Percina maculata, the blackside 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 is a widespread inhabitant of streams and rivers in the Mississippi River watershed. Like other darters it prefers rocky riffles and sandy runs, but is tolerant of pools and still water as well. It is one of the 324 fish species found in Tennessee.

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