Callinectes sapidus (from the ancient greek κάλλος,"beautiful" + nectes, "swimmer", and latin sapidus, "savory"), the blue crab, atlantic blue crab, or regionally as the chesapeake blue crab, is a species of crab native to the waters of the western atlantic ocean and the gulf of mexico, and introduced internationally. c. sapidus is of considerable culinary and economic importance in the united states, particularly in louisiana, the carolinas, the chesapeake bay, delaware, and new jersey. it is the maryland state crustacean and the state's largest commercial fishery. due to overfishing and environmental pressures some of the fisheries have seen declining yields, especially in the chesapeak...

Source: Wikipedia