argentinus, Pimelodus Humboldt [F. H. A. von] in Humboldt & Valenciennes 1821:171 [Voyage de Humboldt et Bonpland v. 2 (Title page 1833); ref. 5612] Río Magdalena near Chilloa, Colombia. No types known. •Valid as Rhamdia argentina (Humboldt 1821) -- (Burgess 1989:278 [ref. 12860]). •Status uncertain -- (Nico 2001:141 [ref. 25828]). Pimelodidae. Distribution: Colombia [if valid]. Habitat: freshwater.