holdeni, Oxydoras Fernández-Yépez [A.] 1968:54, Figs. 24-26 [Boletin del Instituto Oceanografico Universidad de Oriente Cumana v. 7 (no. 1); ref. 1325] Río Apure, Venezuela. Holotype: AFY 51265 (missing). Paratypes: MCZ 7209 (1). Type catalog: Ferraris 2007:176 [ref. 29155]. •Valid as Pseudodoras holdeni (Fernández-Yépez 1968) -- (Burgess 1989:224 [ref. 12860]). •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.