About
Small, thin snail with a high-pointed spire. Adult shells have 7-8 whorls. Juvenile shells have fewer whorls and a pronounced keel. The shell is white, off-white, yellow or pale brown, with a colour pattern that may include dark brown bands or darker blotches and streaks. The animal is usually grey to black.This species is native to Europe. It occurs, mostly on the coast, from north Portugal to the northwestern Mediterranean area. It has however been widely introduced in other countries including Australia. Usually lives in coastlands, in or near sandy habitats. They lay eggs of about 1mm in size. Because of their small size they are not easily detected and can very rapidly reproduce to become a serious threat to crops in their habitat.