Percidae

Boulder darter

Etheostoma wapiti

Fish Reaching Eight Point Five Centimeters in North American Waters

• Tropical
• Northern Hemisphere
• Regional distribution
• Freshwater fish
• North America
• Small
• Tropical fish

The boulder darter (Etheostoma wapiti) 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 Alabama and Tennessee in the United States, where it occurs in the Elk River system and Shoal Creek. It is found in small rivers and fast-flowing streams, at least 2 ft (0.6 m) deep, with boulders or a rocky base.