Pterobranchia

Japanese: Pterobranchia
Pterobranchia

…They are similar in many ways to protochordates such as sea squirts, but are not completely hemichordates, hence the name hemichordate. They are divided into the class Enteropneusta, which includes the worms, and the class Pterobranchia, which includes the worms. Their bodies are generally cylindrical and do not have a segmented structure, but are divided into three parts: anterior body, middle body, and posterior body. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ホヤなどの原索動物と種々の形質で似ているが,完全ではないという意味で半索動物という名が用いられている。ギボシムシが含まれる腸鰓(ちようさい)綱(ギボシムシ綱)Enteropneustaとエノコロフサカツギが含まれる翼鰓(よくさい)綱(フサカツギ綱)Pterobranchiaに分けられる。 体は一般に円筒状で体節的構造をもたず,前体,中体,後体の3部に分かれる。…

※「Pterobranchia」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

<<:  Pternopetalum

>>:  Pterocarpus

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