Crustaceans
American lobster
Homarus americanus
The American lobster is a big-clawed crustacean of the northwest Atlantic and the heaviest on record. Its claws, size, diet, molting, colors and long life.
Animal group · 5 species
Crustaceans
Mostly aquatic animals with a hard outer shell and jointed legs: crabs, lobsters, shrimp, krill and woodlice.
Species profiles
Crustaceans
Atlantic blue crab
Callinectes sapidus
The Atlantic blue crab is a swimming crab of Chesapeake Bay and the Gulf of Mexico, with blue claws and paddle legs. Its size, diet, molting and life cycle.
Crustaceans
Common pill bug
Armadillidium vulgare
The common pill bug is a land crustacean, not an insect, that rolls into a ball and eats dead leaves. Facts on its looks, range, diet, breeding and lifespan.
Crustaceans
Japanese spider crab
Macrocheira kaempferi
The Japanese spider crab has the longest legs of any arthropod, spanning up to 3.7 m (12 ft). Its size, deep home off Japan, diet, camouflage and life cycle.
Crustaceans
Peacock mantis shrimp
Odontodactylus scyllarus
The peacock mantis shrimp is a colorful Indo-Pacific reef crustacean with a club strike of up to 23 m/s and complex eyes. Facts on size, diet, burrows and life.
