Sand Fiddler Crabs

Description:

Atlantic sand fiddler crabs grow to approximately 1 inch carapace length. Males are easily differentiated from females in that females have chelae (claws) of equal size, while males have unequal claws, one being greatly enlarged as shown in the photo above. Carapace is somewhat rectangular, and is white to gray or tan in color. The center of the carapace is marked with a bright patch of pink or purple, and the sides are mottled in shades of gray or brown. Legs are typically orange nearest the body, with outer segments being brown or gray in color.

Habitat:

Atlantic sand fiddler crabs are the most common crabs in the sandy shorelines of protected beaches, impoundments, and salt marshes. They are found from the water's edge up to the sand or mudflats along the shoreline. Fiddler crabs create tiny, sometimes elaborate burrows for mating, sleeping, refuge, and “hibernating” during winter. Burrows can be 2 feet deep.