Cypraea, the cowrie. About 80% of all known mollusc species are gastropods.
Molluscs (or mollusks) are an important phylum of invertebrate animals. Most of them are marine. They have huge numbers in-shore, that is, in shallow wahe largest marine phylum, with about 85,000 living species, 23% of all named marine organisms. They also occur in freshwater and on land.
Mollusks are extremely varied: they have great diversity. That may be why there is no word in English for the phylum as a whole. "In an evolutionary sense, mollusks are plastic material". They have much more variety than their ancient rivals, the brachiopods.