Author: (Steindachner, 1908)
Remark: See Machado-Allison, Fink & Antonio (1989: 146), Fink (1993: 671) and Machado-Allison & Fink (1996: 27) for further detail on genus status. See Machado-Allison & Fink (1996: 26). for  distribution in Venezuela. See Nico & Taphorn (1998: 317) for food habits.
Comments: Rarely captured.  Prefers to inhabit the upper reaches of main rivers.  Stomach content analysis showed that its food consisted mainly of seeds and to a lesser degree, morsels of fins (Ref. 12225).