Author: (Puyo, 1948)
Remark: Species inquirenda in Characidae according to Reis <i>et al.</i> (2003: Ref. 48062).  This species is uncertain in Eschmeyer (CofF ver. Jul. 2010: Ref. 84883), but is placed in the genus <i>Roeboexodon </i>.  Please send references, or more studies are needed.
Comments: Relatively rare.  Encountered in creeks with rapidly flowing water over a sandy substrate.  The particular form of its dentition allows it to feed on the scales of the other fish (Ref. 12225).  See color photo in Ref. 12225.