Blue Land Crab (Cardisoma guanhumi)
Mark E. Hostetler, Frank J. Mazzotti, and Amy K. Taylor
The giant land crab is the largest of Florida's semi-terrestrial crabs. This animal can measure up to 6 in (15 cm) across its carapace (Figure 1). In its juvenile form, the crab is a dark brown, purple, or orange in color. As an adult, it is a bluish-gray color. Females sometimes appear light gray or white. One claw is larger than the other and the walking legs are sparsely hairy.