Author: Kullander & Lucena, 2013
Comments: Specimens composed of an adult and 2 young were collected from a small stream with brownish very turbid water, with moderate current, about 4 m wide and 1-1.5 m deep. The bottom substrate was composed of rocks and stones. Fishes were encountered along overhanging banks. Associated species included <i>Gymnogeophagus setequedas</i> Reis, Malabarba & Pavanelli (Cichlidae) and <i>Bryconamericus stramineus</i> Eigenmann (Characidae), <i>Astyanax</i> sp. (Characidae),  <i>Hypostomus dlouhyi</i> Weber, <i>Hypoptopoma</i> sp. (Loricariidae), <i>Hoplias</i> sp. (Erythrinidae), <i>Leporinus lacustris</i> Amaral Campos (Anostomidae), <i>Steindachnerina brevipinnis</i> (Eigenmann & Eigenmann) (Curimatidae), <i>Eigenmannia virescens</i> (Valenciennes) (Sternopygidae), <i>Crenicichla lepidota</i> (Cichlidae), and <i>Pyrrhulina australis</i> Eigenmann & Kennedy (Lebiasinidae).  A juvenile was also captured in a small stream, more than 1.5 m deep with running, dark and turbid water and bottom consisted of sand, in open landscape with low trees and grass.  Associated species with this juvenile were <i>Characidium</i> sp. (Crenuchidae) and <i>Bryconamericus stramineus</i> (Characidae), <i>Astyanax</i> sp., <i>Cheirodon</i> sp.,  <i>Hemigrammus</i> sp., <i>Mimagoniates microlepis</i> (Steindachner) (Characidae), <i>Corydoras diphyes</i> Axenrot & Kullander (Callichthyidae), <i>Bunocephalus</i> sp. (Aspredinidae), <i>Gymnogeophagus setequedas</i> (Cichlidae), <i>Hypoptopoma</i> sp., (Loricariidae), and <i>Phallotorynus victoriae</i> Oliveros (Poeciliidae) (Ref. 93325).