Some porcelain crabs (Decapoda: Anomura) from the Andaman Sea, India, with an identification key to Indian porcellanids

Abstract The present study provides systematic accounts of three porcellanid species collected onboard Fishery Oceanographic Research Vessel “Sagar Sampada” from the Andaman Sea. The record of Petrolisthes scabriculus (Dana, 1852) confirms the occurrence of this species in Indian waters. Polyonyx biunguiculatus (Dana, 1852) is reported for the first time from India. Porcellanella haigae Sankarankutty, 1963, previously described from the Gulf of Mannar, is recorded for the first time from the Andaman Sea. An updated identification key to all the 33 species of porcellanid crabs known from the Indian Exclusive Economic Zone is also provided.