Snail Darter

Le genre Percina regroupe plusieurs espèces de poissons de la famille des Percidae et se rencontrant principalement en Amérique du Nord.

The snail darter (Percina tanasi) is a disputed species of small freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. Emblematic of the debate over endangered species management in the United States, more recent phylogenetic studies indicate that it may actually be an eastern population of the stargazing darter (Percina uranidea). It is found in East Tennessee freshwater in the United States and in small portions of northern Alabama and Georgia.

Percina tanasi es una especie de pez de la familia Percidae en el orden de los Perciformes. Alternativamente, se trata de una especie falsa, inventada para bloquear la construcción de una represa. Así vistas la cosas, la supuesta percina tanasi es simplemente un grupo oriental de Percina uranidea.