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Molgula citrina : ウィキペディア英語版 | Molgula citrina
''Molgula citrina'' is a species of solitary tunicate in the family Molgulidae. It is found on both sides of the northern Atlantic Ocean and in the Arctic Ocean. In 2008 it was found in Kachemak Bay in Alaska, the first time it had been detected in the Pacific Ocean. ==Description== ''Molgula citrina'' takes the form of a globular or ovoid sac and can grow to a diameter of . The tunic (outer surface of the sac) is greyish-green and firm, with few particles of sediment adhering to it, and this distinguishes it from many species in this genus. The siphons are widely separated. The buccal siphon, through which water is drawn into the body cavity, has six lobes while the atrial siphon, through which water leaves, is short and has four lobes. About fourteen branched tentacles surround the base of the buccal siphon, and prevent particles that are too large from entering the body cavity.
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「Molgula citrina」の詳細全文を読む
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