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| regnum = Animalia | phylum = Chordata | classis = Chondrichthyes | subclassis = Elasmobranchii | ordo = Myliobatiformes | subordo = Myliobatoidei | familia = Dasyatidae | familia_authority = D. S. Jordan, 1888 }} The whiptail stingrays are a family, Dasyatidae, of rays in the order Myliobatiformes. They are found worldwide in tropical to temperate marine waters, and a number of species have also penetrated into fresh water in North America, Africa, Asia, and Australia. Members of this family have flattened pectoral fin discs that range from oval to diamond-like in shape. Their common name comes from their whip-like tails, which are much longer than the disc and lack dorsal and caudal fins. All whiptail stingrays, except the porcupine ray (''Urogymnus asperrimus''), have one or more venomous stings near the base of the tail, which is used in defense. They range in size from to more than across. ==Genera== * ''Dasyatis'' Rafinesque, 1810 * ''Himantura'' J. P. Müller and Henle, 1837 * ''Makararaja'' T. R. Roberts, 2007 * ''Neotrygon'' Castenau, 1873 * ''Pastinachus'' Rüppell, 1829 * ''Pteroplatytrygon'' Fowler, 1910 * ''Taeniura'' J. P. Müller and Henle, 1837 * ''Urogymnus'' J. P. Müller and Henle, 1837 Image:Sea Life Konstanz Rochen.jpg|''Dasyatis pastinaca'' Image:Himantura jenkinsii Maldives.JPG|''Himantura jenkinsii'' Image:Dasyatis kuhlii bali.jpg|''Neotrygon kuhlii'' Image:Pastinachus sephen taba.jpg|''Pastinachus sephen'' Image:Dasyatis violacea.jpg|''Pteroplatytrygon violacea'' Image:Black-blotched Stingray.jpg|''Taeniura meyeni'' Image:Urogymnus asperrimus Voavah.jpg|''Urogymnus asperrimus'' Image:Heliobatis radians, Lincoln County, Wyoming - Natural History Museum of Utah - DSC07176.JPG|Fossile de ''Heliobatis radians'' 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「Whiptail stingray」の詳細全文を読む スポンサード リンク
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