Calappa hepatica grows to a carapace width of about 4 cm (1.6 in); the length is always less than two thirds of its width. The posterior portion of the shell has broad extensions with several blunt teeth on the margin, an… See more

Calappa hepatica is found in the tropical and subtropical Indo-Pacific region, its range extending from the Red Sea to Hawaii, French Polynesia, Cocos Island and northern Australia. Its typical habitat is on the sandy o… See more