brunnescens, Doras Jardine [W.] in Schomburgk 1841:163 [The Natural history of fishes of Guiana; ref. 18707] Upper Essequibo River, Guyana. No types known. Type catalog: Ferraris 2007:168 [ref. 29155]. Based on a drawing. Considered a nomen oblitum by Sabaj & Ferraris in Reis et al. 2003:458 [ref. 27061]. •Synonym of Acanthodoras spinosissimus (Eigenmann & Eigenmann 1888) -- (Sabaj & Ferraris in Reis et al. 2003:458 [ref. 27061], Ferraris 2007:168 [ref. 29155]). Current status: Synonym of Acanthodoras spinosissimus (Eigenmann & Eigenmann 1888). Doradidae: Acanthodoradinae. Habitat: freshwater.