n = 105
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Cynolebias adloffi | Ahl, 1922 | Austrolebias adloffi | Rivulidae | |
| Cynolebias affinis | Amato, 1986 | Austrolebias affinis | Rivulidae | |
| Cynolebias akroa | Nielsen, Martins, Araujo, Lira & Faour, 2018 | Cynolebias akroa | Rivulidae | |
| Cynolebias albipunctatus | Costa & Brasil, 1991 | Cynolebias porosus | Rivulidae | |
| Cynolebias alexandri | Castello & López, 1974 | Austrolebias alexandri | Rivulidae | |
| Cynolebias alternatus | Costa & Brasil, 1994 | Simpsonichthys alternatus | Rivulidae | |
| Cynolebias altus | Costa, 2001 | Cynolebias altus | Rivulidae | |
| Cynolebias antenori | Tulipano, 1973 | Hypsolebias antenori | Rivulidae | |
| Cynolebias aruana | Lazara, 1991 | Plesiolebias aruana | Rivulidae | |
| Cynolebias attenuatus | Costa, 2001 | Cynolebias attenuatus | Rivulidae | |
| Cynolebias aureoguttatus | da Cruz, 1974 | Leptolebias aureoguttatus | Rivulidae | |
| Cynolebias belloti | Steindachner, 1881 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias bellotti | Steindachner, 1881 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias bellottii | Steindachner, 1881 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias belotti | Steindachner, 1881 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias boitonei | (Carvalho, 1959) | Simpsonichthys boitonei | Rivulidae | Lyrefin pearlfish |
| Cynolebias bokermanni | Carvalho & da Cruz, 1987 | Simpsonichthys bokermanni | Rivulidae | |
| Cynolebias brucei | (Vaz-Ferreira & Sierra, 1974) | Campellolebias brucei | Rivulidae | Swordfin killifish |
| Cynolebias carvalhoi | Myers, 1947 | Austrolebias carvalhoi | Rivulidae | |
| Cynolebias chacoensis | Amato, 1986 | Spectrolebias chacoensis | Rivulidae | |
| Cynolebias cheradophilus | Vaz-Ferreira, Sierra de Soriano & Scaglia de Paulete, 1965 | Austrolebias cheradophilus | Rivulidae | |
| Cynolebias cinereus | Amato, 1986 | Austrolebias cinereus | Rivulidae | |
| Cynolebias citrinipinnis | Costa, Lacerda & Tanizaki, 1988 | Leptolebias citrinipinnis | Rivulidae | |
| Cynolebias constanciae | Myers, 1942 | Simpsonichthys constanciae | Rivulidae | Featherfin pearlfish |
| Cynolebias costai | Lazara, 1991 | Spectrolebias costai | Rivulidae | |
| Cynolebias cruzi | Costa, 1988 | Notholebias cruzi | Rivulidae | |
| Cynolebias cyaneus | Amato, 1987 | Austrolebias cyaneus | Rivulidae | |
| Cynolebias duraznensis | García, Scvortzoff & Hernández, 1995 | Austrolebias duraznensis | Rivulidae | |
| Cynolebias elegans | (Ladiges, 1958) | Nematolebias whitei | Rivulidae | Rio pearlfish |
| Cynolebias elegans | Costa, 2017 | Cynolebias elegans | Rivulidae | |
| Cynolebias elongatus | Steindachner, 1881 | Austrolebias elongatus | Rivulidae | |
| Cynolebias flammeus | Costa, 1989 | Hypsolebias flammeus | Rivulidae | |
| Cynolebias flavicaudatus | Costa & Brasil, 1990 | Hypsolebias flavicaudatus | Rivulidae | |
| Cynolebias fractifasciatus | Costa, 1988 | Notholebias fractifasciatus | Rivulidae | |
| Cynolebias fulminantis | Costa & Brasil, 1993 | Hypsolebias fulminantis | Rivulidae | |
| Cynolebias gibberosus | Berg, 1897 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias gibbus | Costa, 2001 | Cynolebias gibbus | Rivulidae | |
| Cynolebias gilbertoi | Costa, 1998 | Cynolebias gilbertoi | Rivulidae | |
| Cynolebias glaucopterus | Costa & Lacerda, 1989 | Plesiolebias glaucopterus | Rivulidae | |
| Cynolebias gorutuba | Costa, 2017 | Cynolebias gorutuba | Rivulidae | |
| Cynolebias griseus | Costa, Lacerda & Brasil, 1990 | Cynolebias griseus | Rivulidae | |
| Cynolebias gymnoventris | Amato, 1986 | Austrolebias gymnoventris | Rivulidae | |
| Cynolebias hellneri | Berkenkamp, 1993 | Hypsolebias hellneri | Rivulidae | |
| Cynolebias heloplites | Huber, 1981 | Hypsolebias antenori | Rivulidae | |
| Cynolebias holmbergi | Berg, 1897 | Austrolebias elongatus | Rivulidae | |
| Cynolebias ibicuiensis | Costa, 1999 | Austrolebias ibicuiensis | Rivulidae | |
| Cynolebias irregularis | Ahl, 1938 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias itapicuruensis | Costa, 2001 | Cynolebias itapicuruensis | Rivulidae | |
| Cynolebias izecksohni | Da Cruz, 1983 | Xenurolebias izecksohni | Rivulidae | |
| Cynolebias jaegari | (Costa & Cheffe, 2002) | Austrolebias jaegari | Rivulidae | |
| Cynolebias lacortei | Lazara, 1991 | Maratecoara lacortei | Rivulidae | |
| Cynolebias ladigesi | Foersch, 1958 | Notholebias minimus | Rivulidae | Barredtail pearlfish |
| Cynolebias leitaoi | da Cruz & Peixoto, 1992 | Mucurilebias leitaoi | Rivulidae | |
| Cynolebias leptocephalus | Costa & Brasil, 1993 | Cynolebias leptocephalus | Rivulidae | |
| Cynolebias luteoflammulatus | Vaz-Ferreira, Sierra de Soriano & Scaglia de Paulete, 1965 | Austrolebias luteoflammulatus | Rivulidae | |
| Cynolebias mabelis | Hoetmer, 1987 | Austrolebias affinis | Rivulidae | |
| Cynolebias maculatus | Steindachner, 1881 | Austrolebias bellottii | Rivulidae | Argentine pearlfish |
| Cynolebias magnificus | Costa & Brasil, 1991 | Hypsolebias magnificus | Rivulidae | |
| Cynolebias marmoratus | (Ladiges, 1934) | Leptolebias marmoratus | Rivulidae | Marbled pearlfish |
| Cynolebias melanoorus | Amato, 1986 | Austrolebias melanoorus | Rivulidae | |
| Cynolebias melanotaenia | Regan, 1912 | Cynopoecilus melanotaenia | Rivulidae | |
| Cynolebias microphthalmus | Costa & Brasil, 1995 | Cynolebias microphthalmus | Rivulidae | |
| Cynolebias minimus | Myers, 1942 | Notholebias minimus | Rivulidae | Barredtail pearlfish |
| Cynolebias monstrosus | Huber, 1995 | Austrolebias monstrosus | Rivulidae | |
| Cynolebias multiradiatus | Costa & Brasil, 1994 | Simpsonichthys multiradiatus | Rivulidae | |
| Cynolebias myersi | Carvalho, 1971 | Xenurolebias myersi | Rivulidae | |
| Cynolebias nanus | da Cruz & Peixoto, 1983 | Leptolebias opalescens | Rivulidae | Opal pearlfish |
| Cynolebias nigripinnis | Regan, 1912 | Austrolebias nigripinnis | Rivulidae | Blackfin pearlfish |
| Cynolebias nigripinnis alexandri | Castello & López, 1974 | Austrolebias alexandri | Rivulidae | |
| Cynolebias nigripinnis nigripinnis | Regan, 1912 | Austrolebias nigripinnis | Rivulidae | Blackfin pearlfish |
| Cynolebias nioni | Berkenkamp, Reichert & Prieto, 1997 | Austrolebias nioni | Rivulidae | |
| Cynolebias nonoiuliensis | Taberner, Fernández-Santos & Castelli, 1974 | Austrolebias nonoiuliensis | Rivulidae | |
| Cynolebias notatus | Costa, Lacerda & Brasil, 1990 | Hypsolebias notatus | Rivulidae | |
| Cynolebias obscurus | Costa, 2014 | Cynolebias obscurus | Rivulidae | |
| Cynolebias ochraceus | Costa, 2014 | Cynolebias ochraceus | Rivulidae | |
| Cynolebias opalescens | Myers, 1942 | Leptolebias opalescens | Rivulidae | Opal pearlfish |
| Cynolebias oticus | Costa, 2014 | Cynolebias oticus | Rivulidae | |
| Cynolebias pantanalensis | Seegers, 1988 | Plesiolebias glaucopterus | Rivulidae | |
| Cynolebias paraguassuensis | Costa, Suzart & Nielsen, 2007 | Cynolebias paraguassuensis | Rivulidae | |
| Cynolebias parietalis | Costa, 2014 | Cynolebias parietalis | Rivulidae | |
| Cynolebias parnaibensis | Costa, Ramos, Alexandre & Ramos, 2010 | Cynolebias parnaibensis | Rivulidae | |
| Cynolebias patriciae | Huber, 1995 | Austrolebias patriciae | Rivulidae | |
| Cynolebias perforatus | Costa & Brasil, 1991 | Cynolebias perforatus | Rivulidae | |
| Cynolebias periodicus | Costa, 1999 | Austrolebias periodicus | Rivulidae | |
| Cynolebias porosus | Steindachner, 1876 | Cynolebias porosus | Rivulidae | |
| Cynolebias prognathus | Amato, 1986 | Austrolebias prognathus | Rivulidae | |
| Cynolebias rectiventer | Costa, 2014 | Cynolebias rectiventer | Rivulidae | |
| Cynolebias reicherti | Loureiro & García, 2004 | Austrolebias reicherti | Rivulidae | |
| Cynolebias robustus | Günther, 1883 | Austrolebias robustus | Rivulidae | |
| Cynolebias roseus | Costa, 2014 | Cynolebias roseus | Rivulidae | |
| Cynolebias santanae | Shibatta & Garavello, 1992 | Simpsonichthys santanae | Rivulidae | |
| Cynolebias spinifer | Ahl, 1934 | Austrolebias elongatus | Rivulidae | |
| Cynolebias splendens | Myers, 1942 | Leptolebias splendens | Rivulidae | Splendid pearlfish |
| Cynolebias stellatus | Costa & Brasil, 1994 | Simpsonichthys stellatus | Rivulidae | |
| Cynolebias trilineatus | Costa & Brasil, 1994 | Simpsonichthys trilineatus | Rivulidae | |
| Cynolebias vandenbergi | Huber, 1995 | Austrolebias vandenbergorum | Rivulidae | |
| Cynolebias vandenbergorum | Huber, 1995 | Austrolebias vandenbergorum | Rivulidae | |
| Cynolebias vazabarrisensis | Costa, 2001 | Cynolebias vazabarrisensis | Rivulidae | |
| Cynolebias vazferreirai | Berkenkamp, Etzel, Reichert & Salvia, 1994 | Austrolebias vazferreirai | Rivulidae | |
| Cynolebias viarius | Vaz-Ferreira, Sierra de Soriano & Scaglia de Paulete, 1965 | Austrolebias viarius | Rivulidae | |
| Cynolebias whitei | Myers, 1942 | Nematolebias whitei | Rivulidae | Rio pearlfish |
| Cynolebias wolterstorffi | Ahl, 1924 | Austrolebias wolterstorffi | Rivulidae | |
| Cynolebias xavantei | Costa, Lacerda & Tanizaki, 1988 | Plesiolebias xavantei | Rivulidae | |
| Cynolebias zingiberinus | Myers, 1942 | Leptolebias marmoratus | Rivulidae | Marbled pearlfish |
| Cynolebias zonatus | Costa & Brasil, 1990 | Simpsonichthys zonatus | Rivulidae |