Answer: molluscs

AnswerCrossword Clue
molluscsAn invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses. They have a soft, unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell
molluscsMOLLUSC, an animal belonging to the large phylum of invertebrates, also MOLLUSK