Mollusca (mollusks)

Typical Examples
Snails, oysters, octopuses, nudibranchs, natullus

Main features:
Soft-bodied coelomates whose bodies are divided into three parts: head-foot, visceral mass, and mande; many have sh.ells; almost all possess a unique rasping tongue, called a radula; 35,000 species are terrestrial.