Author: (Valenciennes, 1821)
FBname: Ripsaw catfish
Remark: Occurrence in Orinoco basin tentative, dependent upon identification of questionable synonym <i>Oxydoras holdeni</i> Fernández-Yépez; specimens of <i>Oxydoras niger</i> reported from Venezuela by Fernández-Yépez 1968:57 pertain to <i>Oxydoras sifontesi</i> Fernández-Yépez. Species-level distinctiveness of São Francisco and Amazonas <i>Oxydoras</i> not investigated.
Comments: Occurs over mud in streams and lakes.  Forms schools (Ref. 9084).  Feeds on detritus, chironomid and ephemeropteran larvae, and crustaceans (Ref. 9096).  Known from temperatures ranging from 24-29.8 °C, pH range of 5-9, and an alkalinity range of 42-142.