(n.) Any one of numerous species of large shrimplike Crustacea having slender legs and long antennae. They mostly belong to the genera Pandalus, Palaemon, Palaemonetes, and Peneus, and are much used as food. The common English prawn is Palaemon serratus.

Dungeness crab Japanese crab blue point clam coquillage crab crawdad crawfish crayfish langouste limpet littleneck clam lobster mussel oyster periwinkle quahog scallop shellfish shrimp snail soft-shell crab steamer whelk