erythrops, Stethaprion Cope [E. D.] 1870:562, Fig. [Proceedings of the American Philosophical Society v. 11; ref. 914] Pebas, Amazon system, Peru. Holotype (unique): ANSP 8031. Type catalog: Böhlke 1984:45 [ref. 13621]. •Valid as Stethaprion erythrops Cope 1870 -- (Ortega & Vari 1986:9 [ref. 9708], Reis 1989:51 [ref. 14219], Reis in Reis et al. 2003:210 [ref. 27061], Mirande 2010:505 [ref. 31006], Barriga Salazar 2014:109 [ref. 35745], DoNascimiento et al. 2017:46 [ref. 35633], Garcia-Ayala et al. 2017:572 [ref. 35695], Meza-Vargas et al. 2021:20 [ref. 39298]). Current status: Valid as Stethaprion erythrops Cope 1870. Acestrorhamphidae: Stethaprioninae. Distribution: South America: upper Amazon River basin (Brazil, Ecuador, Colombia and Peru). Habitat: freshwater.