Xenocarcinus
Xenocarcinus is a genus of spider crabs in the family Epialtidae. They inhabit soft corals at subtidal zones up to 70 meters in depth in the Indo-West Pacific region, being found in Réunion, Aldabra, the Red Sea, the Persian Gulf, Sri Lanka, the Indo-Malayan Archipelago and Japan. Xenocarcinus conicus and Xenocarcinus tuberculatus crabs were found in Mu Koh Tao, western Gulf of Thailand, associated with gorgonians and wire coral, respectively.