Scientific name: Homarus americanus

Unchanged: 

The American lobster can be found in the waters off the North Atlantic – ranging from Virginia up through the Canadian Maritimes. Lobsters are aquatic arthropods of the class Crustacea. As such, they have segmented bodies; chitinous exoskeletons (a hard outer shell); and paired, jointed limbs. Examples of other Crustaceans include crabs, barnacles, and shrimp.

Dorsal view of a lobster
Dorsal view.

Taxonomy

Phylum:  Arthropoda

Superclass:  Crustacea

Class:  Malacostraca

Order:  Decapoda

Family:  Nephropidae

Genus:  Homarus

Species:  americanus

ventral view of a lobster
Ventral view.