pictus, Hypostomus Castelnau [F. L.] 1855:44, Pl. 22 (fig. 2) [Animaux nouveaux or rares v. 2; ref. 766] Río Ucayali, Peru. Holotype (unique): MNHN A-9573. Type catalog: Bertin & Estève 1950:72 [ref. 19575], Ferraris 2007:265 [ref. 29155]. Subjectively invalid; secondarily preoccupied in Hemiancistrus by Ancistrus pictus Kner 1854, replaced by Hemiancistrus castelnaui Miranda Ribeiro 1911 (see that account). The name pictus is permanently invalid (Art. 59.3). •Valid as Lasiancistrus pictus (Castelnau 1855) -- (Isbrücker 1980:46 [ref. 2303] (see account of castelnaui), Ortega & Vari 1986:17 [ref. 9708], Burgess 1989:434 [ref. 12860], Knaack 2000:58 [ref. 27233]). •Synonym of Lasiancistrus castelnaui (Miranda Ribeiro 1911) -- (Isbrücker 2001:28 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Fisch-Muller in Reis et al. 2003:387 [ref. 27061]). •Synonym of Lasiancistrus schomburgkii (Günther 1864) -- (Armbruster 2005:561 [ref. 28554], Ferraris 2007:265 [ref. 29155], Armbruster et al. 2015:100 [ref. 33670]). Current status: Synonym of Lasiancistrus schomburgkii (Günther 1864). Loricariidae: Hypostominae. Habitat: freshwater.