Phoronida

Japanese: Phoronida
Phoronida

…However, there are some points that do not match those of other protostomes, and it is thought that they underwent their own unique differentiation shortly after the emergence of protostomes and deuterostomes. The Phoronida class has a thin, cylindrical body, and lives in the sand and mud of shallow seas, inside a thin chitinous tube that it secretes. At the tip of the body is a horseshoe-shaped crown of tentacles, with dozens to hundreds of tentacles lined up. …

From [Broom Bug]

…A general term for an invertebrate animal belonging to the phylum Phoronida, or one of its species. The broom worm Phoronis australis (illustration) is found throughout Japan and Australia, and lives in the sand and mud of shallow seas inside a sac made of mucus secreted from the surface of its body, or lives symbiotically inside the tube of the purple anemone.

*Some of the terminology that mentions "Phoronida" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…しかし,他の前口動物と一致しない点もあり,前口動物と後口動物とが生じてまもなく,独自の分化をたどったものと考えられる。 ホウキムシ綱Phoronidaは体は細い円筒状で,自身が分泌した薄いキチン質の管の中に入って,浅海の砂泥中にすむ。体の先端に馬蹄(ばてい)状をした触手冠があって数十~数百本の触手が並んでいる。…

【ホウキムシ(箒虫)】より

…箒虫動物門Phoronidaに属する無脊椎動物の総称,またはそのうちの1種を指す。ホウキムシPhoronis australis(イラスト)は日本各地,オーストラリアに分布し,体表から分泌した粘液でつくった袋に入って浅海の砂泥中にすむか,ムラサキハナギンチャクの棲管(せいかん)の中に共生する。…

※「Phoronida」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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