Barnacles , crabs and lobsters belong to which class of marine life ?
Crustacen Urcrustacea Gastric mill Eucrustacea Crustalogy Crustaceans Malacostracology Crustacea Pleuron (crustacean anatomy) Crustacean Masticatory stomach CRUSTACEANS Crustacean Louse Crustacean louse Crustaceology