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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fitzroy River turtle ： ウィキペディア英語版 Fitzroy River turtle The Fitzroy River turtle (''Rheodytes leukops'') is a species of freshwater turtle in the Chelidae family. It is the only surviving member of the genus ''Rheodytes'', the other member being the extinct form ''Rheodytes devisi''.〔Thomson S. (2000). A Revision of the Fossil Chelid Turtles (Pleurodira) Described by C.W. De Vis, 1897. Memoires of the Queensland Museum 45(2):593-598.〕 The species is endemic to south eastern Queensland, Australia and only found in riffle zones of the Fitzroy River. ==Description== The Fitzroy River turtle is light to dark brown in color and growing to approximately 260mm in carapace length.〔 The shell of hatchlings is highly serrated (up to 95 mm) while adults have a rounded, smooth edged shell.〔 The plastron is lighter in color and tapers anteriorally and posteriorally. The carapace is highly reticulated to the naked eye but this is actually a series of parallel ridges with occasional cross ridging under low magnification, however the plastron is smooth. 〔 The scutes are very thin and underlying sutures in both the carapace and plastron are visible through them in all but the darkest individuals.〔〔 Pictured in the taxobox is a carapace of a sub adult ''Rheodytes leukops'' (242mm length) showing the very visible sutures that can be seen through the scutes, still in place. The species, and in fact the genus, can also be identified by its very thin carapace bones a character used in diagnosing the related fossil species ''Rheodytes devisi''.〔 The upper surface of their necks are scattered with blunt to pointed conical skin tubercles that do not appear to have any specialized follicular centres (Legler and Winokur, 1979).〔Legler, J.M. and Winokur, R.M. 1979. Unusual neck tubercles in an Australian turtle. ''Herpetologica''. 35(4):325-329.〕 The species has a single pair of barbels on the lower jaw.〔 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「Fitzroy River turtle」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.