albidus, Pimelodus Spix [J. B. von] & Agassiz [L.] 1829:19, Pl. 7 (fig. 1) [Selecta genera et species piscium quos in itinere per Brasiliam; ref. 13] No locality stated. Type catalog: Ferraris 2007:40 [ref. 29155]. Name published in the synonymy of Pimelodus spixii but name apparently available from the plate caption according to Ferraris 2007:40 [ref. 29155]. Preocccupied by Arius albidus Lesueur. •In the synonymy of Cathorops spixii (Spix & Agassiz 1829) -- (Marceniuk & Ferraris in Reis et al. 2003:449 [ref. 27061], Kailola 2004:132 [ref. 28108], Marceniuk 2005:97 [ref. 28718], Marceniuk & Menezes 2007:45 [ref. 29031], Ferraris 2007:40 [ref. 29155]). Current status: Synonym of Cathorops spixii (Agassiz 1829). Ariidae: Ariinae. Habitat: freshwater, brackish, marine.