Sternopygus Müller [J.] & Troschel [F. H.] in Müller 1846:194 Masc. Gymnotus aequilabiatus Humboldt 1805. Type by monotypy. Appeared in footnote. Also appeared as new in Müller & Troschel 1849:639 [ref. 3072]. Type selected by Ferraris et al. 2017:[34] [ref. 35236]; not macrurus Bloch; see discussion under Sternopygus on p. 34. •Valid as Sternopygus Müller & Troschel 1846 (often dated 1849 by authors) -- (Mago-Leccia 1978:28 [ref. 5489], Triques 1993:123 [ref. 22107], Mago-Leccia 1994:22 [ref. 21320], Albert & Fink 1996:86 [ref. 22024], Albert & Campos-da-Paz 1998:427 [ref. 23853], Alves-Gomes 1998:453 [ref. 23854], Britski et al. 1999:87 [ref. 24147], Triques 2000:19 [ref. 25027], Albert 2001:56 [ref. 25614], Albert in Reis et al. 2003:489 [ref. 27061], Hulen et al. 2005:408 [ref. 28485], Meunier et al. 2011:47 [ref. 31379], Vari et al. 2012:670 [ref. 32101], Tagliacollo et al. 2016:27 [ref. 34087] in Sternopygidae, Bertaco et al. 2016:422 [ref. 34561], Ferraris et al. 2017:[34] [ref. 35236], Torgersen & Albert 2022:714 [ref. 39802], Torgersen et al. 2023:1 [ref. 40151]). Current status: Valid as Sternopygus Müller & Troschel 1846. Sternopygidae: Sternopyginae.