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 Acestrorhamphidae: [ 85 ] records

Acestrorhamphus Eigenmann [C. H.] & Kennedy [C. H.] 1903:527 Masc. Hydrocyon hepsetus Cuvier 1829. Type by monotypy. Also appeared in Eigenmann 1903 (Dec.):146 [ref. 1218]. •Synonym of Oligosarcus Günther 1864, but a valid subgenus Acestrorhamphus -- (Géry 1977:326 [ref. 1597]). •Synonym of Oligosarcus Günther 1964 -- (Braga 1994:15 [ref. 27878], Menezes in Reis et al. 2003:151 [ref. 27061]). Current status: Synonym of Oligosarcus Günther 1864. Acestrorhamphidae: Acestrorhamphinae.

Aequidens (subgenus of Tetragonopterus) Steindachner [F.] 1915:34 [48] Masc. Tetragonopterus (Aequidens) fasslii Steindachner 1915. Type by monotypy. Objectively invalid; preoccupied by Aequidens Eigenmann & Bray 1894 in fishes, replaced by Evenichthys Whitley 1935. "Misprint for Astyanax" written in separate at the California Academy of Sciences, and this plus style (see new subgenus Pseudepapterus) suggests that the name was in error and not intended as an original description. 1°Homonym. Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Andromakhe Terán [G. E.], Benitez [M. F.] & Mirande [J. M.] 2020:10 Fem. Astyanax latens Mirande, Aguilera & Azpelicueta 2004. Type by original designation. •Valid as Andromakhe Terán, Benitez & Mirande 2020 -- (Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae). Current status: Valid as Andromakhe Terán, Benitez & Mirande 2020. Acestrorhamphidae: Acestrorhamphinae.

Anoptichthys Hubbs [C. L.] & Innes [W. T.] 1936:3 Masc. Anoptichthys jordani Hubbs & Innes 1936. Type by original designation (also monotypic). •Synonym of Astyanax Baird & Girard 1854 -- (see Géry 1977:418 [ref. 1597], Buckup in Reis et al. 2003:107 [ref. 27061], Terán et al. 2020:9 [ref. 37440], Espinasa et al. 2020:1 [ref. 40046], Miranda-Gamboa et al. 2023:95 [ref. 40047]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Aphyodite Eigenmann [C. H.] 1912:255, 314 Fem. Aphyodite grammica Eigenmann 1912. Type by original designation (also monotypic). •Valid as Aphyodite Eigenmann 1912 -- (Géry 1977:586 [ref. 1597], Malabarba 1998:230 [ref. 23844], Malabarba in Reis et al. 2003:107 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Aphyoditeinae, Mirande 2010:528 [ref. 31006], Sarmiento et al. 2014:183 [ref. 35004], Esguícero & Castro 2017:756 [ref. 35694]). •Synonym of Hemigrammus Gill 1858 -- (Melo et al. 2024:23 [ref. 41541] in Pristellinae). Current status: Synonym of Hemigrammus Gill 1858. Acestrorhamphidae: Pristellinae.

Apodastyanax Fowler [H. W.] 1911:422 Masc. Apodastyanax stewardsoni Fowler 1911. Type by original designation (also monotypic). •Synonym of Ctenobrycon Eigenmann 1908 -- (Taphorn 1992:176 [ref. 23654], Benine & Cassati in Reis et al. 2003:126 [ref. 27061]). Current status: Synonym of Ctenobrycon Eigenmann 1908. Acestrorhamphidae: Acestrorhamphinae.

Astyanacinus Eigenmann [C. H.] 1907:769 Masc. Tetragonopterus moorii Boulenger 1892. Type by original designation (also monotypic). Spelled Astycinus by Jordan 1920:522 [ref. 4905] and Astyacinus by Neave 1939:337 [ref. 12569]. •Synonym of Astyanax Baird & Girard 1854 -- (Ruiz-C. et al. 2018:3 [ref. 35787], Terán et al. 2020:9 [ref. 37440]). •Valid as Astyanacinus Eigenmann 1907 -- (Géry 1977:415 [ref. 1597], Britski et al. 1999:36 [ref. 24147], Lima in Reis et al. 2003:107 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Bertaco et al. 2010:265 [ref. 30864] but redefined, Mirande 2010:545 [ref. 31006], Mirande et al. 2011:13 [ref. 31465], Torres-Mejia et al. 2012:501 [ref. 32312], Dagosta 2024:92 [ref. 40817], Melo et al. 2024:28 [ref. 41541] in Grundulinae). Current status: Valid as Astyanacinus Eigenmann 1907. Acestrorhamphidae: Grundulinae.

Astyanax Baird [S. F.] & Girard [C. F.] 1854:26 Masc. Astyanax argentatus Baird & Girard 1854. Type by monotypy. •Valid as Astyanax Baird & Girard 1854 -- (Géry 1977:418 [ref. 1597], Weitzman & Vari 1986 [ref. 5979], Géry et al. 1988:9 [ref. 6408], Malabarba 1989:128 [ref. 14217], Taphorn 1992:110 [ref. 23654], Géry et al. 1996 [ref. 22155], Schmitter-Soto 1998:349 [ref. 23326], Garutti 1998:121 [ref. 23797], Britski et al. 1999:37 [ref. 24147], Zarske & Géry 1999:203 [ref. 24913], Garutti & Britski 2000:84 [ref. 24769], Espanasa et al. 2001:339 [ref. 25704], de Melo 2001:3 [ref. 27458], Zarske & Géry 2002:17 [ref. 26554], Benine 2002:292 [ref. 26541], Azpelicueta et al. 2002:243 [ref. 26608], Buckup in Reis et al. 2003:107 [ref. 27061], Casciotta et al. 2003:329 [ref. 27401], Garutti 2003:2 [ref. 27817], Ferreira Haluch & Abilhoa 2005:383 [ref. 28386], Bertaco & Lucinda 2005:392 [ref. 28387], Bertaco & Lucena 2006:53 [ref. 28628], Mirande et al. 2006:9 [ref. 28757], Mirande et al. 2006:58 [ref. 28784], Ruiz-C. & Román-Valenca 2006:50 [ref. 28891], Scharpf 2006:13 [ref. 30386], Bertaco & Garutti 2007:25 [ref. 29172], Abilhoa & Duboc 2007:43 [ref. 29285], Mirande et al. 2007:38 [ref. 29333], Schmitter-Soto et al. 2008:409 [ref. 29633], Zanata & Camelier 2008:28 [ref. 29887], Bussing 2009:1361 [ref. 30066], Azpelicueta & Loureiro 2009:3 [ref. 30196], Marinho & Lima 2009:169 [ref. 30251], Zanata & Camelier 2009:175 [ref. 30252], Vera Alcaraz et al. 2009:185 [ref. 30253], Mirande 2009:7 [ref. 30267] in Characidae, Astyanax clade, Garutti & Venere 2009:377 [ref. 30493], Garutti & Langeani 2009:371 [ref. 30985], Pavanelli & Oliveira 2009:569 [ref. 30986], Minckley & Marsh 2009:103 [ref. 31114], Bertaco & Lucena 2010:7 [ref. 30750], Almirón et al. 2010:60 [ref. 30813], Bertaco et al. 2010:265 [ref. 30864], Mirande 2010:514 [ref. 31006], Garavello & Sampaio 2010:847 [ref. 31053], Soneira et al. 2010:779 [ref. 31078], Ruiz-C. et al. 2011:48 [ref. 31365], Marinho & Birindelli 2013:45 [ref. 32569], Marinho & Ohara 2013:475 [ref. 32713], Lucena et al. 2013:226 [ref. 32870], Lucena et al. 2013:537 [ref. 32914], Camelier & Zanata 2014:xx [ref. 33136], Bertaco 2014:492 [ref. 33320], Ingenito & Duboc 2014:281 [ref. 33374], Sarmiento et al. 2014:183 [ref. 35004], Mirande & Koerber 2015:1 [ref. 33698], Marinho et al. 2015:568 [ref. 33708], Bertaco & Vigo 2015:265 [ref. 33857], Freitas et al. 2015:183 [ref. 34055], Lucena & Soares 2016:101 [ref. 34169], Schmitter-Soto 2016:101 [ref. 34424], Bertaco et al. 2016:412 [ref. 34561], Zanata et al. 2017:491 [ref. 35145], Terán et al. 2017:1 [ref. 35358], Schmitter-Soto 2017:1331 [ref. 35414], da Graça et al. 2017:1 [ref. 35556], Oliveira et al. 2017:173 [ref. 35587], Lucena et al. 2017:1 [ref. 35607], Ruiz-C. et al. 2018:1 [ref. 35787], Angulo et al. 2018:[1] [ref. 35879], Zanata et al. 2018:471 [ref. 35984], Silva et al. 2019:110 [ref. 36458], Burger et al. 2019:369 [ref. 36718], Zanata et al. 2019:1 [ref. 37072], Terán et al. 2020:9 [ref. 37440], Espinasa et al. 2020:1 [ref. 40046], Salgado 2021:1 [ref. 38719], Salgado 2021:1 [ref. 38720], Salgado 2021:133 [ref. 38807], Dagosta & Marinho 2022:1 [ref. 39122], Ruiz-C. et al. 2023:116 [ref. 39815], Miranda-Gamboa et al. 2023:95 [ref. 40047], Ferreira et al. 2023:[1] [ref. 40133], Ruiz-C. et al. 2023:195 [ref. 40361], Arroyave et al. 2025:10 [ref. 42261]). Current status: Valid as Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Axelrodia Géry [J.] 1965:31 Fem. Axelrodia fowleri Géry 1965. Type by original designation (also monotypic). See also Géry 1966:111 [ref. 1587]. •Valid as Axelrodia Géry 1965 -- (Géry 1977:602 [ref. 1597], Lima in Reis et al. 2003:113 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Aphyoditeinae, Mirande 2010:528 [ref. 31006], Esguícero & Mendonça 2023:444 [ref. 40521], Melo et al. 2024:21 [ref. 41541] in Megalamphodinae). Current status: Valid as Axelrodia Géry 1965. Acestrorhamphidae: Megalamphodinae.

Bario Myers [G. S.] 1940:35 Masc. Tetragonopterus steindachneri Eigenmann 1893. Type by being a replacement name. Replacement for Entomolepis Eigenmann 1917, preoccupied by Entomolepis Brady 1889 in Crustacea. Treated as masculine (Art. 30.2.4). •Valid as Bario Myers 1940 -- (Géry 1977:454 [ref. 1597], Zarske & Géry 2002:17 [ref. 26554], Benine in Reis et al. 2003:114 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Bertaco et al. 2011:57 [ref. 31234], Sarmiento et al. 2014:184 [ref. 35004], Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Bario Myers 1940. Acestrorhamphidae: Thayeriinae.

Bertoniolus Fowler [H. W.] 1918:141 Masc. Bertoniolus paraguayensis Fowler 1918. Type by original designation (also monotypic). •Synonym of Astyanax Baird & Girard 1854 -- (see Böhlke 1984:52 [ref. 13621], Buckup in Reis et al. 2003:107 [ref. 27061], Terán et al. 2020:9 [ref. 37440]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Brachychalcinus Boulenger [G. A.] 1892:11 Masc. Brachychalcinus retrospina Boulenger 1892. Type by monotypy. •Valid as Brachychalcinus Boulenger 1892 -- (Géry 1977:367 [ref. 1597], Reis 1989:58 [ref. 14219], Britski et al. 1999:56 [ref. 24147], Reis in Reis et al. 2003:209 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Sarmiento et al. 2014:184 [ref. 35004], Garcia-Ayala et al. 2017:564 [ref. 35695], Garcia-Ayala & Benine 2020:1 [ref. 37401], Garcia-Ayala et al. 2024:1 [ref. 40855], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Brachychalcinus Boulenger 1892. Acestrorhamphidae: Stethaprioninae.

Bramocharax Gill [T. N.] in Gill & Bransford 1877:189 Masc. Bramocharax bransfordii Gill 1877. Type by monotypy. Spelling of subfamily "Bramocharax clade" changed to Acestrorhamphinae on 22 Feb. 2014. •Valid as Bramocharax Gill 1877 -- (Géry 1977:322 [ref. 1597], Contreras-Balderas & Rivera-Teillery 1985:15 [ref. 19552], Menezes in Reis et al. 2003:114 [ref. 27061], Scharpf 2006:14 [ref. 30386], Mirande 2010:496 [ref. 31006]). •Synonym of Astyanax Baird & Girard 1854 -- (Schmitter-Soto 2016:120 [ref. 34424], Schmitter-Soto 2017:1373 [ref. 35414], Terán et al. 2020:9 [ref. 37440]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Brittanichthys Géry [J.] 1965:13 Masc. Brittanichthys axelrodi Géry 1965. Type by original designation. •Valid as Brittanichthys Géry 1965 -- (Géry 1977:591 [ref. 1597], Malabarba 1998:232 [ref. 23844], Malabarba & Weitzman 1999:411 [ref. 24417], Malabarba in Reis et al. 2003:114 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Mirande 2010:545 [ref. 31006], Melo et al. 2024:21 [ref. 41541] in Megalamphodinae). Current status: Valid as Brittanichthys Géry 1965. Acestrorhamphidae: Megalamphodinae.

Bryconella Géry [J.] 1965:27 Fem. Bryconella haraldi Géry 1965. Type by original designation (also monotypic). •Valid as Bryconella Géry 1865 -- (Géry 1977:511 [ref. 1597], Langeani in Reis et al. 2003:119 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Mirande 2010:545 [ref. 31006], Sarmiento et al. 2014:184 [ref. 35004], Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Bryconella Géry 1965. Acestrorhamphidae: Thayeriinae.

Buritia Brant [V.] 1974:148 Fem. Buritia cisalpinoi Brant 1974. Type by original designation (also monotypic). Objectively invalid; preoccupied by Buritia Young 1952 in Hemiptera (see Whitley 1976:47 [ref. 4735]); replaced by and objective synonym of Orthospinus Reis 1989. •Synonym of Orthospinus Reis 1989 -- (Reis in Reis et al. 2003:209 [ref. 27061]). 1°Homonym. Current status: Synonym of Orthospinus Reis 1989. Acestrorhamphidae: Stethaprioninae.

Carlana Strand [E.] 1928:54 Fem. Cheirodon eigenmanni Meek 1912. Type by being a replacement name. Replacement for Carlia Meek 1914, preoccupied by Carlia Gray 1845 (Catalogue of the specimens of lizards in the collection of the British Museum, p.271). •Valid as Carlana Strand 1928 -- (Fink & Weitzman 1974:25 [ref. 7132], Géry 1977:543 [ref. 1597], Cardoso in Reis et al. 2003:213 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Rhoadsiinae, Mirande 2010:499 [ref. 31006], Oliveira et al. 2011:14 [ref. 31685] in Rhoadsinae, Melo et al. 2024:28 [ref. 41541] in Rhoadsiinae). Current status: Valid as Carlana Strand 1928. Acestrorhamphidae: Rhoadsiinae.

Carlia Meek [S. E.] 1914:108 Fem. Cheirodon eigenmanni Meek 1912. Type by original designation (also monotypic). Objectively invalid; preoccupied by Carlia Gray 1845 in Lizards; replaced by Carlana Strand 1928. •Objective synonym of Carlana Strand 1928 -- (Fink & Weitzman 1974:25 [ref. 7132], Cardoso in Reis et al. 2003:213 [ref. 27061]). 1°Homonym. Current status: Synonym of Carlana Strand 1928. Acestrorhamphidae: Rhoadsiinae.

Catemaco (subgenus of Bramocharax) Contreras-Balderas [S.] & Rivera-Teillery [R.] 1985:9 Masc. Bramocharax caballeroi Contreras-Balderas & Rivera-Teillery 1985. Type by original designation (also monotypic). Treated as masculine, Art. 30.2.4. •Synonym of Bramocharax Gill 1877 -- (Menezes in Reis et al. 2003:114 [ref. 27061]). •Synonym of Astyanax Baird & Girard 1854 -- (Terán et al. 2020:9 [ref. 37440]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Coptobrycon Géry [J.] 1966:226 Masc. Hasemania bilineata Ellis 1911. Type by original designation (also monotypic). •Valid as Coptobrycon Géry 1966 -- (Géry 1977:402 [ref. 1597], Lima in Reis et al. 2003:121 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Gymnocharacinae, Mirande 2010:521 [ref. 31006], Langeani & Serra 2010:728 [ref. 31075], Melo et al. 2024:17 [ref. 41541] in Stygichthyinae). Current status: Valid as Coptobrycon Géry 1966. Acestrorhamphidae: Stygichthyinae.

Ctenobrycon Eigenmann [C. H.] 1908:94 Masc. Tetragonopterus hauxwellianus Cope 1870. Type by original designation (also monotypic). •Valid as Ctenobrycon Eigenmann 1908 -- (Géry 1977:431 [ref. 1597], Taphorn 1992:176 [ref. 23654], Britski et al. 1999:36 [ref. 24147], Benine & Cassati in Reis et al. 2003:126 [ref. 27061], Mirande 2009:7 [ref. 30267] and Mirande 2010:514 [ref. 31006] in Characidae, Astyanax clade with question, Sarmiento et al. 2014:184 [ref. 35004], Bertaco et al. 2016:413 [ref. 34561], Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae). Current status: Valid as Ctenobrycon Eigenmann 1908. Acestrorhamphidae: Acestrorhamphinae.

Ctenocharax Regan [C. T.] 1907:403 Masc. Ctenocharax bogotensis Regan 1907. Type by monotypy. See Malabarba 1998:229 [ref. 23844]. If a synonym of Grundulus Eigenmann 1915, then Ctenocharax bogotensis is a secondary homonym of Poecilia bogotensis Humboldt 1821 in Grundulus. •Synonym of Grundulus Valenciennes 1846 -- (Román-Valencia et al. 2003:51 [ref. 27035], Malabarba in Reis et al. 2003:128 [ref. 27061]). Current status: Synonym of Grundulus Valenciennes 1846. Acestrorhamphidae: Grundulinae.

Dermatocheir Durbin [M. L.] 1909:55 Fem. Dermatocheir catablepta Durbin 1909. Type by original designation (also monotypic). Based on a larval specimen. •Synonym of Hyphessobrycon Durbin 1908 -- (Géry 1977:462 [ref. 1597] based on placement of type species, Lima & Malabarba in Reis et al. 2003:134 [ref. 27061]). •Genus inquirenda -- (Toledo-Piza et al. 2024:287 [ref. 40817]). Current status: Uncertain. Acestrorhamphidae.

Deuterodon Eigenmann [C. H.] in Eigenmann, McAtee & Ward 1907:140 Masc. Deuterodon iguape Eigenmann 1907. Type by monotypy. •Valid as Deuterodon Eigenmann 1907 -- (Géry 1977:519 [ref. 1597], Géry et al. 1988:10 [ref. 6408], Lucena & Lucena 1992:126 [ref. 21970], Britski et al. 1999:36 [ref. 24147], Lucena & Lucena 2002:117 [ref. 26205], Lucena et al. in Reis et al. 2003:127 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, de Lucena & de Lucena 2013:598 [ref. 32570], Sarmiento et al. 2014:184 [ref. 35004], Bertaco et al. 2016:413 [ref. 34561], Silva et al. 2017:[1] [ref. 35234], Terán et al. 2020:7 [ref. 37440], Melo et al. 2024:17 [ref. 41541] in Stygichthyinae). Current status: Valid as Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Dinotopterygium Frainer [G.], Carvalho [F. R.], Bertaco [V. A.] & Malabarba [L. R.] 2021:3 Neut. Dinotopterygium uniodon Frainer, Carvalho, Bertaco & Malabarba 2021. Type by original designation. •Valid as Dinotopterygium Frainer, Carvalho, Bertaco & Malabarba 2021 -- (Melo et al. 2024:25 [ref. 41541] in Hyphessobryconinae). Current status: Valid as Dinotopterygium Frainer, Carvalho, Bertaco & Malabarba 2021. Acestrorhamphidae: Hyphessobryconinae.

Distoechus Gomes [A. L.] 1947:12 Masc. Distoechus stigmaturus Gomes 1947. Type by original designation (also monotypic). •Synonym of Deuterodon Eigenmann 1907 -- (Böhlke 1952:793 [ref. 13618], Lucena & Lucena 1992:147 [ref. 21970], see Malabarba 1998:232 [ref. 23844], Lucena & Lucena 2002:124 [ref. 26205], Lucena et al. in Reis et al. 2003:127 [ref. 27061]). Current status: Synonym of Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Ectrepopterus (subgenus of Megalamphodus) Fowler [H. W.] 1943:313 Masc. Megalamphodus uruguayensis Fowler 1943. Type by original designation (also monotypic). •Synonym of Megalamphodus Eigenmann 1915 -- (Taphorn 1992:251 [ref. 23654]). •Synonym of Hyphessobrycon Durbin 1908 -- (see Malabarba 1998:231 [ref. 23844], Lima & Malabarba in Reis et al. 2003:134 [ref. 27061]). •Valid as Ectrepopterus Fowler 1943 -- (Malabarba et al. 2012:47, 49 [ref. 31810], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Ectrepopterus Fowler 1943. Acestrorhamphidae: Stethaprioninae.

Entomolepis Eigenmann [C. H.] 1917:63 Fem. Tetragonopterus steindachneri Eigenmann 1893. Type by original designation (also monotypic). Objectively invalid; preoccupied by Entomolepis Brady 1889 in Crustacea; replaced by Bario Myers 1940. •Synonym of Bario Myers 1940 -- (Benine in Reis et al. 2003:114 [ref. 27061]). 1°Homonym. Current status: Synonym of Bario Myers 1940. Acestrorhamphidae: Thayeriinae.

Ephippicharax Fowler [H. W.] 1913:51 Masc. Tetragonopterus compressus Günther 1864. Type by being a replacement name. Replacement for Fowlerina Eigenmann 1908, preoccupied by Fowlerina Pelseneer 1906 in Mollusca. •Synonym of Poptella Eigenmann 1908 -- (Géry 1977:367 [ref. 1597], Reis 1989:18 [ref. 14219], Taphorn 1992:302 [ref. 23654], Reis in Reis et al. 2003:210 [ref. 27061]). Current status: Synonym of Poptella Eigenmann 1908. Acestrorhamphidae: Stethaprioninae.

Erythrocharax Netto-Ferreira [A. L.], Birindelli [J. L. O.], Sousa [L. M. de], Mariguela [T. C.] & Oliveira [C.] 2013:2 Masc. Erythrocharax altipinnis Netto-Ferreira, Birindelli, Sousa, Mariguela & Oliveira 2013. Type by original designation (also monotypic). •Valid as Erythrocharax Netto-Ferreira, Birindelli, Sousa, Mariguela & Oliveira 2013 -- (Frainer et al. 2021:11 [ref. 38777], Melo et al. 2024:25 [ref. 41541] in Hyphessobryconinae). Current status: Valid as Erythrocharax Netto-Ferreira, Birindelli, Sousa, Mariguela & Oliveira 2013. Acestrorhamphidae: Hyphessobryconinae.

Evenichthys Whitley [G. P.] 1935:250 Masc. Tetragonopterus (Aequidens) fasslii Steindachner 1915. Type by being a replacement name. Replacement for Aequidens Steindachner 1915, preoccupied by Aequidens Eigenmann & Bray 1894. Misspelled Evemichthys in Zoological Record for 1935. Written in Stanford reprint of Steindachner 1915: "Aequidens Stdr. 1915 was a lapsus calami for Astyanax." •Synonym of Astyanax Baird & Girard 1854 -- (Buckup in Reis et al. 2003:107 [ref. 27061]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Fowlerina Eigenmann [C. H.] 1907:771 Fem. Tetragonopterus compressus Günther 1864. Type by monotypy. Probably appeared first in Eigenmann, McAtee & Ward 1907:153 [ref. 1261] with 2 included species. Objectively invalid; preoccupied by Fowlerina Pelseneer 1906 in Mollusca, replaced by Ephippicharax Fowler 1913. •In the synonymy of Poptella Eigenmann 1908 -- (Reis 1989:18 [ref. 14219], Taphorn 1992:302 [ref. 23654], Reis in Reis et al. 2003:210 [ref. 27061]). 1°Homonym. Current status: Synonym of Poptella Eigenmann 1908. Acestrorhamphidae: Stethaprioninae.

Genycharax Eigenmann [C. H.] 1912:22 Masc. Genycharax tarpon Eigenmann 1912. Type by original designation (also monotypic). •Valid as Genycharax Eigenmann 1912 -- (Géry 1977:531 [ref. 1597], Pavanelli in Reis et al. 2003:128 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Mirande 2010:545 [ref. 31006]). •Synonym of Astyanax Baird & Girard 1854 -- (Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Grundulus Valenciennes [A.] in Cuvier & Valenciennes 1846:216 Masc. Poecilia bogotensis Humboldt 1821. Type by monotypy. •Valid as Grundulus Valenciennes 1846 -- (Géry 1977:607 [ref. 1597], Malabarba 1998:228 [ref. 23844], Román-Valencia et al. 2003:52 [ref. 27035], Malabarba in Reis et al. 2003:128 [ref. 27061], Román-Valencia et al. 2005:537 [ref. 28433], Mirande 2009:7 [ref. 30267] in Characidae, Gymnocharacinae, Román-Valencia et al. 2010:107 [ref. 30946] in Characidae incertae sedis, Langeani & Serra 2010:732 [ref. 31075], Melo et al. 2024:28 [ref. 41541] in Grundulinae). Current status: Valid as Grundulus Valenciennes 1846. Acestrorhamphidae: Grundulinae.

Gymnocorymbus Eigenmann [C. H.] 1908:93 Masc. Gymnocorymbus thayeri Eigenmann 1908. Type by original designation (also monotypic). •Valid as Gymnocorymbus Eigenmann 1908 -- (Géry 1977:451 [ref. 1597], Taphorn 1992:194 [ref. 23654], Britski et al. 1999:32 [ref. 24147], Zarske & Géry 2002:17 [ref. 26554], Benine 2002:292 [ref. 26541], Benine in Reis et al. 2003:128 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Kottelat 2013:215 [ref. 32989] in Characidae, Sarmiento et al. 2014:184 [ref. 35004], Benine et al. 2015:1, 10 [ref. 33792], Melo et al. 2024:23 [ref. 41541] in Pristellinae). Current status: Valid as Gymnocorymbus Eigenmann 1908. Acestrorhamphidae: Pristellinae.

Gymnotichthys Fernández-Yépez [A.] 1950:9 Masc. Gymnotichthys hildae Fernández-Yépez 1950. Type by original designation (also monotypic). Mentioned in Gymnotichthys -- (Géry 1977:451 [ref. 1597]). •Valid as Gymnotichthys Fernández-Yépez 1950 -- (Pavanelli in Reis et al. 2003:128 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Mirande 2010:546 [ref. 31006]). •Synonym of Moenkhausia Eigenmann 1903 -- (Marinho & Langeani 2016:340 [ref. 34416]). Current status: Synonym of Moenkhausia Eigenmann 1903. Acestrorhamphidae: Stichonodontinae.

Hasemania Ellis [M. D.] 1911:148 Fem. Hasemania melanura Ellis 1911. Type by original designation. •Valid as Hasemania Ellis 1911 -- (Géry 1977:518 [ref. 1597], Lima & Gerhard 2001:111 [ref. 25355], Pavanelli in Reis et al. 2003:128 [ref. 27061], Bertaco & Malabarba 2007:350 [ref. 29142], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Zanata & Serra 2010:21 [ref. 30751], Bertaco & Carvalho 2010:27 [ref. 30752], Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Sarmiento et al. 2014:184 [ref. 35004], Serra & Langeani 2015:479 [ref. 33944], Melo et al. 2024:22 [ref. 41541] in Stichonodontinae, Teixeira et al. 2025:131 [ref. 42053]). Current status: Valid as Hasemania Ellis 1911. Acestrorhamphidae: Stichonodontinae.

Hemigrammus (subgenus of Poecilurichthys) Gill [T. N.] 1858:416, 420 Masc. Poecilurichthys (Hemigrammus) unilineatus Gill 1858. Type by monotypy in subgenus. See Benine et al. 2004:72 [ref. 27502]. •Valid as Hemigrammus Gill 1858 -- (Géry 1977:490 [ref. 1597], Taphorn 1992:200 [ref. 23654], Britski et al. 1999:39 [ref. 24147]. Lima & Oyakawa in Reis et al. 2003:130 [ref. 27061], Bertaco & Carvalho 2005:141 [ref. 28675], Zarske et al. 2006:23 [ref. 28749], Zarske & Géry 2007:6 [ref. 29231], Benine & Lopes 2007:53 [ref. 29305], Marinho et al.2008:52 [ref. 29547], Britski & Lima 2008:565 [ref. 29801], Lima et al. 2009:153 [ref. 30248], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Lima & Sousa 2009:153 [ref. 30278], Marinho & Langeani 2010:887 [ref. 30927], Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Mendonça & Wosiacki 2011:211 [ref. 31415], Zarske 2011:3 [ref. 31376], Jerep et al. 2011:545 [ref. 31705]. Marinho et al. 2014:257 [ref. 33372], Ota et al. 2014:265 [ref. 33373], Sarmiento et al. 2014:46, 184 [ref. 35004], Ota et al. 2015:218 [ref. 33748], Lima et al. 2016:123 [ref. 34590], Reia & Benine 2019:407 [ref. 36527], Ota et al. 2019:335 [ref. 36619], Albornoz-Garzón et al. 2019:932 [ref. 36872], Lima et al. 2020:1 [ref. 37339], Melo et al. 2024:23 [ref. 41541] in Pristellinae). Current status: Valid as Hemigrammus Gill 1858. Acestrorhamphidae: Pristellinae.

Hollandichthys Eigenmann [C. H.] 1909:257 Masc. Tetragonopterus multifasciatus Eigenmann & Norris 1900. Type by monotypy. Type species mentioned on p. 374. Also published in Eigenmann 1010:432 [ref. 1224] with type. •Synonym of Pseudochalceus Kner 1863, but a valid subgenus -- (Zarske & Géry 2006:39 [ref. 28750]). •Valid as Hollandichthys Eigenmann 1909 -- (Weitzman et al. 1986:343 [ref. 5984], Oyakawa in Reis et al. 2003:134 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Bramocharax clade, Román-Valencia et al. 2010:99 [ref. 30945] as Hollandicthys, Thomaz et al. 2010:1347 [ref. 31210], Mirande 2010:496 [ref. 31006] in Characidae, Pseudochalceus clade, Malabarba et al. 2012:48 [ref. 31810], Bertaco & Malabarba 2013:767 [ref. 33026], Bertaco et al. 2016:413 [ref. 34561], Bertaco 2022:102 [ref. 40102], Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Hollandichthys Eigenmann 1909. Acestrorhamphidae: Thayeriinae.

Holopristis Eigenmann [C. H.] 1903:145 Fem. Tetragonopterus ocellifer Steindachner 1882. Type by original designation (also monotypic). Unjustifiably emended or misspelled Holopristes by Eigenmann & Ogle 1907:11 [ref. 1266]. •Synonym of Hemigrammus Gill 1858 -- (Taphorn 1992:200 [ref. 23654], Lima & Oyakawa in Reis et al. 2003:130 [ref. 27061]). •Valid as Holopristis Eigenmann 1903 -- (Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Holopristis Eigenmann 1903. Acestrorhamphidae: Thayeriinae.

Hyphessobrycon (subgenus of Hemigrammus) Durbin [M. L.] in Eigenmann 1908:100 Masc. Hemigrammus compressus Meek 1904. Type by original designation (also monotypic). Genus credited to Durbin based on footnote on p. 99. •Valid as Hyphessobrycon Durbin 1908 -- (Géry 1977:458 [ref. 1597], Malabarba 1989:134 [ref. 14217], Taphorn 1992:239 [ref. 23654], Costa & Géry 1994 [ref. 21308], Weitzman & Palmer 1997:209 [ref. 22743], Britski et al. 1999:41 [ref. 24147], Lima & Gerhard 2001:111 [ref. 25355], Moreira et al. 2002:73 [ref. 26068], Lima & Malabarba in Reis et al. 2003:134 [ref. 27061], Almirón et al. 2004:673 [ref. 27987], Bertaco & Malabarba 2005:83 [ref. 28297], Zarske et al. 2006:25 [ref. 28749], Zarske & Géry 2006:43 [ref. 28750], Carvalho & Bertaco 2006:301 [ref. 28812], Miquelarena & López 2006:817 [ref. 29070], Almirón et al. 2006:889 [ref. 29163], Scharpf 2006:14 [ref. 30386], Carvalo et al. 2008:39 [ref. 29435], Benine & Lopes 2008:61 [ref. 29589], Zarske 2008:5 [ref. 29615], García-Alzate et al. 2008:142 [ref. 29919], García-Alzate & Román-Valencia 2008:12 [ref. 30008], Mirande 2009:7 [ref. 30267] in Characidae, in Hemigrammus clade, Hein 2009:2 [ref. 30362], García-Alzate et al. 2010:55 [ref. 30716], Miquelarena & López 2010:1 [ref. 30749], García-Alzate et al. 2010:801 [ref. 30824], Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, García-Alzate et al. 2010:444 [ref. 31066], Zanata & Camelier 2010:771 [ref. 31077], García-Alzate et al. 2011:709 [ref. 31266], Zarske 2011:9 [ref. 31376], Malabarba et al. 2012:48 [ref. 31810], García-Alzate et al. 2013:189 [ref. 32440], Ingenito et al. 2013: 33 [ref. 32568], García-Alzate et al. 2013:859 [ref. 32692], Carvalho & Langeani 2013:525 [ref. 32913], Dagosta et al. 2014:365 [ref. 33382], Teixeira et al. 2014:612 [ref. 33097], Carvalho et al. 2014:247 [ref. 33371], Lima et al. 2014:167 [ref. 33535], Sarmiento et al. 2014:184 [ref. 35004], Ohara & Lima 2015:562 [ref. 33846], García-Alzate et al. 2015:222 [ref. 33855], Zarske 2015:288 [ref. 34028], Bragança et al. 2015:255 [ref. 34051], Teixeira et al. 2016:459 [ref. 34088], Dagosta et al. 2016:250 [ref. 34377], Lima & Flausino Junior 2016:89 [ref. 34408], Marinho et al. 2016:510 [ref. 34591], Pastana & Ohara 2016:386 [ref. 34716], Zarske 2016:105 [ref. 34774], Bertaco et al. 2016:413 [ref. 34561], Ohara et al. 2017:242 [ref. 35067], García-Alzate et al. 2017:123 [ref. 35253], Ohara et al. 2017:1 [ref. 35494], Carvalho et al. 2017:1 [ref. 35509], Moreira & Lima 2017:123 [ref. 35562], Pastana et al. 2017:1 [ref. 35596], Camelier et al. 2018:[1] [ref. 35836], Zanata et al. 2018:[1] [ref. 35863], Faria et al. 2018:1 [ref. 35883], Guimarães et al. 2018:79 [ref. 35965], Guimarães et al. 2019:345 [ref. 36774], Ohara et al. 2019:561 [ref. 37197], Teixeira et al. 2019:140 [ref. 37142], Ota et al. 2020:401 [ref. 37391], García-Alzate et al. 2020:[1] [ref. 37414], Faria et al. 2020:369 [ref. 37543], Faria et al. 2020:275 [ref. 37838], Guimarães et al. 2020:77 [ref. 37899], Faria et al. 2021:1 [ref. 38179], Lima et al. 2022:253 [ref. 39116], Dagosta et al. 2022:1 [ref. 39143], Ardila Rodríguez 2022:1 [ref. 39172], Ardila Rodríguez 2022:1 [ref. 39810], Elías et al. 2023:3 [ref. 39863], Marinho & Dagosta 2024:1 [ref. 41147], Melo et al. 2024:25 [ref. 41541] in Hyphessobryconinae, Lima et al. 2024:251 [ref. 41835], Lima et al. 2025:1 [ref. 41903], Lima et al. 2025:50 [ref. 41921], Pastana et al. 2025:301 [ref. 42141], Faria et al. 2025:1 [ref. 42414]). Current status: Valid as Hyphessobrycon Durbin 1908. Acestrorhamphidae: Hyphessobryconinae.

Inpaichthys Géry [J.] & Junk [W. J.] 1977:417 Masc. Inpaichthys kerri Géry & Junk 1977. Type by original designation (also monotypic). •Valid as Inpaichthys Géry & Junk 1977 -- (Lima in Reis et al. 2003:141 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Aphyocharacinae, Mirande 2010:524 [ref. 31006], Tagliacollo et al. 2012:298 [ref. 31996] but excluded from Aphyocharacinae, Ferreira et al. 2024:5 [ref. 40854], Melo et al. 2024:26 [ref. 41541] in Thayeriinae, Dagosta 2025:1 [ref. 42521]). Current status: Valid as Inpaichthys Géry & Junk 1977. Acestrorhamphidae: Thayeriinae.

Joinvillea Steindachner [F.] 1908:29 [30] Fem. Joinvillea rosae Steindachner 1908. Type by monotypy. On p. 30 of separate. •Synonym of Deuterodon Eigenmann 1907 -- (Lucena & Lucena 2002:124 [ref. 26205], Lucena et al. in Reis et al. 2003:127 [ref. 27061]). Current status: Synonym of Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Jupiaba Zanata [A. M.] 1997:102 Fem. Jupiaba poranga Zanata 1997. Type by original designation. •Synonym of Astyanax Baird & Girard 1845, but a valid subgenus Jupiaba -- (Zarske & Géry 1999:203 [ref. 24913]). •Valid as Jupiaba Zanata 1997 -- (Moreira et al. 2002:78 [ref. 26068], Benine 2002:292 [ref. 26541], Buckup in Reis et al. 2003:141-142 [ref. 27061], Zanata & Lima 2005:272 [ref. 28235], Pereira & Lucinda 3007:53 [ref. 29302], Mirande 2009:7 [ref. 30267] in Characidae, Jupiaba clade, Birindellli et al. 2009:11 [ref. 30143], Netto-Ferreira et al. 2009: 53 [ref. 30519], Zanata & Ohara 2009:513 [ref. 30674], Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Sarmiento et al. 2014:184 [ref. 35004], Terán et al. 2020:8 [ref. 37440], Melo et al. 2024:24 [ref. 41541] in Jupiabinae). Current status: Valid as Jupiaba Zanata 1997. Acestrorhamphidae: Jupiabinae.

Lamprocheirodon (subgenus of Cheirodon) Géry [J.] 1960:13 Masc. Cheirodon axelrodi Schultz 1956. Type by original designation (also monotypic). •Synonym of Cheirodon Girard 1854, but a valid subgenus Lamprocheirodon as described -- (Géry 1977:563 [ref. 1597]). •Synonym of Paracheirodon Géry 1960 -- (Weitzman & Fink 1983:353 [ref. 5383], Malabarba 1998:232 [ref. 23844], Malabarba in Reis et al. 2003:152 [ref. 27061]). Current status: Synonym of Paracheirodon Géry 1960. Acestrorhamphidae: Megalamphodinae.

Luetkenia Steindachner [F.] 1876:85 Fem. Luetkenia insignis Steindachner 1876. Type by monotypy. Originally as Lütkenia; correction mandatory. Apparently preoccupied by Lütkenia Claus 1864 in Crustacea [not investigated], replaced by Stichonodon Eigenmann 1903. •Objective synonym of Stichonodon Eigenmann 1903 -- (Reis in Reis et al. 2003:156 [ref. 27061]). Current status: Synonym of Stichonodon Eigenmann 1903. Acestrorhamphidae: Stichonodontinae.

Makunaima Terán [G. E.], Benitez [M. F.] & Mirande [J. M.] 2020:7 Masc. Astyanax guaporensis Eigenmann 1911. Type by original designation. •Valid as Makunaima Terán, Benitez & Mirande 2020 -- (Melo et al. 2024:21 [ref. 41541] in Megalamphodinae). Current status: Valid as Makunaima Terán, Benitez & Mirande 2020. Acestrorhamphidae: Megalamphodinae.

Megalamphodus Eigenmann [C. H.] 1915:49 Masc. Megalamphodus megalopterus Eigenmann 1915. Type by original designation. •Synonym of Hyphessobrycon Durbin 1908 -- (Weitzman & Palmer 1997:232 [ref. 22743], see Malabarba 1998:230 [ref. 23844], Lima & Malabarba in Reis et al. 2003:134 [ref. 27061], Malabarba et al. 2012:57 [ref. 31810]). •Valid as Megalamphodus Eigenmann 1915 -- (Géry 1977:583 [ref. 1597], Taphorn 1992:251 [ref. 23654], Britski et al. 1999:44 [ref. 24147], Melo et al. 2024:21 [ref. 41541] in Megalamphodinae). Current status: Valid as Megalamphodus Eigenmann 1915. Acestrorhamphidae: Megalamphodinae.

Moenkhausia Eigenmann [C. H.] 1903:145 Fem. Tetragonopterus xinguensis Steindachner 1882. Type by original designation (also monotypic). •Valid as Moenkhausia Eigenmann 1903 -- (Géry 1977:438 [ref. 1597], Géry 1992 [ref. 20972], Taphorn 1992:266 [ref. 23654], Britski et al. 1999:32 [ref. 24147], Lima & Toledo-Piza 2001:1058 [ref. 25823], Zarske & Géry 2002:17 [ref. 26554], Benine 2002:289 [ref. 26541], Benine in Reis et al. 2003:145 [ref. 27061], Benine et al. 2004:68 [ref. 27502], Géry & Zarske 2004:40 [ref. 28287], Bertaco & Lucinda 2006:64 [ref. 28492], Lima & Birindelli 2006:53 [ref. 28635], Lucinda et al. 2007:61, 66 [ref. 29183], Benine et al. 2009:161 [ref. 30250], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Zanata et al. 2010:2615 [ref. 30712], Sousa et al. 2010:255 [ref. 30683], Marinho & Langeani 2010:879 [ref. 30927], Marinho & Langeani 2010:57 [ref. 30941], Marinho 2010:655 [ref. 30977], Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Melo et al. 2011:53 [ref. 31233], Bertaco et al. 2011:57 [ref. 31234], Bertaco et al. 2011:29 [ref. 31403], Carvalho et al. 2014:377 [ref. 33383], Pastana & Dagosta 2014:389 [ref. 33384], Petrolli & Benine 2015:401 [ref. 33887], Dagosta et al. 2015:417 [ref. 33998], Ohara & Lima 2015:159 [ref. 34046], Oliveira & Marinho 2016:566 [ref. 34342], Marinho et al. 2016:243 [ref. 34376], Ohara & Marinho 2016:[1] 37 [ref. 34383], Petrolli et al. 2016:159 [ref. 34395], Marinho & Langeani 2016:338 [ref. 34416], Dagosta & Marinho 2016:[1] [ref. 34498], Bertaco et al. 2016:414 [ref. 34561], Azevedo-Santos & Benine 2016:203 [ref. 34837], Soares & Bührnheim 2016:392 [ref. 34972]. Soares et al. 2017:255 [ref. 35237], Britzke et al. 2018:1 [ref. 36024], Lima & Soares 2018:69 [ref. 36077], Deprá et al. 2018:87 [ref. 36283], Soares et al. 2019:232 [ref. 36688], Soares & Benine 2019:487 [ref. 37120], Mathubara & Toledo-Piza 2020:1 [ref. 37766], Mathubara & Toledo-Piza 2020:1 [ref. 37778], Marinho et al. 2021:1 [ref. 38394], Reia et al. 2021:1 [ref. 38583], Marinho & Dagosta 2023:1 [ref. 40358], Lima et al. 2023:586 [ref. 40391], Reia et al. 2024:1 [ref. 40849], Melo et al. 2024:22 [ref. 41541] in Stichonodontinae, Silva et al. 2025:1 [ref. 42364]). Current status: Valid as Moenkhausia Eigenmann 1903. Acestrorhamphidae: Stichonodontinae.

Myxiops Zanata [A. M.] & Akama [A.] 2004:46 Masc. Myxiops aphos Zanata & Akama 2004. Type by original designation (also monotypic). •Valid as Myxiops Zanata & Akama 2004 -- (Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade with question, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae with question, Melo et al. 2024:21 [ref. 41541] in Stygichthyinae). Current status: Valid as Myxiops Zanata & Akama 2004. Acestrorhamphidae: Stygichthyinae.

Nematobrycon Eigenmann [C. H.] 1911:215 Masc. Nematobrycon palmeri Eigenmann 1911. Type by monotypy. •Valid as Nematobrycon Eigenmann 1911 -- (Géry 1977:386 [ref. 1597], Pavanelli in Reis et al. 2003:150 [ref. 27061]). •Valid as Nematobrycon Eigenmann 1911 -- (Mirande 2010:521 [ref. 31006] in Characidae, subfamily Gymnocharacinae, Oliveira et al. 2011:13 [ref. 31685], Melo et al. 2024:28 [ref. 41541] in Rhoadsiinae). Current status: Valid as Nematobrycon Eigenmann 1911. Acestrorhamphidae: Rhoadsiinae.

Nematocharax Weitzman [S. H.], Menezes [N. A.] & Britski [H. A.] 1986:335 Masc. Nematocharax venustus Weitzman, Menezes & Britski 1986. Type by original designation (also monotypic). •Valid as Nematocharax Weitzman, Menezes & Britski 1986 -- (Malabarba in Reis et al. 2003:151 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Rhoadsiinae with question, Mirande 2010:499 [ref. 31006], Thomaz et al. 2010:1350 [ref. 31210], Negreiros de Bragança et al. 2013:3 [ref. 32664], Menezes et al. 2015:453 [ref. 33689], Barreto et al. 2018:1151 [ref. 36378], Melo et al. 2024:22 [ref. 41541] in Stichonodontinae). Current status: Valid as Nematocharax Weitzman, Menezes & Britski 1986. Acestrorhamphidae: Stichonodontinae.

Oligosarcus Günther [A.] 1864:353 Masc. Oligosarcus argenteus Günther 1864. Type by monotypy. Oligosargus is a misspelling. •Valid as Oligosarcus Günther 1864 -- (Géry 1977:326 [ref. 1597], Menezes & Géry 1983:563 [ref. 8307], Malabarba 1989:137 [ref. 14217], Menezes 1990:1 [ref. 20060], Braga 1994:15 [ref. 27878], Menezes in Reis et al. 2003:151 [ref. 27061], Ribeiro et al. 2007:43 [ref. 29321], Mirande 2009:7 [ref. 30267] in Characidae, Bramocharax clade, Menezes & Ribeiro 2010:649 [ref. 30976], Mirande 2010:496 [ref. 31006], Mirande et al. 2011:1 [ref. 31465], Almirón et al. 2015:581 [ref. 33673], Ribeiro & Menezes 2015:41 [ref. 33768], Menezes & Ribeiro 2015:541 [ref. 33973], Bertaco et al. 2016:414 [ref. 34561], Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae). Current status: Valid as Oligosarcus Günther 1864. Acestrorhamphidae: Acestrorhamphinae.

Opisthanodus Ahl [E.] 1935:46 Masc. Opisthanodus haerteli Ahl 1935. Type by original designation (also monotypic). Also appeared as new in Ahl in Anonymous 1936:91 [ref. 35697]. If the type species is correctly identified as Moenkhausia pittieri Eigenmann 1920, then the name is a senior synonym of Makunaima Terán, Benitez & Mirande 2020. •Valid as Opisthanodus Ahl 1935 -- (Géry 1977:431 [ref. 1597]). •Synonym of Moenkhausia Eigenmann 1903 -- (Benine in Reis et al. 2003:145 [ref. 27061]). •Synonym of Makunaima Terán, Benitez & Mirande 2020. Nomen Dubium. Current status: Synonym of Makunaima Terán, Benitez & Mirande 2020. Acestrorhamphidae: Megalamphodinae.

Orthospinus Reis [R. E.] 1989:42 Masc. Buritia cisalpinoi Brant 1974. Type by being a replacement name. Replacement for Buritia Brant 1974, preoccupied by Buritia Young 1951 in Hemiptera. •Valid as Orthospinus Reis 1989 -- (Reis in Reis et al. 2003:209-210 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Oliveira et al. 2011:13 [ref. 31685] in Stethaprioninae, Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Orthospinus Reis 1989. Acestrorhamphidae: Stethaprioninae.

Oxybrycon Géry [J.] 1964:15 Masc. Oxybrycon parvulus Géry 1964. Type by original designation (also monotypic). •Valid as Oxybrycon Géry 1964 -- (Géry 1977:591 [ref. 1597], see Malabarba 1998:232 [ref. 23844], Pavanelli in Reis et al. 2003:152 [ref. 27061], Mirande 2009:7 [ref. 30267] and Mirande 2010:528 [ref. 31006] in Characidae, Aphyoditeinae with question, Melo et al. 2024:17 [ref. 41541] in Oxybryconinae). Current status: Valid as Oxybrycon Géry 1964. Acestrorhamphidae: Oxybryconinae.

Paracheirodon Géry [J.] 1960:12 Masc. Hyphessobrycon innesi Myers 1936. Type by original designation (also monotypic). •Valid as Paracheirodon Géry 1960 -- (Géry 1977:587 [ref. 1597], Weitzman & Fink 1983:353 [ref. 5383], Malabarba 1998:232 [ref. 23844], Malabarba in Reis et al. 2003:152 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Marshall et al. 2012:378 [ref. 31785], Bittencourt et al. 2020:1 [ref. 37634], Melo et al. 2024:21 [ref. 41541] in Megalamphodinae). Current status: Valid as Paracheirodon Géry 1960. Acestrorhamphidae: Megalamphodinae.

Parapristella Géry [J.] 1964:41 Fem. Pristella aubynei Eigenmann 1909. Type by original designation. •Valid as Parapristella Géry 1964 -- (Géry 1977:487 [ref. 1597], Taphorn 1992:292 [ref. 23654], Malabarba 1998:232 [ref. 23844], Pavanelli in Reis et al. 2003:153 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Mirande 2010:546 [ref. 31006], Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Parapristella Géry 1964. Acestrorhamphidae: Thayeriinae.

Parastremma Eigenmann [C. H.] 1912:20 Neut. Parastremma sadina Eigenmann 1912. Type by monotypy. •Valid as Parastremma Eigenmann 1912 -- (Géry 1977:538 [ref. 1597], Cardoso in Reis et al. 2003:213 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Rhoadsiinae, Mirande 2010:499 [ref. 31006], Melo et al. 2024:28 [ref. 41541] in Rhoadsiinae). Current status: Valid as Parastremma Eigenmann 1912. Acestrorhamphidae: Rhoadsiinae.

Parecbasis Eigenmann [C. H.] 1914:45 Fem. Parecbasis cyclolepis Eigenmann 1914. Type by monotypy. •Valid as Parecbasis Eigenmann 1914 -- (Géry 1977:590 [ref. 1597], Malabarba 1998:230 [ref. 23844], Pavanelli in Reis et al. 2003:153 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Aphyoditeinae, Mirande 2010:528 [ref. 31006], Melo et al. 2024:25 [ref. 41541] in Hyphessobryconinae). Current status: Valid as Parecbasis Eigenmann 1914. Acestrorhamphidae: Hyphessobryconinae.

Paroligosarcus (subgenus of Oligosarcus) Amaral Campos [A.] & Trewavas [E.] 1949:157 Masc. Oligosarcus pintoi Amaral Campos 1945. Type by monotypy. •Valid as Paroligosarcus Amaral Campos & Trewavas 1949 -- (Géry 1977:323 [ref. 1597]). •Synoym of Oligosarcus Günther 1864 -- (Menezes & Géry 1983:563 [ref. 8307], Braga 1994:15 [ref. 27878], Menezes in Reis et al. 2003:151 [ref. 27061]). Current status: Synonym of Oligosarcus Günther 1864. Acestrorhamphidae: Acestrorhamphinae.

Petitella Géry [J.] & Boutière [H.] 1964:474 Fem. Petitella georgiae Géry & Boutière 1964. Type by original designation (also monotypic). •Valid as Petitella Géry & Boutière 1964 -- (Géry 1977:547 [ref. 1597], see Malabarba 1998:232 [ref. 23844], Lima in Reis et al. 2003:153 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade with question, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae with question, Bittencourt et al. 2020:7 [ref. 37634], Melo et al. 2024:21 [ref. 41541] in Megalamphodinae). Current status: Valid as Petitella Géry & Boutière 1964. Acestrorhamphidae: Megalamphodinae.

Phycocharax Ohara [W. M.], Mirande [J. M.] & Lima [F. C. T.] 2017:3 Masc. Phycocharax rasbora Ohara, Mirande & Lima 2017. Type by original designation (also monotypic). •Valid as Phycocharax Ohara, Mirande & Lima 2017 -- (Frainer et al. 2021:11 [ref. 38777], Melo et al. 2024:25 [ref. 41541] in Hyphessobryconinae). Current status: Valid as Phycocharax Ohara, Mirande & Lima 2017. Acestrorhamphidae: Hyphessobryconinae.

Poecilurichthys Gill [T. N.] 1858:414, 417 Masc. Poecilurichthys brevoortii Gill 1858. Type by subsequent designation. Type designated by Eigenmann 1910:432 [ref. 1224]. •Synonym of Astyanax Baird & Girard 1854, but a valid subgenus Poecilurichthys -- (Géry 1977:426 [ref. 1597], Géry et al. 1996:8 [ref. 22155], Zarske & Géry 2002:17 [ref. 26554], Ruiz-C. et al. 2011:49 [ref. 31365], Ruiz-C et al. 2023:117 [ref. 39815]). •Synonym of Astyanax Baird & Girard 1854 -- (Taphorn 1992:110 [ref. 23654], Buckup in Reis et al. 2003:107 [ref. 27061], Bührnheim & Malabarba 2007:1 [ref. 29170], Terán et al. 2020:9 [ref. 37440]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.

Poptella Eigenmann [C. H.] 1908:106 Fem. Tetragonopterus longipinnis Popta 1901. Type by original designation (also monotypic). •Valid as Poptella Eigenmann 1908 -- (Géry 1977:367 [ref. 1597], Reis 1989:18 [ref. 14219], Taphorn 1992:302 [ref. 23654], Britski et al. 1999:56 [ref. 24147], Reis in Reis et al. 2003:210 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Oliveira et al. 2011:13 [ref. 31685] in Stethaprioninae, Garcia-Ayala & Benine 2019:1 [ref. 36770], Garcia-Ayala & Benine 2021:1 [ref. 38089], Garcia-Ayala & Benine 2023:1 [ref. 40179], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae, Garcia-Ayala et al. 2025:1 [ref. 42420]). Current status: Valid as Poptella Eigenmann 1908. Acestrorhamphidae: Stethaprioninae.

Priocharax Weitzman [S. H.] & Vari [R. P.] 1987:641 Masc. Priocharax ariel Weitzman & Vari 1987. Type by original designation. •Valid as Priocharax Weitzman & Vari 1987 -- (Lucena and Menezes in Reis et al. 2003:204 [ref. 27061], Mirande 2009:7 [ref. 30267] and Mirande 2010:490 [ref. 31006] in Characidae, Characinae with question, Toledo-Piza et al. 2014:229 [ref. 33370], Mattox et al. 2020:417 [ref. 37712] in Heterocharacinae, Mattox et al. 2021:1 [ref. 38426], Mattox et al. 2023:1 [ref. 39984], Melo et al. 2024:24 [ref. 41541] in Tyttobryconinae, Mattox et al. 2024:533 [ref. 41562], Mattox et al. 2025:545 [ref. 41898], Lopez et al. 2025:1 [ref. 42251]). Current status: Valid as Priocharax Weitzman & Vari 1987. Acestrorhamphidae: Tyttobryconinae.

Pristella Eigenmann [C. H.] 1908:99 Fem. Holopristes riddlei Meek 1907. Type by original designation (also monotypic). Correct spelling for genus of type species is Holopristis. •Valid as Pristella Eigenamnn 1908 -- (Géry 1977:582 [ref. 1597], Malabarba in Reis et al. 2003:154 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Conde-Saldaña et al. 2019:440 [ref. 36937] in Stethaprionini, Lima et al. 2021:339 [ref. 38293], Melo et al. 2024:23 [ref. 41541] in Pristellinae). Current status: Valid as Pristella Eigenmann 1908. Acestrorhamphidae: Pristellinae.

Pristicharax Fowler [H. W.] 1949:1 Masc. Pristicharax hanseni Fowler 1949. Type by original designation (also monotypic). •Synonym of Hasemania Ellis 1911 -- (see Weitzman & Fink 1985:2 [ref. 5203], Pavanelli in Reis et al. 2003:128 [ref. 27061]). Current status: Synonym of Hasemania Ellis 1911. Acestrorhamphidae: Stichonodontinae.

Probolodus Eigenmann [C. H.] 1911:164 Masc. Probolodus heterostomus Eigenmann 1911. Type by original designation (also monotypic). •Valid as Probolodus Eigenmann 1911 -- (Géry 1977:579 [ref. 1597], Malabarba 1998:230 [ref. 23844], Pavanelli in Reis et al. 2003:154 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Santos & Castro 2014:405 [ref. 33386]). •Synonym of Deuterodon Eigenmann 1907 -- Current status: Synonym of Deuterodon Eigenmann 1907. Acestrorhamphidae: Stygichthyinae.

Psalidodon Eigenmann [C. H.] 1911:165 Masc. Psalidodon gymnodontus Eigenmann 1911. Type by original designation (also monotypic). •Synonym of Astyanax Baird & Girard 1854 -- (Pavanelli & Oliveira 2009:569 [ref. 30986]). •Valid as Psalidodon Eigenmann 1911 -- (Géry 1977:578 [ref. 1597], Malabarba 1998:230 [ref. 23844], Pavanelli in Reis et al. 2003:154 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Terán et al. 2020:10 [ref. 37440], Alves et al. 2020:807 [ref. 38167], Queiroz et al. 2023:1 [ref. 40653], Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae, Silva et al. 2025:7 [ref. 41855], Teixeira et al. 2025:131 [ref. 42053], Queiroz et al. 2025:231 [ref. 42606]). Current status: Valid as Psalidodon Eigenmann 1911. Acestrorhamphidae: Acestrorhamphinae.

Psellogrammus Eigenmann [C. H.] 1908:99 Masc. Hemigrammus kennedyi Eigenmann 1903. Type by original designation (also monotypic). •Valid as Psellogrammus Eigenmann 1908 -- (Géry 1977:434 [ref. 1597], Britski et al. 1999:40 [ref. 24147], Benine & Cassati in Reis et al. 2003:154 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Astyanax clade, Mirande 2010:514 [ref. 31006], Mirande et al. 2011:13 [ref. 31465]). •Synonym of Ctenobrycon Eigenmann 1908 -- (Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae). Current status: Synonym of Ctenobrycon Eigenmann 1908. Acestrorhamphidae: Acestrorhamphinae.

Pseudochalceus Kner [R.] 1863:225 Masc. Pseudochalceus lineatus Kner 1863. Type by monotypy. Also appeared as new in Kner & Steindachner 1864:31 [ref. 2649]. •Valid as Pseudochalceus Kner 1863 -- (Géry 1977:414 [ref. 1597], Bertaco in Reis et al. 2003:155 [ref. 27061], Zarske & Géry 2006:37 [ref. 28750], Mirande 2009:7 [ref. 30267] in Characidae, Bramocharax clade with question, Mirande 2010:496 [ref. 31006] in Characidae, Pseudochalceus clade, Bertaco & Malababa 2013:767 [ref. 33025], Melo et al. 2024:28 [ref. 41541] in Rhoadsiinae). Current status: Valid as Pseudochalceus Kner 1863. Acestrorhamphidae: Rhoadsiinae.

Pseudopristella Géry [J.] 1960:18 Fem. Pseudopristella simulata Géry 1960. Type by original designation (also monotypic). •Valid as Pseudopristella Géry 1960 -- (Géry 1977:582 [ref. 1597]). •See Malabarba 1998:232 [ref. 23844]. •Synonym of Hyphessobrycon Durbin 1908 -- (Lima & Malabarba in Reis et al. 2003:134 [ref. 27061]). Current status: Synonym of Hyphessobrycon Durbin 1908. Acestrorhamphidae: Hyphessobryconinae.

Rachoviscus Myers [G. S.] 1926:1 Neut. Rachoviscus crassiceps Myers 1926. Type by monotypy. •Valid as Rachoviscus Myers 1926 -- (Géry 1977:347 [ref. 1597], Weitzman & Cruz 1981:997 [ref. 8528], Weitzman et al. 1986:343 [ref. 5984], Weitzman et al. 1988:420 [ref. 13557], Malabarba 1998:231 [ref. 23844], Lima in Reis et al. 2003:155 [ref. 27061], Mirande 2009:7 [ref. 30267] and Mirande 2010:524 [ref. 31006] in Characidae, Aphyocharacinae with question, Thomaz et al. 2010:1350 [ref. 31210], Tagliacollo et al. 2012:298 [ref. 31996] but excluded from Aphyocharacinae, Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Rachoviscus Myers 1926. Acestrorhamphidae: Thayeriinae.

Ramirezella Fernández-Yépez [A.] 1949:1 Fem. Ramirezella newboldi Fernández-Yépez 1949. Type by original designation (also monotypic). Mentioned (Géry 1977:487 [ref. 1597]). •Synonym of Hemigrammus or Moenkhausia -- (Taphorn 1992:221 [ref. 23654]). •Synonym of Hemigrammus Gill 1858 -- (Lima & Oyakawa in Reis et al. 2003:130 [ref. 27061]). •Valid as Ramirezella Fernández-Yépez 1949 -- (Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Ramirezella Fernández-Yépez 1949. Acestrorhamphidae: Thayeriinae.

Rhoadsia Fowler [H. W.] 1911:497 Fem. Rhoadsia altipinna Fowler 1911. Type by original designation (also monotypic). •Valid as Rhoadsia Fowler 1911 -- (Géry 1977:538 [ref. 1597], Böhlke 1984:42 [ref. 13621], Cardoso in Reis et al. 2003:213 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Rhoadsiinae, Mirande 2010:499 [ref. 31006], Melo et al. 2024:28 [ref. 41541] in Rhoadsiinae). Current status: Valid as Rhoadsia Fowler 1911. Acestrorhamphidae: Rhoadsiinae.

Rhodeoides Thominot [A.] 1884:149 Masc. Rhodeoides vaillanti Thominot 1884. Type by monotypy. Described as a cyprinodontid; referred by Myers 1953:786 [index to Jordan's Genera reprinted in 1953] to the Characidae. •Synonym of Grundulus Valenciennes 1846 -- (Malabarba 1998:229 [ref. 23844], Malabarba in Reis et al. 2003:128 [ref. 27061]). Current status: Synonym of Grundulus Valenciennes 1846. Acestrorhamphidae: Grundulinae.

Stethaprion Cope [E. D.] 1870:562 Neut. Stethaprion erythrops Cope 1870. Type by monotypy. The gender of the genus is treated by Cope 1872 [ref. 921] as neuter. •Valid as Stethaprion Cope 1870 -- (Géry 1977:370 [ref. 1597], Reis 1989:47 [ref. 14219], Reis in Reis et al. 2003:210 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Oliveira et al. 2011:13 [ref. 31685] in Stethaprioninae, Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Stethaprion Cope 1870. Acestrorhamphidae: Stethaprioninae.

Stichonodon Eigenmann [C. H.] 1903:146 Masc. Luetkenia insignis Steindachner 1876. Type by being a replacement name. Replacement for Luetkenia [original Lütkenia] Steindachner 1877, perhaps preoccupied by Lutkenia Claus 1864 in Crustacea [original spelling not investigated]. Misspelled Stichanodon by Eigenmann 1910:441 [ref. 1224]. •Valid as Stichonodon Eigenmann 1903 -- (Géry 1977:534 [ref. 1597], Reis in Reis et al. 2003:156 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Melo et al. 2024:22 [ref. 41541] in Stichonodontinae). Current status: Valid as Stichonodon Eigenmann 1903. Acestrorhamphidae: Stichonodontinae.

Stygichthys Brittan [M. R.] & Böhlke [J. E.] 1965:1 Masc. Stygichthys typhlops Brittan & Böhlke 1965. Type by original designation (also monotypic). •Valid as Stygichthys Brittan & Bhlke 1965 -- (Géry 1977:535 [ref. 1597], Lima in Reis et al. 2003:157 [ref. 27061], Proudlove 2006:56 [ref. 28992], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Moreira et al. 2010:1815 [ref. 30836], Mirande 2010:546 [ref. 31006], Melo et al. 2024:17 [ref. 41541] in Stygichthyinae). Current status: Valid as Stygichthys Brittan & Böhlke 1965. Acestrorhamphidae: Stygichthyinae.

Thayeria Eigenmann [C. H.] 1908:94 Fem. Thayeria obliquus [obliqua] Eigenmann 1908. Type by original designation (also monotypic). Type species originally spelled obliquus but emended by Eigenmann 1910:437 to obliqua to agree in gender with genus. •Valid as Thayeria Eigenmann 1908 -- (Géry 1977:514 [ref. 1597], Lima & Moreira in Reis et al. 2003:157 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Hemigrammus clade, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Moreira & Lima 2017:137 [ref. 35664], Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Thayeria Eigenmann 1908. Acestrorhamphidae: Thayeriinae.

Trochilocharax Zarske [A.] 2010:76 Masc. Trochilocharax ornatus Zarske 2010. Type by original designation (also monotypic). •Valid as Trochilocharax Zarske 2010 -- (Thomaz et al. 2015:4 [ref. 33893] incertae sedis in Stevardiinae, Melo et al. 2024:17 [ref. 41541] in Trochilocharacinae). Current status: Valid as Trochilocharax Zarske 2010. Acestrorhamphidae: Trochilocharacinae.

Tucanoichthys Géry [J.] & Römer [U.] 1997:66 Masc. Tucanoichthys tucano Géry & Römer 1997. Type by original designation (also monotypic). •Valid as Tucanoichthys Géry & Römer 1997 -- (Vari & Harold in Reis et al. 2003:158 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Mirande 2010:546 [ref. 31006], Melo et al. 2024:24 [ref. 41541] in Tyttobryconinae). Current status: Valid as Tucanoichthys Géry & Römer 1997. Acestrorhamphidae: Tyttobryconinae.

Tyttobrycon Géry [J.] 1973:117 Masc. Tyttobrycon xeruini Géry 1973. Type by original designation. See Malabarba 1998:232 [ref. 23844]. •Valid as Tyttobrycon Géry 1973 -- (Géry 1977:603 [ref. 1597], Malabarba in Reis et al. 2003:158 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Aphyoditeinae, Mirande 2010:528 [ref. 31006] with question, Marinho et al. 2013:739 [ref. 33025], Abrahão et al. 2019:1 [ref. 37182], Melo et al. 2024:24 [ref. 41541] in Tyttobryconinae). Current status: Valid as Tyttobrycon Géry 1973. Acestrorhamphidae: Tyttobryconinae.

Zygogaster Eigenmann [C. H.] 1913:22 Fem. Zygogaster filiferus Eigenmann 1913. Type by original designation (also monotypic). •Synonym of Astyanax Baird & Girard 1854 -- (Taphorn 1992:110 [ref. 23654], Buckup in Reis et al. 2003:107 [ref. 27061]). •Synonym of Astyanax Baird & Girard 1854, but a valid subgenus Zygogaster -- (Géry 1977:430 [ref. 1597], Zarske & Géry 1999:203 [ref. 24913], Ruiz-C. et al. 2011:48 [ref. 31365]). •Valid as Zygogaster Eigenmann 1913 -- (Terán et al. 2020:8 [ref. 37440]). Current status: Synonym of Astyanax Baird & Girard 1854. Acestrorhamphidae: Acestrorhamphinae.