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Percidae
Boulder darter
Etheostoma wapiti
Fish Reaching Eight Point Five Centimeters in North American Waters
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.
- Class
- Teleosts
- Order
- Perches and Allies
- Family
- Percidae
- Genus
- Etheostoma
- Maximum length
- 8.5 cm
- Water
- Freshwater
- Distribution
- North America: Elk River and Shoal Creek systems (in Tennessee River drainage) in southern Tennessee and northern Alabama, USA. Rare in Elk River and possibly extirpated in Shoal Creek.
- Conservation status
- VUVulnerable

