Author: Freeman, Freeman & Burkhead, 2008
FBname: Halloween Darter
Comments: <i>Percina crypta</i> inhabits relatively swiftly flowing areas over bedrock or a mixture of coarse (boulder to gravel) bed sediments (Hill 1996; Marcinek 2003). The species is frequently associated with the aquatic macrophyte <i>Podostemum ceratophyllum</i> (Marcinek 2003). All of our observations of <i>P. crypta</i> have been in shoal habitats, which contrasts markedly with the broader range of stream habitats (pools, runs and riffles) occupied by the co-occurring congener <i>P. nigrofasciata</i> (Ref. 79864).