is a specific kind of: shellfish.

is a broader term that covers: American lobster, Maine lobster, Northern lobster | European lobster | langoustine, Norwegian lobster, scampo | lobster tail.

has as a part: coral | tomalley.

is a part of: true lobster.

is a specific kind of: decapod, decapod crustacean.

is a broader term that covers: true lobster | Nephrops norvegicus, Norway lobster | crawfish, crayfish, langouste, rock lobster, sea crawfish, spiny lobster.

has as a part: pleopod, swimmeret.

is a member of: Reptantia, suborder Reptantia.