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The Jollyville Plateau salamander (''Eurycea tonkawae'') is a species of salamander in the family Plethodontidae. It is also known as the Tonkawa Springs salamander. It is endemic to Travis and Williamson counties, Texas, United States. This species is perrenibranchiate, retaining its gills throughout life. ''Eurycea tonkawae'' is the sister taxon to ''E. naufragia'' and ''E. chisholmensis'', two other endemic perrenibranchiate central Texas salamanders. Its natural habitats are freshwater springs, spring runs, and wet caves of the Buttercup karst system. Cave dwelling ''E. tonkawae'' may represent a distinct species, however further work is needed to clarify their taxonomic status. ==Conservation status== ''Eurycea tonkawae'' is threatened by habitat loss and habitat degradation due to rapid urban growth. In August, 2013, this species was listed as threatened under the Endangered Species Act of 1973.〔(【引用サイトリンク】title=Federal Register Vol. 78 No. 161 Pp 51278-51326 )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jollyville Plateau salamander」の詳細全文を読む スポンサード リンク
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