dolichopterus, Ancistrus Kner [R.] 1854:274 [24], Pl. 3 (fig. 1) [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 7; ref. 2628] Manaus, Brazil. Syntypes: NMW 46276 (2), 47164 (2). Type catalog: Ferraris 2007:220 [ref. 29155]. On p. 24 of separate. •Valid as Ancistrus dolichopterus Kner 1854 -- (Isbrücker 1980:68 [ref. 2303], Burgess 1989:437 [ref. 12860], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2001:25 [ref. 25653], Isbrücker 2002:12 [ref. 27178], Fisch-Muller in Reis et al. 2003:375 [ref. 27061], Ferraris 2007:220 [ref. 29155], de Oliveira et al. 2015:73 [ref. 33869], de Oliveira et al. 2015:81 [ref. 33869], de Souza et al. 2019:62 [ref. 36504], Koerber et al. 2022:53 [ref. 39235] unconfirmed). Current status: Valid as Ancistrus dolichopterus Kner 1854. Loricariidae: Hypostominae. Distribution: South America: Rio Negro basin (Brazil). Habitat: freshwater.