Wireworm - Wireworm

Japanese: ハリガネムシ(針金虫) - ハリガネムシ

A general term for invertebrates belonging to the phylum Nematomorpha. This name comes from the fact that their bodies are long and slender like wires, and that the cuticle on their surface is quite hard. They live freely in freshwater. Their body length is usually 10-40cm, but some can reach up to 1m, and their body color varies from white, yellow, to dark brown. The front end of their body is round with an opening in the middle, and the rear end is round and branches into 2-3 lobes. Their digestive tract runs vertically along the ventral side of their body, but as they reach adulthood and mature, parts of the tube degenerate and close, making it impossible for them to take in food.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

類線形動物門Nematomorphaに属する無脊椎動物の総称。体が針金のように細長く，体表のクチクラがかなり硬いところからこの名がある。淡水中で自由生活する。体長は，ふつう10～40cmであるが，1mほどになるものもあり，体色も白色，黄色，暗褐色など，いろいろである。体の前端はまるくて中央に口が開き，後端はまるいか2～3葉に分岐する。消化管は体の腹側を縦走するが，成体になって成熟してくると管のところどころが退化して閉ざされ，食物をとることはできなくなる。

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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