any animal lacking a backbone or notochord; the term is not used as a scientific classification

gastropods; bivalves; cephalopods; chitons

hard outer covering or case of certain organisms such as arthropods and turtles

meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)

burrowing marine mollusk

a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes

primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates

marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together

marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles

gastropods; bivalves; cephalopods; chitons

hard outer covering or case of certain organisms such as arthropods and turtles

meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean)