whelk - large carnivorous marine gastropods of coastal waters and intertidal regions having a strong snail-like shell

seafood - edible fish (broadly including freshwater fish) or shellfish or roe etc

seasnail - any of several creeping marine gastropods with a spirally coiled shell: whelks; tritons; moon shells; neritids

Buccinidae, family Buccinidae - whelks

whelk - large marine snail much used as food in Europe

snail - gather snails; "We went snailing in the summer"