A snail of the family Slugidae (illustration). The shell has degenerated and is missing. It is 6 cm long and 1 cm wide, slender, with a mesh-like wrinkled surface and moist mucus. It is light brown to bluish brown with black spots. There is a thin black-brown band on both sides of the body from the front to the back end, but sometimes there are three bands in the middle. There are two pairs of antennae on the head, and the eyes are located at the tips of the rear antennae. There is also a round stomata behind the right antenna, which opens and closes to breathe. The soles of the feet are flat and yellowish white. It crawls around in hot and humid conditions, but is particularly active at night, feeding on vegetable and flower seedlings. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ナメクジ科の巻貝(イラスト)。殻は退化して欠く。体長6cm,体幅1cmで細長く,体表は網目状のしわがあり,粘液で湿っている。淡褐色~帯青褐色で黒斑がある。前端より後端へかけ体の両側に細い黒褐色帯があるが,さらに中央にあり3帯のこともある。頭には2対の触角があり,後触角の先端に眼がある。また右触角の後方には丸い孔になる気孔があり,これを開閉して呼吸する。足裏は平らで黄白色。高温多湿のときはい回るが,とくに夜間に活動し,野菜や花苗などを食害する。
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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