niveatus, Hypostomus Castelnau [F. L.] 1855:43, Pl. 21 (fig. 3) [Animaux nouveaux or rares v. 2; ref. 766] Rio Araguay, Goiás State, Brazil. Syntypes: MNHN A-9453 (1, dry), A-9454 (1, dry). Type catalog: Bertin & Estève 1950:14 [ref. 19575], Ferraris 2007:227 [ref. 29155]. •Valid as Parancistrus niveatus (Castelnau 1855) -- (Isbrücker 1980:58 [ref. 2303], Burgess 1989:435 [ref. 12860]). •Valid as Baryancistrus niveatus (Castelnau 1855) -- (Rapp Py-Daniel 1989:245 [ref. 13470], Isbrücker 2001:26, 28 [ref. 25653], Isbrücker 2002:13 [ref. 27178], Fisch-Muller in Reis et al. 2003:379 [ref. 27061], Ferraris 2007:227 [ref. 29155], Lujan et al. 2009:53 [ref. 30056], Rapp Py-Daniel et al. 2011:241[ref. 31383], de Oliveira et al. 2019:491 [ref. 36981], Koerber et al. 2022:52 [ref. 39235]). Current status: Valid as Baryancistrus niveatus (Castelnau 1855). Loricariidae: Hypostominae. Distribution: South America: Tocantins, Xingu, Tapajós and Trombetas River basins (northeastern Brazil). Habitat: freshwater.