Callinectes sapidus, or more familiarly known as the Blue Crab, is a crustacean inhabiting the waters of the western Atlantic Ocean and Gulf of Mexico. Maryland advertises the species as its State Crustacean and consequently, it is the subject of an extensive fishery there. The Blue Crab is particularly aggressive and complicated to handle safely. It is hostile and known to react at any movement they determine a threat. The western edge of the Atlantic Ocean from Nova Scotia to...
- The navel or umbilicus.
- In Greek archaeology: A central boss, as on a shield, a bowl, etc.
- A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.