Author: (Regan, 1912)
Remark: See the notes above under <i>C. arnoldi</i>.  This species appears more slender and it seems to inhabit more blackwater streams.  Nothing has been noted about its breeding behavior.  See Planquette, Keith and Le Bail, 1996:178 for its occurrence in French Guyana.
Comments: Lives in groups at the surface of small creeks with clear waters.  Also found in ponds where it is found together with <i>Rivulus</i> (Ref. 27188).  Feeds on Ephemeroptera larvae and ants.  The spawned eggs are deposited on submerged leaves and are guarded by the males (Ref. 12225).  During incubation, the male oxygenates the eggs (Ref. 27188).