etentaculatum, Hypostoma Spix [J. B. von] & Agassiz [L.] 1829:7, Pl. 4 (figs. 1-2) [Selecta genera et species piscium quos in itinere per Brasiliam; ref. 13] Rio São Francisco, Januaria, Minas Gerais State, Brazil. Neotype: MZUSP 35821. Type catalog: Ferraris 2007:291 [ref. 29155]. Name first published in Cuvier 1829 [ref. 995]. Neotype designated by Weber 1992:25 [ref. 19714]. Species epithet misspelled etentaculum by Cuvier 1831:221 [ref. 30376]. •Valid as Pterygoplichthys etentaculatus (Spix & Agassiz 1829) -- (Isbrücker 1980:41 [ref. 2303], Burgess 1989:433 [ref. 12860], Weber 1991:642 [ref. 19114], Weber 1992:4, 25 [ref. 19714], Isbrücker 2001:28, 32 [ref. 25653], Isbrücker 2002:28 [ref. 27178], Weber in Reis et al. 2003:366 [ref. 27061], Armbruster & Page 2006:403 [ref. 28898], Ferraris 2007:291 [ref. 29155], Silva et al. 2020:12 [ref. 37809]). Current status: Valid as Pterygoplichthys etentaculatus (Spix & Agassiz 1829). Loricariidae: Hypostominae. Distribution: South America: São Francisco River basin (Minas Gerais and Bahia, Brazil). Habitat: freshwater.