Prawn

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.

shrimp-like decapod crustacean having two pairs of pincers; most are edible

any of various edible decapod crustaceans