hystrix, Acanthicus Spix [J. B. von] & Agassiz [L.] 1829:3, Pl. 1 (figs. 1-2) [Selecta genera et species piscium quos in itinere per Brasiliam; ref. 13] Amazon River. Holotype (unique): destroyed in World War II. Type catalog: Ferraris 2007:218 [ref. 29155]. Name first published in Cuvier 1829 [ref. 995]. Author also seen as Agassiz in Spix & Agassiz. •Valid as Acanthicus hystrix Spix & Agassiz 1829 -- (Isbrücker 1980:75 [ref. 2303], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:438 [ref. 12860], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2001:25 [ref. 25653], Isbrücker 2002:11 [ref. 27178], Ferraris 2003:865 [ref. 26999], Fisch-Muller in Reis et al. 2003:373 [ref. 27061], Ferraris 2007:218 [ref. 29155], Chamon 2016:397 [ref. 34326], DoNascimiento et al. 2017:79 [ref. 35633], Koerber et al. 2022:53 [ref. 39235], Provenzano-Rizzi & Lasso in Lasso & Morales-Betancourt 2022:176 [ref. 40783]). Current status: Valid as Acanthicus hystrix Spix & Agassiz 1829. Loricariidae: Hypostominae. Distribution: South America: Amazon, Tocantins-Araguaia and Orinoco River basins (Brazil, Venezuela). Habitat: freshwater.