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Ceriantheopsis americanus : ウィキペディア英語版 | Ceriantheopsis americanus
''Ceriantheopsis americanus'' is a species of tube-dwelling anemone in the family Cerianthidae. It is a burrowing species and lives in deep sand or muddy sand in a long slender tube that it creates. ==Description== ''Ceriantheopsis americanus'' is a large tube-dwelling anemone. The crown of tentacles can have a diameter of up to and project for 10 cm above the surface of the sediment. This anemone has a slender, elongated body and creates a tough, felted, leathery tube to line its burrow, using discharged cnidocytes stuck together with mucus and incorporating sand grains on the outer surface. The tube is orientated vertically in the sediment, with a maximum length of about . There is often a connecting short lateral tube branching off near the upper end. The top entrance is somewhat elastic and is up to in diameter, and the tube narrows towards the base.〔
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「Ceriantheopsis americanus」の詳細全文を読む
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