''Etheostoma duryi'', the black darter, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of darter

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the eastern

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, where it occurs in the drainage of the

Tennessee River The Tennessee River is the largest tributary of the Ohio River. It is approximately long and is located in the southeastern United States in the Tennessee Valley. The river was once popularly known as the Cherokee River, among other names, ...

in the states of

Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to th ...

, Georgia, and

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. It is an inhabitant of rocky pools in streams and smaller rivers and their adjacent riffles. This species can reach a length of , though most only reach about . The specific epithet honors Charles Dury (1847-1931), who collected the original type specimens.

References

duryi Fish described in 1889 {{Percidae-stub