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yellowfin madtom
The yellowfin madtom (''Noturus flavipinnis'') is a species of fish in the Ictaluridae family endemic to the United States. Historically, the yellowfin madtom was widespread throughout the upper Tennessee River drainage, but was thought to be extinct by the time it was formally described.〔Taylor, W. R. 1969. A revision of the catfish genus'' Noturus'' Rafinesque with an analysis of higher groups in the Ictaluridae. Bull. U. S. Nat. Mus. 282:1-315.〕
==Geographic distribution==
The yellowfin madtom is largely found in Citico Creek of Monroe County, Tennessee, and reintroduced into Abrams Creek in Frederick County, Virginia. Prior to 1893, ''N. flavipinnis'' is thought to have been present throughout the upper Tennessee River drainage system. The species was thought to be extinct when it was described in 1969, 30 years after the Norris Dam on the Clinch River became operational.〔 Since then, populations of the yellowfin madtom have been found in Copper Creek and the Clinch River in Virginia, the Powell River and Citico Creek in Tennessee, and a few populations have also been found in the streams of northern Georgia, though the yellowfin madtom is now listed as extirpated in Georgia.〔Shute, P. W. 1984. Ecology of the rare yellowfin madtom, Noturus flavipinnis Taylor, in Citico Creek, Tennessee. M. S. Thesis, Univ. Tenn.〕〔Dinkins Gerald R. and P. Shute. 1996. Life histories of Noturus baileyi and N. flavipinnis (Pisces: Ictaluridae), two rare madtom catfishes in Citico Creek, Monroe County, Tennessee. Bulletin Alabama Museum of Natural History 18: 43-69.〕 Yellowfin madtom are found in backwaters and pools around rocks less than 30 cm in diameter and tree roots in clear creeks and small rivers.〔Bauer B.H., G. Dinkins and D. Etnier.1983. Discovery of ''Noturus-baileyi'' and ''Noturus-flavipinnis'' in Citico Creek, Little Tennessee River System. Copeia 2:558-560.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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