nigripinnis, Euanemus Boulenger [G. A.] 1895:524 [Proceedings of the Zoological Society of London 1895 (pt 3); ref. 14576] Paraguay. Lectotype: BMNH 1895.5.17.37. Paralectotypes: (3) BMNH 1895.5.17.38-39 (2). Type catalog: Ferraris 2007:72 [ref. 29155]. Lectotype selected by Ferraris & Vari 1999:433 [ref. 23953]. •Valid as Auchenipterus nigripinnis (Boulenger 1895) -- (Burgess 1989:241 [ref. 12860], Gómez & Chebez 1996:58 [ref. 23791], Ferraris & Vari 1999:429 [ref. 23953], Britski et al. 1999:114 [ref. 24147], Ferraris in Reis et al. 2003:473 [ref. 27061], López et al. 2003:55 [ref. 27366], Menni 2004:83 [ref. 28131], Ferraris 2007:72 [ref. 29155], Litz & Koerber 2014:18 [ref. 33622], Sarmiento et al. 2014:143, 189 [ref. 35004], Mirande & Koerber 2015:30 [ref. 35117], Bertaco et al. 2016:416 [ref. 34561], Nión et al. 2016:33 [ref. 35565], Koerber et al. 2017:46 [ref. 35267], Calegari et al. 2019:[96] [ref. 36961], Loureiro et al. 2023:124 [ref. 40506]). Current status: Valid as Auchenipterus nigripinnis (Boulenger 1895). Auchenipteridae: Auchenipterinae. Distribution: South America: La Plata River basin (Argentina, Brazil, Bolivia, Paraguay and Uruguay). Habitat: freshwater.