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conasauga logperch
The Conasauga logperch (''Percina jenkinsi'') is a species of fish in the Percidae family. It is endemic to the United States. It is one of 184 species of darters in North America.〔Helfman, G.S., Collette, B.B., Facey, D.E., & Bowen, B.W. (2009). The diversity of fishes. West Sussex, UK: Wiley-Blackwell.〕 It has been listed as endangered throughout its range with critical habitat since August 5, 1985.〔Thompson B.A., J.D. Williams, and D.A. Etnier. 1986. Recovery plan for Conasauga logperch ''(Percina jenkinsi)'' and Amber darter ''(Percins antesella)''. U.S. Fish and Wildlife Service: Atlanta, Georgia. 34 pp.〕
==Anatomy and appearance==
This is a slender fish with a maximum length of 4.6 inches.〔Starnes, W.C, & Etnier, D.A. (1993). ''The fishes of Tennessee''. Knoxville, TN: The University of Tennessee Press.〕 They are characterized by the presence of a conical, "pig-like" snout and "tiger-stripe" pattern of numerous dark, vertical bars on a yellowish background. The curious snout development is an apparent adaptation to stone-flipping behavior, in which the snout is used to flip over rocks during feeding.〔 Unlike many other darter species, logperches show little sexual dimorphism in coloration.〔Near T.J. and M.F. Benard. 2004. Rapid allopatric speciation in logperch darters (Percidae: ''Percina).'' Evolution 58(12): 2798-2808.〕
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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