013:93 [ref. 32697], Valdesalici 2016:279 [ref. 34270], Nielsen et al. 2022:37 [ref. 39106]). Current status: Synonym of Laimosemion Huber 1999. Rivulidae: Rivulinae.

Papiliolebias (subgenus of Plesiolebias) Costa [W. J. E. M.] 1998:319 Masc. Plesiolebias bitteri Costa 1989. Type by monotypy (also monotypic). •Valid as Papiliolebias Costa 1998 -- (Costa 1998:81 [ref. 23792], Lazara 2001:249 [ref. 25711], Costa in Reis et al. 2003:532 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Azpelicueta et al. 2009:313 [ref. 30672], Huber 2012:14 [ref. 32947], Nielsen & Brousseau 2014:53 [ref. 33146], Valdesalici & Brousseau 2014:117 [ref. 33449], Valdesalici et al. 2016:155 [ref. 34860], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Papiliolebias Costa 1998. Rivulidae: Rivulinae.

Pituna Costa [W. J. E. M.] 1989:225 Fem. Pituna poranga Costa 1989. Type by original designation (also monotypic). •Valid as Pituna Costa 1989 -- (Costa 1990:87 [ref. 16650], Costa 1998:80 [ref. 23792], Costa 1998:140 [ref. 23879], Huber 1999:40 [ref. 23834], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:251 [ref. 25711], Costa in Reis et al. 2003:532 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2007:4 [ref. 28993], Huber 2012:14 [ref. 32947], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Pituna Costa 1989. Rivulidae: Rivulinae.

Plesiolebias Costa [W. J. E. M.] 1989:193 Masc. Cynolebias xavantei Costa, Lacerda & Tanizaki 1988. Type by original designation. Date of publication is 1989. Also appeared in Costa 1990 (28 Feb.):86 [ref. 16650]. •Valid as Plesiolebias Costa 1989 -- (Costa 1991 [ref. 13611], Costa 1995:24 [ref. 22097], Costa 1995:73 [ref. 21612], Costa 1998:318 [ref. 23324], Costa 1998:81 [ref. 23792], Costa 1998:140 [ref. 23879], Britski et al. 1999:139 [ref. 24147], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:257 [ref. 25711], Costa in Reis et al. 2003:533 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2007:20 [ref. 28993], Huber 2012:14 [ref. 32947], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Plesiolebias Costa 1989. Rivulidae: Rivulinae.

Poecilopanchax (subgenus of Cynopoecilus) Costa [W. J. E. M.] 2016:129 Masc. Cynopoecilus notabilis Ferrer, Wingert & Malabarba 2014. Type by original designation (also monotypic). •Synonym of Cynopoecilus Regan 1912, but a valid subgenus as described. Current status: Synonym of Cynopoecilus Regan 1912. Rivulidae: Cynolebiinae.

Prorivulus Costa [W. J. E. M.], Lima [S. M. Q.] & Suzart [R. dos R.] in Costa 2004:3 Masc. Prorivulus auriferus Costa, Lima & Suzart 2004. Type by original designation (also monotypic). Huber 2012 [ref. 32947] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivulus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860, but a valid subgenus as described -- (Huber 2012:17 [ref. 32947]). •Valid as Prorivulus Costa, Lima & Suzart 2004 -- (Huber 2005:14 [ref. 28394], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Prorivulus Costa, Lima & Suzart 2004. Rivulidae: Rivulinae.

Pterolebias Garman [S.] 1895:141 Masc. Pterolebias longipinnis Garman 1895. Type by monotypy. •Valid as Pterolebias Garman 1895 -- (Parenti 1981:485 [ref. 7066], Costa 1988 [ref. 14438], Costa 1990:87 [ref. 16650], Costa et al. 1996:91 [ref. 22215], Costa 1998:77 [ref. 23792], Huber 1999:40 [ref. 23834], Britski et al. 1999:139 [ref. 24147], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:263 [ref. 25711], Costa in Reis et al. 2003:533 [ref. 27061], Costa 2003:156 [ref. 27616], Schindler 2004:71 [ref. 28034], Costa 2005:8 [ref. 28393], Huber 2005:14 [ref. 28394], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Pterolebias Garman 1895. Rivulidae: Rivulinae.

Rachovia Myers [G. S.] 1927:119 Fem. Rivulus brevis Regan 1912. Type by original designation. •Valid as Rachovia Myers 1927 -- (Taphorn & Thomerson 1978:387 [ref. 4337], Parenti 1981:486 [ref. 7066], Costa 1990:85 [ref. 16650], Costa 1998:80 [ref. 23792], Huber 1999:40 [ref. 23834], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:265 [ref. 25711], Costa in Reis et al. 2003:533 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:3, 5 [ref. 36240], Berkenkamp 2020:1 [ref. 37695]). Current status: Valid as Rachovia Myers 1927. Rivulidae: Rivulinae.

Renova Thomerson [J. E.] & Taphorn [D. C.] 1995:186 Fem. Renova oscari Thomerson & Taphorn 1995. Type by original designation (also monotypic). •Valid as Renova Thomerson & Taphorn 1995 -- (Costa 1998:79 [ref. 23792], Huber 1999:40 [ref. 23834], Murphy et al. 1999:296 [ref. 25492], Lazara 2001:267 [ref. 25711], Costa in Reis et al. 2003:534 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Renova Thomerson & Taphorn 1995. Rivulidae: Rivulinae.

Rivulichthys Myers [G. S.] 1927:118 Masc. Rivulus rondoni Miranda Ribeiro 1920. Type by original designation (also monotypic). •Synonym of Trigonectes Myers 1925 -- (Parenti 1981:484 [ref. 7066], Costa 1990:137 [ref. 14542], Costa 1990:87 [ref. 16650], Costa 1998:78 [ref. 23792], Costa in Reis et al. 2003:543 [ref. 27061]). •Synonym of Trigonectes Myers 1925, but a valid subgenus Rivulichthys -- (Lazara 2001:309 [ref. 25711]). Current status: Synonym of Trigonectes Myers 1925. Rivulidae: Rivulinae.

Rivulus Poey [F.] 1860:307 Masc. Rivulus cylindraceus Poey 1860. Type by monotypy. •Valid Rivulus Poey 1860 -- (Bussing 1980 [ref. 8732], Parenti 1981:481 [ref. 7066], Fels & Huber 1985:33 [ref. 8162], Costa 1989 [ref. 14319], Costa 1990:85 [ref. 16650], Huber 1991 [ref. 19721], Costa 1991:328 [ref. 20644], Costa 1991 [ref. 20033], Huber 1992 [ref. 20639], Costa 1995:207 [ref. 21883], Costa 1998:77 [ref. 23792], Huber 1999:29 [ref. 23834], Britski et al. 1999:138 [ref. 24147], Castro-Aguirre et al. 1999:216 [ref. 24550], Murphy et al. 1999:289 [ref. 25492], Lazara 2001:269 [ref. 25711], Costa 2002:917 [ref. 26505], Ghedotti & Wiley 2003:1146 [ref. 27019], Costa in Reis et al. 2003:534 [ref. 27061], Costa 2004:2 [ref. 27570], Costa 2004:9 [ref. 27656], Costa 2004:2 [ref. 27874], Hrbek et al. 2004:569 [ref. 27910], Huber 2005:14 [ref. 28394], Suijker & Collier 2006:2 [ref. 28729], Lasso-Alcalá et al. 2006:21 [ref. 28744], Costa 2006:137 [ref. 28875] with 2 subgenera, Costa 2007:175 [ref. 29203], Costa 2007:123 [ref. 29225], Scharpf 2007:11 [ref. 30398], Costa 2008:313 [ref. 29388], Costa 2008:345 [ref. 29385], Costa 2008:351 [ref. 29384], Costa & Brasil 2008:82 [ref. 29541], Costa 2008:85 [ref. 29717], Costa 2008:91 [ref. 29718], Costa & Lazzarotto 2008:129 [ref. 29870], Costa 2008:135 [ref. 29871], Costa & Vono 2009:7 [ref. 30258], Costa & Lanés 2009:92 [ref. 30256], Minckley & Marsh 2009:228 [ref. 31114], Costa 2010:365 [ref. 30690], Costa 2010:79 [ref. 30788], Costa 2010:193 [ref. 30143], Costa & De Luca 2011:289 [ref. 31185], Costa & De Luca 2011:353 [ref. 31193], Bragança & Costa 2011:369 [ref. 31195], Valdesalici et al. 2011:105 [ref. 31381], Schindler & Valdesalici 2011:109 [ref. 31382], Costa 2011:185 [ref. 31358], Costa: 2011:238 [ref. 31655], Valdesalici & Schindler 2011:313 [ref. 31673], Huber 2012:14 [ref. 32947], Vermeulen et al. 2013:187 [ref. 32954], Ponce de León et al. 2014:404 [ref. 33593], Rodriguez-Silva 2015:289 [ref. 33779], Collier 2016:34 [ref. 35018], Loureiro et al. 2018:6 [ref. 36240], Vermeulen & Mejia-Vargas 2020:11 [ref. 37935], Vermeulen & Mejia-Vargas 2020:22 [ref. 37938], Vermeulen 2020:36 [ref. 37941], Huber 2021:4 [ref. 38709], Vermeulen 2022:1 [ref. 39817], Huber et al. 2023:74 [ref. 40176], Vermeulen 2023:100 [ref. 40177]). Current status: Valid as Rivulus Poey 1860. Rivulidae: Rivulinae.

Simpsonichthys Carvalho [A. L. de] 1959:2 Masc. Simpsonichthys boitonei Carvalho 1959. Type by original designation (also monotypic). •Synonym of Cynolebias Steindachner 1876 -- (Parenti 1981:490 [ref. 7066], Costa 1989:183 [ref. 14323], Costa 1990:86 [ref. 16650], Costa 1995:33 [ref. 22097]). •Valid as Simpsonichthys Carvalho 1959 -- (Costa et al. 1996:17 [ref. 22219], Costa & Brasil 1996:93 [ref. 22917], Costa 1996:129 [ref. 25271], Costa & Nielsen 2000:7 [ref. 24442], Costa 2000:8 [ref. 25933], Lazara 2001:269 [ref. 25711], Costa et al. 2001:24 [ref. 25934], Costa 2002:917 [ref. 26505], Costa 2003:31 [ref. 26768], Costa et al. 2003:139 [ref. 26946], Costa in Reis et al. 2003:540 [ref. 27061], Costa 2004:2 [ref. 27569], Costa 2004:2 [ref. 27874], Costa & Brasil 2004:1 [ref. 28012], Huber 2005:15 [ref. 28394], Costa 2005:58 [ref. 28575], Costa & Brasil 2006:42 [ref. 28725], Costa 2006:25 [ref. 28771], Costa 2006:16, 17 [ref. 28620] with subgenera, Costa & Brasil 2006:221 [ref. 28843], Costa & Brasil 2007:57 [ref. 29215], Costa 2007:200 [ref. 29338], Costa 2007:7, 25 [ref. 29445], Costa 2008:155 [ref. 29874], Costa & Brasil 2008:245 [ref. 29968], Costa 2009:149 [ref. 30511], Costa 2010:73 [ref. 30777], Nielsen et al. 2010:51 [ref. 30828], Costa 2010:1996 [ref. 30858], Costa & Lima 2010:205 [ref. 31041], Costa 2012:313 [ref. 31750], Costa 2014:25 [ref. 33309], Ponzetto et al. 2016:[2] [ref. 34144] as paraphyletic, Nielsen et al. 2017:165 [ref. 35304], Loureiro et al. 2018:8 [ref. 36240]). Current status: Valid as Simpsonichthys Carvalho 1959. Rivulidae: Cynolebiinae.

Spectrolebias Costa [W. J. E. M.] & Nielsen [D. T. B.] 1997:258 Masc. Spectrolebias semiocellatus Costa & Nielsen 1997. Type by original designation (also monotypic). •Synonym of Simpsonichthys Carvalho 1959, but a valid subgenus Spectrolebias -- (Costa 2006:17 [ref. 28620], Costa 2007:42 [ref. 29445], Costa & Brasil 2008:245 [ref. 29968], Costa 2010:1997 [ref. 30858]). •Valid as Spectrolebias Costa & Nielsen 1997 -- (Costa 1998:74 [ref. 23792], Lazara 2001:301 [ref. 25711], Costa in Reis et al. 2003:542 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Nielsen 2013:81 [ref. 32696], Nielsen & Brousseau 2013:115 [ref. 32794], Costa 2014:25 [ref. 33309], Nielsen & Pillet 2015:180 [ref. 34009], Ponzetto et al. 2016:[7] [ref. 34144] as paraphyletic, Costa & Amorim 2018:359 [ref. 36019], Loureiro et al. 2018:8 [ref. 36240]). Current status: Valid as Spectrolebias Costa & Nielsen 1997. Rivulidae: Cynolebiinae.

Stenolebias Costa [W. J. E. M.] 1995:70 Masc. Plesiolebias damascenoi Costa 1991. Type by original designation (also monotypic). •Valid as Stenolebias Costa 1995 -- (Costa 1998:81 [ref. 23792], Costa 1998:140 [ref. 23879], Lazara 2001:303 [ref. 25711], Costa in Reis et al. 2003:542 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Stenolebias Costa 1995. Rivulidae: Rivulinae.

Terranatos Taphorn [D. C.] & Thomerson [J. E.] 1978:384 Masc. Austrofundulus dolichopterus Weitzman & Wourms 1967. Type by original designation (also monotypic). •Synonym of Cynolebias Steindachner 1876 -- (Parenti 1981:490 [ref. 7066] as Terranotus). •Valid as Terranatos Taphorn & Thomerson 1978 -- (Costa 1990:86 [ref. 16650], Costa 1995:19 [ref. 22097], Costa 1998:80 [ref. 23792], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:305 [ref. 25711], Costa in Reis et al. 2003:543 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:15 [ref. 28394], Costa 2012:313 [ref. 31750], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Terranatos Taphorn & Thomerson 1978. Rivulidae: Rivulinae.

Titanolebias Alonso [F.], Terán [G. E.], Alanís [W. S. S.], Calviño [P.], Montes [M. M.], García [I. D.], Barneche [J. A.], Almirón [A.], Ciotek [L.], Giorgis [P.] & Casciotta [J.] 2023:11 Masc. Cynolebias elongatus Steindachner 1881. Type by original designation. •Synonym of Austrolebias Costa 1998, but a valid subgenus as described. Current status: Synonym of Austrolebias Costa 1998. Rivulidae: Cynolebiinae.

Trigonectes Myers [G. S.] 1925:371 Masc. Trigonectes strigabundus Myers 1925. Type regarded as by monotypy; possible synonyms mentioned. Also appeared in more detail in Myers 1927:128-129 [ref. 3098]. •Valid as Trigonectes Myers 1925 -- (Parenti 1981:484 [ref. 7066], Costa 1990:137 [ref. 14542], Costa 1990:87 [ref. 16650], Costa 1998:78 [ref. 23792], Huber 1999:40 [ref. 23834], Britski et al. 1999:140 [ref. 24147], Murphy et al. 1999:293 [ref. 25492], Lazara 2001:309 [ref. 25711], Costa in Reis et al. 2003:543 [ref. 27061], Costa 2004:2 [ref. 27874], Huber 2005:14 [ref. 28394], Costa 2014:177 [ref. 35439], Loureiro et al. 2018:5 [ref. 36240]). Current status: Valid as Trigonectes Myers 1925. Rivulidae: Rivulinae.

Vomerivulus (subgenus of Rivulus) Fowler [H. W.] 1944:244 Masc. Rivulus leucurus Fowler 1944. Type by original designation (also monotypic). •Synonym of Rivulus Poey 1860, but a valid subgenus Vomerivulus as described -- (Lazara 2001:269 [ref. 25711]). •Synonym of Rivulus Poey 1860 -- (Parenti 1981:481 [ref. 7066], Costa 1990:85 [ref. 16650], Costa 1991:328 [ref. 20644], Costa 1998:77 [ref. 23792], Costa in Reis et al. 2003:534 [ref. 27061]). •Synonym of Rivulus Poey 1860, subgenus Cynodonichthys Meek 1904 -- (Costa 2006:139 [ref. 28875], Huber 2012:17 [ref. 32947]). •Synonym of Cynodonichthys Meek 1904 -- (Costa 2011:241 [ref. 31655]). Current status: Synonym of Cynodonichthys Meek 1904. Rivulidae: Rivulinae.

Xenurolebias (subgenus of Simpsonichthys) Costa [W. J. E. M.] 2006:16 Masc. Simpsonichthys myersi Carvalho 1971. Type by original designation. •Synonym of Simpsonichthys Carvalho 1959 but a valid subgenus Xenurolebias as described -- (Costa 2007:7 [ref. 29445], Costa 2010:1997 [ref. 30858], Costa 2014:25 [ref. 33309]). •Valid as Xenurolebias Costa 2006 -- (Costa & Amorim 2014:350 [ref. 33343], Ponzetto et al. 2016:[7] [ref. 34144], Loureiro et al. 2018:8 [ref. 36240]). Current status: Valid as Xenurolebias Costa 2006. Rivulidae: Cynolebiinae.