exodon, Oedemognathus Myers [G. S.] 1936:115 [Proceedings of the Biological Society of Washington v. 49; ref. 3114] Río Ampiyacu, Amazon system, eastern Peru. Holotype (unique): USNM 102040. Type catalog: Ferraris & Vari 1992:4 [ref. 19771], Ferraris et al. 2017:[12] [ref. 35236]. •Valid as Oedemognathus exodon Myers 1936 -- (Ortega & Vari 1986:12 [ref. 9708], Mago-Leccia 1994:31 [ref. 21320]). •Synonym of Sternarchogiton nattereri (Steindachner 1868) -- (Albert & Campos-da-Paz 1998:432 [ref. 23853], Albert in Reis et al. 2003:500 [ref. 27061], Cox Fernandes et al. 2009:204 [ref. 30178], Ferraris et al. 2017:[12] [ref. 35236]). Current status: Synonym of Sternarchogiton nattereri (Steindachner 1868). Apteronotidae: Apteronotinae. Habitat: freshwater.