Greenside darter
The greenside darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It inhabits swift riffles in the eastern United... Wikipedia
Scientific name: Etheostoma blennioides
Conservation status: Least Concern (Population stable)
Class: Actinopterygii
Domain: Eukaryota
Family: Percidae