Old World crayfish, ecrevisse - small crayfish of Europe and Asia and western North America

American crayfish - common large crayfishes of eastern North America

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

crawdaddy, crawfish, crawdad, crayfish - small freshwater decapod crustacean that resembles a lobster

Astacus, genus Astacus - type genus of the family Astacidae; Old World crayfish

crawdad, crawfish, ecrevisse, crayfish - tiny lobster-like crustaceans usually boiled briefly