The Colorful Land Crab Gecarcinus Quadratus, Also Known As The Halloween Crab, Rests On A Log On A Costa Rican Beach. Stock Image

The colorful land crab Gecarcinus quadratus, is also known as the red land crab, whitespot crab, halloween crab, moon crab, halloween moon crab, mouthless crab or harlequin land crab. They are found in mangrove, sand dunes and rainforest along the Pacific coast from Mexico south to Panama. The Holloween Crab has a pair of largely purple claws, red-orange legs, and an almost entirely black carapa