CRUSTACEANS

animals with a hard shell, jointed body and appendages and gills that live mostly in water. Crabs, lobsters and shrimp are crustaceans. —Handbook for Preclears Glossary (app 9.7.90)

animals with a hard shell, jointed body and appendages and gills that live mostly in water. Crabs, lobsters and shrimp are crustaceans.animals with a hard shell, jointed body and appendages and gills that live mostly in water. Crabs, lobsters and shrimp are crustaceans.