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The splittails are a genus ''Pogonichthys'' of cyprinid fish, consisting of two species native to western North America. The common name is inspired by the distinctive appearance of the tail fin, in which the upper lobe is distinctly larger. Of the two species, only the Sacramento Splittail survives; the Clear Lake splittail became extinct in the mid-1970s. == Species == * †''Pogonichthys ciscoides'' Hopkirk, 1974 (Clear Lake splittail) * ''Pogonichthys macrolepidotus'' (Ayres, 1854) (Splittail) 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「Pogonichthys」の詳細全文を読む スポンサード リンク
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