A literature and regional repository review of the Big Sandy Basin ichthyofouno yielded 111 confirmed species, including 93 from Leviso Fork and its tributaries. Twenty-nine additional species were added to the lost published comprehensive review (Jenkins et al., 1972); one species was not re-confirmed. The 111 forms (108 confirmed or probable) included 14 known or suspected introductions and 20 species (including 12 recently collected from Leviso Fork) with special Kentucky Nature Preserves Commission status codes. The two most threatened Kentucky species were Percino macrocephala and Ammocrypto pellucido.
Howell, Jerry F. Jr., "The lchthyofauna of the Big Sandy River Basin, with Special Emphasis on the Levisa Fork Drainage" (1981). Faculty Research at Morehead State University. 946.