Leucosia anatum

Leucosia anatum, also known as the pebble crab, is a species of crab in the family  Leucosiidae.

Description
This species has a strongly convex, elongate carapace. Its outline is somewhat rhomboidal. The front edge of the carapace is slender and obtusely triangular, with a pointed postorbital that points upward at an oblique angle. It has stout ambulatory legs, with each section being cylindrical and fairly smooth.

Distribution
This species is known to occur in the following locations:
 * Madagascar
 * Mauritius
 * Persian Gulf
 * Pakistan
 * Sri Lanka
 * Andaman Islands
 * Mergui Archipelago
 * Japan: multiple locations
 * Korea
 * Taiwan
 * China in the sea around Guangdong
 * Gulf of Tonkin
 * Philippines: south of Manila Bay
 * Indonesia: Ambon (type locality)
 * Australia: multiple location
 * New Caledonia: Ilot Maitre
 * Fiji