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A tube worm is any worm-like sessile invertebrate that anchors its tail to an underwater surface and secretes around its body a mineral tube, into which it can withdraw its entire body. Tube worms are found among the following taxa: * Annelida, the phylum containing segmented worms * * Polychaetea, the class containing bristle worms * * * Canalipalpata, the order containing bristle-footed annelids or fan-head worms * * * * Siboglinidae, the family of beard worms * * * * * ''Riftia pachyptila'', a species known as giant tube worms * * * * * Lamellibrachia, a genus * * * * Serpulidae, a family * * * * Sabellidae, the family containing feather duster worms * Phoronida, the phylum containing horseshoe worms * Microconchida, an order of extinct tubeworms * ''Kuphus polythalamia'', a bivalve mollusc species whose common name is giant tube worm de:Röhrenwurm ja:チューブワーム 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「Tube worm」の詳細全文を読む スポンサード リンク
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