erythrurus, Aphyocharax Eigenmann [C. H.] 1912:313, Pl. 44 (fig. 4) [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Rockstone sand-bank, Guyana. Holotype: FMNH 53579 [ex CM 1879]. Paratypes: (39) AMNH 7101 (3); BMNH 1911.10.31.421-422 (2); CAS 59721 [ex IU 12161] (4, now 2); FMNH 7327 (2), 53406-07 (4, 1), 53967 (1), 69539 (6); MCZ 29945 (2); CAS-SU 21912 (2); USNM 66095 [ex CM] (2); ZMA 102158 (1). Type catalog: Henn 1928:57 [ref. 12305], Böhlke 1953:21 [ref. 12291], Nijssen et al. 1982:14 [ref. 19236], Ibarra & Stewart 1987:9 [ref. 12367], Vari & Howe 1991:5 [ref. 19022]. •May be the same as Aphyocharax alburnus (Günther 1869) -- (Taphorn 1992:107 [ref. 23654], Willink et al. 2003:5 [ref. 26755]). •Valid as Aphyocharax erythrurus Eigenmann 1912 -- (Lima in Reis et al. 2003:198 [ref. 27061], Menni 2004:76 [ref. 28131], DoNascimiento et al. 2017:52 [ref. 35633], Brito et al. 2018:398 [ref. 36071], Brito et al. 2019:515 [ref. 37042], Cortés Hernández et al. 2023:455 [ref. 40760]). Current status: Valid as Aphyocharax erythrurus Eigenmann 1912. Characidae: Aphyocharacinae. Distribution: South America: Amazon and Orinoco river basins (Guyana and Colombia). Habitat: freshwater.