Author: (Eigenmann, 1911)
FBname: Croaking tetra
Remark: No recent species description, but see Weitzman et al. (1988) & Menezes &  Weitzman (1990) for identification and relationships. See Burns et al. (1995) for evidence of insemination. See   Nelson (1964 a, b, & c) for extensive description and discussion of courtship behavior.
Comments: Inhabit small to moderate-sized streams or rivers (Ref. 30267).