erythropterum, Megalobrycon Cope [E. D.] 1872:263, Pl. 10 (fig. 2) [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Río Ambyiacu, Peru. Holotype: ANSP (not found). Type catalog: Böhlke 1984:45 [ref. 13621]. •Valid as Brycon erythropterum (Cope 1872) -- (Howes 1982:25 [ref. 14201], Ortega & Vari 1986:7 [ref. 9708], Géry & Mahnert 1992:803 [ref. 27146]). •Synonym of Brycon cephalus (Günther 1869) -- (Lima in Reis et al. 2003:175 [ref. 27061]). •Synonym of Brycon hilarii (Valenciennes 1850) -- (Lima 2017:98 [ref. 35071], Koerber et al. 2017:3 [ref. 35632] as erythropterus). Current status: Synonym of Brycon hilarii (Valenciennes 1850). Bryconidae: Bryconinae. Habitat: freshwater.