aurantiacus, Hypostomus Castelnau [F. L.] 1855:43, Pl. 21 (fig. 2) [Animaux nouveaux or rares v. 2; ref. 766] Río Ucayali, Peru. Holotype (unique): MNHN 0000-9452 (dry). Type catalog: Bertin & Estève 1950:14 [ref. 19575], Ferraris 2007:278 [ref. 29155]. Name spelled aurentiacus on figure caption. Eschmeyer et al 1998:165 acted as first reviser selecting H. aurantiacus over H. aurentiacus. •Valid as Parancistrus aurantiacus (Castelnau 1855) -- (Isbrücker 1980:58 [ref. 2303], Ortega & Vari 1986:17 [ref. 9708], Burgess 1989:435 [ref. 12860], Rapp Py-Daniel 1989:239 [ref. 13470], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2001:28, 30 [ref. 25653], Isbrücker 2002:25 [ref. 27178], Fisch-Muller in Reis et al. 2003:392 [ref. 27061], Rapp Py-Daniel & Zuanon 2005:571 [ref. 28565], Ferraris 2007:278 [ref. 29155], Lujan et al. 2009:53 [ref. 30056]). Current status: Valid as Parancistrus aurantiacus (Castelnau 1855). Loricariidae: Hypostominae. Distribution: Ucayali, Tocantins and Xingu Rivers: Brazil and Peru. Habitat: freshwater.