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''Odontaspis'' is a genus with two extant species in the sand shark family, Odontaspididae. ==Description== ''Odontaspis'' species can reach a length of about . They are large-bodied sharks with long, conical snouts, broad-based dorsal and anal fins, and an asymmetrical caudal fin with a strong lower lobe. Their teeth are large, with prominent narrow cusps. They are distinguished from the similar genus ''Carcharias'' by the absence of crushing posterior teeth.〔Bourdon, J. (''Odontaspis'' Agassiz 1838 ). ''Elasmo.com''. Retrieved on December 24, 2008.〕 These bottom dwelling, deepwater sharks can be found in temperate and tropical waters of all the oceans.〔 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「Odontaspis」の詳細全文を読む スポンサード リンク
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