Potamorhina

Potamorhina is a genus of toothless characin from South America, with these currently described species:
 * Potamorhina altamazonica (Cope, 1878)
 * Potamorhina laticeps (Valenciennes, 1850)
 * Potamorhina latior (Spix & Agassiz, 1829)
 * Potamorhina pristigaster (Steindachner, 1876)
 * Potamorhina squamoralevis (Braga & Azpelicueta, 1983)