1. (n.) In a general sense, any hat shaped, or conical, gastropod shell.

2. (n.) Any one of many species of marine shellfish of the order Docoglossa, mostly found adhering to rocks, between tides.

3. (n.) Any species of Siphonaria, a genus of limpet-shaped Pulmonifera, living between tides, on rocks.

4. (n.) A keyhole limpet. See Fissurella.

Chilopoda Chordata Dungeness crab Echiuroidea Ectoprocta Entoprocta Japanese crab Monoplacophora Nemertinea Phoronidea adherent adhesive barnacle blue point bramble brier bulldog burr cement clam coquillage crab crawdad crawfish crayfish decal decalcomania glue gunk langouste leech littleneck clam lobster molasses mucilage mussel oyster paste periwinkle plaster prawn prickle quahog remora scallop shellfish shrimp snail soft-shell crab steamer sticker syrup thorn whelk