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''Frenulina'' is a extant genus of brachiopod, known from shallow waters in the warmer parts of the Pacific and Indian Oceans. Its shell is biconvex, rounded pentagonal in profile, and dependent on the species scarlet with creamy white radiating stripes of quickly varying width, beige or seldomly entirely white. It lives attached by a stalk to a hard underground. == Species and distribution == * ''Frenulina sanguinolenta'' has creamy white radiating stripes of quickly varying width on a scarlet shell, or is very rarely entirely white. It is very common in the western Pacific, including Australia, New Caledonia, French Polynesia, Philippines, China, Japan and Hawaii, but also occurs in the Indian Ocean. * ''F. cruenta'' is known from the Indian Ocean. * ''F. mauiensis occurs in Hawaii. File:Frenulina sanguinolenta pedical valve.jpg|''Frenulina sanguinolenta'', pedical valve, 11mm File:Frenulina sanguinolenta brachial.jpg|brachial valve File:Frenulina sanguinolenta lateral.jpg|lateral view 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「Frenulina」の詳細全文を読む スポンサード リンク
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