Author: (Almaça, 1967)
Comments: Occurs in water bodies on low-lying plains, with little current (Ref. 26100).  Also inhabits upper reaches of rivers with slow current.  Preys mainly on planktonic crustaceans, supplemented by insects and algae (Ref. 59043).   Threatened by pollution, habitat destruction and introduction of other species (Ref. 26100).  Size reaches up to at least 40 cm SL (Ref. 59043).