agate snail

...Originating from central East Africa, it spread rapidly from India and Southeast Asia to the Pacific islands in the 20th century, becoming a pest that damages crops and fruit trees. Its shell is egg-cone shaped, with purple-brown and yellowish-white vertical stripes on the surface, so it is called an agate snail in English. It is also called a giant snail because its shell is usually about 10 cm high and 5.5 cm wide. In Japan, it has invaded Amami, Okinawa, and Ogasawara, causing damage. ...

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…東アフリカ中部原産で，20世紀に入って急速にインド，東南アジアから太平洋の諸島に広がり，農作物や果樹を食害する害貝となった。殻は卵円錐形，殻表に紫褐色と黄白色の縦斑があるので英名でagate snail(メノウマイマイの意)，また通常，殻の高さ10cm，太さ5.5cmくらいになるのでgiant snailという。日本では奄美，沖縄および小笠原に侵入し害を与えている。…

※「agate snail」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