humboldti, Doras Spix [J. B. von] & Agassiz [L.] 1829:14, Pl. 5 [Selecta genera et species piscium quos in itinere per Brasiliam; ref. 13] Rio São Francisco, at Januária, 15°29’37”S, 44°21’25”W, Minas Gerais, Brazil No types known. Type catalog: Ferraris 2007:176 [ref. 29155]. Comments on type locality see Koerber 2021:88 [ref. 38172]. •Questionably a synonym of Oxydoras niger (Valenciennes 1821) -- (Sabaj & Ferraris in Reis et al. 2003:464 [ref. 27061], Ferraris 2007:176 [ref. 29155]). Current status: Synonym of Oxydoras niger (Valenciennes 1821). Doradidae: Doradinae. Habitat: freshwater.