to alterations in habitat. Taxonomy and etymology The emerald darter was first formally described in 1982 by Lawrence M. Page and Brooks Burr with the type locality being given as the Little Sexton Creek which is a tributary of the South Fork Kentucky River in Clay County, Kentucky. The specific name honours the American ichthyologist Reeve Maclaren Bailey (1911–2011) who was Curator Emeritus of Fishes and Professor Emeritus of Zoology, University of Michigan, Museum of Zoology, Ann Arbor, Michigan in recognition of his contribution to systematic ichthyology. The emerald darter has been classified in the subgenus Ulocentra, the snubnose darters and shares many similarities with other species in the group, such as eight or nine dorsal saddles, a blunt nose, scales on the belly, and other distinguishing characteristics. Emerald darters are moderate-sized darters, ranging from 2.9 to 5.0 cm. However, molecular phylogenies have not recovered much evidence of paraphyly within the genus Etheostoma and thus the evidence supporting the use of subgenera for taxonomy in this genus is not strong. References Phillips B.W., C.E. Johnson. "Fish Assemblage Recovery and Persistence." Ecology of Freshwater Fishes (2004): 145-153. Etheostoma Fish described in 1982