The marine shelled species of gastropod include edible species such as abalone, conches, periwinkles, whelks, and numerous other sea snails which have coiled seashells. There are also a number of families of species such as all the various limpets, where the shell is coiled only in the larval stage, and is a simple conical structure after that.
The word gastropod is from the Greek, gastro meaning stomach and poda meaning foot, hence stomach-foot, a rather anthropomorphic name based on the fact that to humans it seems that snails and slugs crawl on their bellies. In reality, snails and slugs have all their viscera, including their stomach, in a hump on the opposite, dorsal side of the body
Gastropods have a worldwide distribution, in the seas and oceans (about 30,000 species)
|Wikipedia, the free encyclopedia