Porotergus Ellis [C. H.] in Eigenmann 1912:423, 440 Masc. Porotergus gymnotus Ellis 1912. Type by original designation. •Valid as Porotergus Ellis 1912 -- (see Mago-Leccia 1978:14 [ref. 5489], Triques 1993:123 [ref. 22107], Mago-Leccia 1994:32 [ref. 21320], Albert & Campos-da-Paz 1998:433 [ref. 23853] but generic status uncertain, Albert 2001:56 [ref. 25614] as "Porotergus", Albert in Reis et al. 2003:500 [ref. 27061], Triques 2005:144 [ref. 28939], Albert & Crampton 2009:90 [ref. 30049], de Santana & Crampton 2010:165 [ref. 30762], Tagliacollo et al. 2016:30 [ref. 34087] in 'Navajini', Ferraris et al. 2017:[10] [ref. 35236], Bernt et al. 2018:467 [ref. 35797]). Current status: Valid as Porotergus Ellis 1912. Apteronotidae: Apteronotinae.