Chaetogaster annandalei (English spelling) Chaetogasterannandalei

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[form]
The body is cylindrical and elongated, with a mouth at the front and an anus at the back, and is divided into many segments of roughly the same size. Most are around 10 cm long and have 100 to 200 segments, but there are very small ones such as Chaetogaster annandalei of the Lumbicidae family, which is 0.44 mm long and 0.13 mm wide, and huge ones such as Megascolides australis of the Pheretidae family, which can grow up to 2.2 m long. The head does not have sensory organs such as tentacles or eyes, and each segment has fine setae in four bundles or lined up around the body.

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

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［形態］
　体は円筒状で細長く，前方に口，後方に肛門が開き，多くのほぼ同じ大きさの環節に分かれている。体長10cm内外，環節数100～200くらいのものが多いが，ミズミミズ科のChaetogaster annandaleiのように体長0.44mm，太さ0.13mmのごく小さいものや，フトミミズ科のMegascolides australisのように体長2.2mにもなる巨大なものがある。頭部には触手や眼などの感覚器官はなく，各体節に細かい剛毛が四つの束になっているか，体の周囲をとりまいて並んでいる。…

※「Chaetogaster annandalei」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