gibbiceps, Ancistrus Kner [R.] 1854:284 [34], Pl. 5 (fig. 2) [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 7; ref. 2628] Upper Rio Negro near Marabitanos, Amazonas State, Brazil. Holotype (unique): whereabouts unknown. Type catalog: Ferraris 2007:291 [ref. 29155]. On p. 34 of separate. •Valid as Glyptoperichthys gibbiceps (Kner 1854) -- (Weber 1991:643 [ref. 19114], Weber 1992:17, 29 [ref. 19714], Chang & Ortega 1995:6 [ref. 24302], Burgess & Finley 1996:169 [ref. 22901], Isbrücker 2001:25 [ref. 25653], Isbrücker 2001:27 [ref. 25653], Lasso et al. 2001:99 [ref. 25928], Isbrücker 2002:16 [ref. 27178], Weber in Reis et al. 2003:352 [ref. 27061]). •Valid as Pterygoplichthys gibbiceps (Kner 1854) -- (Isbrücker 1980:41 [ref. 2303], Ortega & Vari 1986:18 [ref. 9708], Burgess 1989:433 [ref. 12860], Armbruster & Page 2006:402 [ref. 28898], Ferraris 2007:291 [ref. 29155], Barriga Salazar 2014:113 [ref. 35745], Sarmiento et al. 2014:192 [ref. 35004], DoNascimiento et al. 2017:82 [ref. 35633], Silvano et al. 2020:268 [ref. 38135], Meza-Vargas et al. 2021:26 [ref. 39298]). Current status: Valid as Pterygoplichthys gibbiceps (Kner 1854). Loricariidae: Hypostominae. Distribution: South America: middle and upper Amazon and Orinoco River basins (Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela). Habitat: freshwater.