Aphyocharax

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Characiformes

Familia: Characidae
Subfamilia: Aphyocharacinae
Genus: Aphyocharax
Species: A. agassizii – A. alburnus – A. anisitsi – A. brevicaudatus – A. colifax – A. dentatus – A. gracilis – A. nattereri – A. pusillus – A. rathbuni – A. yekwanae
Name

Aphyocharax Günther, 1868

Type species: Aphyocharax pusillus Günther, 1868 [type by monotypy]
References

Günther, A. 1868. Diagnoses of some new freshwater fishes from Surinam and Brazil, in the collection of the British Museum. Annals and Magazine of Natural History, series 4 1(6): 475–481. DOI: 10.1080/00222936808695733 Paywall. BHL Reference page.
de Brito, P.S., Guimarães, E.C., Katz, A.M., Piorski, N.M. & Ottoni, F.P. 2018. Taxonomic status of Aphyocharax avary Fowler, 1913, Aphyocharax pusillus Günther, 1868 and Chirodon alburnus Günther, 1869 (Characiformes, Characidae). Zoosystematics and Evolution 94(2): 393–399. DOI: 10.3897/zse.94.28201 Reference page.
de Brito, P.S., Guimarães, E.C., Carvalho-Costa, L.F. & Ottoni, F.P. 2019. A new species of Aphyocharax Günther, 1868 (Characiformes, Characidae) from the Maracaçumé river basin, eastern Amazon. Zoosystematics and Evolution, 95(2): 507–516. DOI: 10.3897/zse.95.36788 Open access Reference page.

Aphyocharax is a genus of characins from South America, specifically the Amazon, Orinoco, Essequibo, Paraguay and Paraná basins. The 11 currently described species in this genus are:[1]

Aphyocharax agassizii (Steindachner, 1882)
Aphyocharax alburnus (Günther, 1869) (goldencrown tetra)
Aphyocharax anisitsi C. H. Eigenmann & C. H. Kennedy, 1903 (bloodfin tetra)
Aphyocharax colifax Taphorn & Thomerson, 1991
Aphyocharax dentatus C. H. Eigenmann & C. H. Kennedy, 1903
Aphyocharax erythrurus C. H. Eigenmann, 1912 (flame tail tetra)
Aphyocharax gracilis Fowler, 1940
Aphyocharax nattereri (Steindachner, 1882) * Note that Aphyocharax paraguayensis C. H. Eigenmann, 1915 (dawn tetra) is a synonym of A. nattereri.

Aphyocharax pusillus Günther, 1868
Aphyocharax rathbuni C. H. Eigenmann, 1907 (redflank bloodfin)
Aphyocharax yekwanae Willink, Chernoff & Machado-Allison, 2003

References

Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Aphyocharax in FishBase. October 2011 version.