xinguensis, Glyptoperichthys Weber [C.] 1991:640 [Revue Suisse de Zoologie v. 98 (no. 3); ref. 19114] Rio Fresco, affluent of Rio Xingu, Amazon system, Aldeio Gorotire, munic. São Felix do Xingu, Pará State, Brazil. Holotype: MZUSP 35961. Paratypes: MZUSP 36868 (1), ZMA 120230 (1). Type catalog: Ferraris 2007:292 [ref. 29155]. •Valid as Glyptoperichthys xinguensis Weber 1991 -- (Weber 1992:18, 30 [ref. 19714], Burgess & Finley 1996:169 [ref. 22901], Isbrücker 2001:27 [ref. 25653], Isbrücker 2002:16 [ref. 27178], Weber in Reis et al. 2003:353 [ref. 27061]). •Valid as Pterygoplichthys xinguensis (Weber 1991) -- (Armbruster & Page 2006:402 [ref. 28898], Ferraris 2007:292 [ref. 29155]). Current status: Valid as Pterygoplichthys xinguensis (Weber 1991). Loricariidae: Hypostominae. Distribution: Xingu River basin, Brazil. Habitat: freshwater.