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Thanetian to Present | image = Isistius brasiliensis.jpg | image_caption = Cookiecutter shark (''I. brasiliensis'') | image_width = 240px | regnum = Animalia | phylum = Chordata | classis = Chondrichthyes | subclassis = Elasmobranchii | ordo = Squaliformes | familia = Dalatiidae | genus = ''Isistius'' | genus_authority = T. N. Gill, 1865 | type_species = ''Isistius brasiliensis'' | type_species_authority = (Quoy & Gaimard, 1824) }} ''Isistius'' is a genus of dogfish sharks in the family Dalatiidae. They are commonly known as cookiecutter sharks. Members of the genus are known for their unusual behaviour and dentition.〔Jones, E. C. 1971. Isistius brasiliensis. a squaloid shark. the probable cause of crater wounds on fishes and cetaceans; Fish. Bull. 69.791-98.〕 ==Species== * ''Isistius brasiliensis'' Quoy & Gaimard, 1824 (Cookiecutter shark) * ''Isistius plutodus'' Garrick & S. Springer, 1964 (Largetooth cookiecutter shark) 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「Isistius」の詳細全文を読む スポンサード リンク
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