63483 Percina sipsi Williams & Neely, 2007 Percidae Perches Etheostomatinae Perciformes/Percoidei Teleostei Bankhead darter North America: United States of America. <i>Percina sipsi</i> is known only from the Sipsey Fork of the Black Warrior River in the Bankhead National Forest in northwestern Alabama. It occurs in Borden Creek in Lawrence County, and Brushy Creek, Caney Creek, and Sipsey Fork (recorded as West Fork Sipsey River on some maps) in Winston County. While the current known range of <i>P. sipsi</i> is very limited and confined downstream by Lewis Smith Reservoir, historically it is possible that the species ranged farther downstream in the Sipsey Fork and conceivably in the Locust and Mulberry forks of the Black Warrior River, which are all located in the Cumberland Plateau physiographic province. Riverine habitat in the lower reaches of the Sipsey Fork was destroyed in 1960 by the Alabama Power Company impoundment behind Lewis Smith Dam. The current distribution of <i>P. sipsi</i> represents the most restricted range of any known species of <i>Percina</i> (Ref. 58738).