Acestrorhamphidae, the American tetras, are a diverse family of freshwater fish in the order Characiformes. They are native to North and South America, from the southwestern United States south to temperate Argentina, with a few species introduced to other parts of the world. It includes many genera previously placed in the family Characidae, which was split into multiple families in 2024. It contains many of the most famous ornamental aquarium fish that are popularly known as tetras.
Taxonomy
The following taxonomy is based on Eschmeyer's Catalog of Fishes:
Family Acestrorhamphidae
Subfamily Oxybryconinae Melo, Mattox & Oliveira, 2024 Oxybrycon Géry, 1964 Subfamily Trochilocharacinae Melo, Mattox & Oliveira, 2024 (hummingbird characins) Trochilocharax Zarske, 2010 Subfamily Stygichthyinae Géry, 1972 Coptobrycon Géry, 1966 Deuterodon C. H. Eigenmann, 1907 Myxiops Zanata & Akama, 2004 Stygichthys Brittan & Böhlke, 1965 Subfamily Megalamphodinae Carvalho, Lima & Melo, 2024 (red tetras) Axelrodia Géry, 1965 Brittanichthys Géry, 1965 Makunaima Terán, Benitez & Mirande, 2020 Megalamphodus C. H. Eigenmann, 1915 Paracheirodon Géry, 1960 Petitella Géry & Boutière, 1964 Subfamily Stichonodontinae C. H. Eigenmann, 1910 Hasemania Ellis, 1911 Moenkhausia C. H. Eigenmann, 1903 Nematocharax Weitzman, Menezes & Britski, 1986 Stichonodon C. H. Eigenmann, 1903 Subfamily Stethaprioninae C. H. Eigenmann, 1907 (discus tetras) Brachychalcinus Boulenger, 1892 Ectrepopterus Fowler, 1943 Orthospinus Reis, 1989 Poptella C. H. Eigenmann, 1908 Stethaprion Cope, 1870 Subfamily Pristellinae Géry & Boutière, 1964 Hemigrammus Gill, 1858 Gymnocorymbus C. H. Eigenmann, 1908 Pristella C. H. Eigenmann, 1908 Subfamily Jupiabinae Benine & Ota, 2024 Jupiaba Zanata, 1997 Subfamily Tyttobryconinae Mattox & Melo, 2024 Priocharax Weitzman & Vari, 1987 Tucanoichthys Géry & Römer, 1997 Tyttobrycon Géry, 1973
Subfamily Hyphessobryconinae Lima, Carvalho & Faria, 2024 (multicusp characins) Dinotopterygium Frainer, Carvalho, Bertaco & Malabarba, 2021 Erythrocharax Netto-Ferreira, Birindelli, Sousa, Mariguela & Oliveira, 2013Netto-Ferreira, A.L., Birindelli, J.L.O., de Sousa, L.M., Mariguela, T.C. & Oliveira, C. (2013): A New Miniature Characid (Ostariophysi: Characiformes: Characidae), with Phylogenetic Position Inferred from Morphological and Molecular Data. PLoS ONE, 8 (1): e52098. doi:10.1371/journal.pone.0052098 Hyphessobrycon Durbin, 1908 Parecbasis C. H. Eigenmann, 1914 Phycocharax Ohara, Mirande & Lima, 2017Ohara, W.M., Mirande, J.M. & Lima, F.C.T.d. (2017): Phycocharax rasbora, a new genus and species of Brazilian tetra (Characiformes: Characidae) from Serra do Cachimbo, rio Tapajós basin. PLoS ONE, 12 (2): e0170648.
Subfamily Thayeriinae Ota, Reia & Benine, 2024 Bario Myers, 1940 Bryconella Géry, 1965 Hollandichthys C. H. Eigenmann, 1909 Holopristis C. H. Eigenmann, 1903 Inpaichthys Géry & Junk, 1977 Parapristella Géry, 1964 Rachoviscus Myers, 1926 Ramirezella Fernández-Yépez, 1949 Thayeria C. H. Eigenmann, 1908
Subfamily Rhoadsiinae Fowler, 1911 (Pacific characins) Carlana Strand, 1928 Nematobrycon C. H. Eigenmann, 1911 Parastremma C. H. Eigenmann, 1912 Pseudochalceus Kner, 1863 Rhoadsia Fowler, 1911
Subfamily Grundulinae Fowler, 1958 Astyanacinus C. H. Eigenmann, 1907 Grundulus Valenciennes, 1846
Subfamily Acestrorhamphinae C. H. Eigenmann, 1907 Andromakhe Terán, Benitez & Mirande, 2020 Astyanax Baird & Girard, 1854 Ctenobrycon C. H. Eigenmann, 1908 Oligosarcus Günther, 1864 Psalidodon C. H. Eigenmann, 1911
References