Watercress darter

Watercress darter
Photo courtesy of the Geological Survey of Alabama
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Percidae
Genus: Etheostoma
Species:
E. nuchale
Binomial name
Etheostoma nuchale
W. M. Howell & R. D. Caldwell, 1965

The watercress darter (Etheostoma nuchale) 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 is endemic to the eastern United States where it is only known from the Black Warrior River drainage basin near Birmingham, Alabama.