balaenops, Sternarchus Cope [E. D.] 1878:682 [Proceedings of the American Philosophical Society v. 17 (no. 101); ref. 945] Pebas, Amazon system, Peru. Holotype (unique): ANSP 21462 (poor condition). Type catalog: Böhlke 1984:21 [ref. 13621], Ferraris et al. 2017:[5] [ref. 35236]. •Valid as Adontosternarchus balaenops (Cope 1878) -- (Ortega & Vari 1986:12 [ref. 9708], Mago-Leccia 1994:30 [ref. 21320], Albert 2001:109 [ref. 25614], Albert in Reis et al. 2003:498 [ref. 27061], Lundberg & Cox Fernandes 2007:35 [ref. 29255], de Santana & Vari 2012:535 [ref. 32200], Lundberg et al. 2013:158 [ref. 32552], Barriga Salazar 2014:116 [ref. 35745], Sarmiento et al. 2014:188 [ref. 35004], Ferraris et al. 2017:[5] [ref. 35236], DoNascimiento et al. 2017:67 [ref. 35633], Bernt et al. 2018:472 [ref. 35797], Ochoa et al. 2020:63 [ref. 37781], Meza-Vargas et al. 2021:21 [ref. 39298], Torgersen et al. 2023:769 [ref. 40692]). Current status: Valid as Adontosternarchus balaenops (Cope 1878). Apteronotidae: Apteronotinae. Distribution: South America: upper Amazon River basin (Brazil, Ecuador, Colombia, Bolivia and Peru). Habitat: freshwater.