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Sabellaria spinulosa : ウィキペディア英語版 | Sabellaria spinulosa
''Sabellaria spinulosa'' is a species of marine polychaete worm in the family Sabellariidae, commonly known as the Ross worm. It lives in a tube built of sand, gravel and pieces of shell. ==Description== ''S. spinulosa'' lives in a tube made of shell fragments and coarse sand cemented together with mucus. The tube has a circular cross section and can be closed by an operculum formed by bristles growing on the head of the worm. There are several thoracic segments and the abdomen has many segments that have hooked bristles on raised lobes. The worm's distinguishing features include three thoracic segments with paired chaetal sheaths, pointed opercular chaetae and an outer layer of serrated chaetae.〔(Ross worm - ''Sabellaria spinulosa''. ) Marine Life Information Network. Retrieved 2011-11-03.〕〔(NIWA Guide to Polychaeta ) Retrieved 2011-11-04.〕
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「Sabellaria spinulosa」の詳細全文を読む
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