Author: Axenrot & Kullander, 2003
Comments: Found in stream with dark, slightly turbid water, flowing through a landscape of mixed low forest and pasture (Ref. 52874).  Collected at the margin of an open field, but the stream flowed through dense low forest left along its bank and providing shadow (Ref. 52874).  Usually occurs in areas with sandy bottom, bank vegetation entering water or with marginal aquatic plants, dark, clear or slightly turbid water and limited associated fauna (Ref. 52874).  Mimics <i>Corydoras diphyes</i> (Ref. 52874).  Mimicry is unusual because the two species occupy different microhabitats and it is hypothesized to operate with a primarily visual predator moving between the microhabitats, tentatively identified as the cichlid <i>Crenicichla lepidota</i> (Ref. 52874).