furca

Japanese: furca
furca

… Springtails have a unique, highly functional locomotor organ that is thought to be related to their prosperity. This organ is called the furca, which is located in the fourth abdominal segment. When the muscles of this organ contract, the furca, which is bent on the ventral surface, extends vigorously backward and strikes the ground violently at that moment. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… このような繁栄と関係があると思われる,高い機能をもった固有の運動器官がトビムシにはある。第4腹節にある跳躍器furca(叉状(さじよう)突起)と呼ばれる器官がそれである。この器官の筋肉が収縮すると,腹面に曲げ込まれた跳躍器は,勢いよく後方にのび,その瞬間激しく地面をたたく。…

※「furca」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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