Author: (Regan, 1908)
FBname: Knife livebearer
Comments: Inhabits waters of low to moderate velocity, between 0 and 300 m elevation.  Lives on creeks of more than 0.5 m deep, in ditches and near shorelines of large rivers.  Generally swims in small groups at a depth of 20 cm.  Insectivorous, the young eat mainly aquatic insects and the adults feed specifically on terrestrial insects (Ref. 36880).  Found in a rapidly flowing rainforest stream (Ref. 26130).