and the adults went back to deeper waters after breeding. Taxonomy The orangefin darter was first formally described in 1968 by Timothy Zorach with the type locality given as White Oak Creek, at a bridge between White Oak and Galen, 1.2 miles northwest of Galen in Macon County, Tennessee. Zorach initially placed it in the subgenus Nothonotus but Fishbase classifies it within the genus Etheostoma while recognising 4 species within a valid genus Nothonotus. Management Though the orangefin darter has a small range, it is listed by the IUCN as least concern "in view of the large number of subpopulations, large population size, apparently stable trend, and lack of major threats". The Nature Conservancy operates a conservation project in the Green River, which is inhabited by the orangefin darter. References Etheostoma Fish described in 1968 Green River (Kentucky) Barren River