Abstract Four species of sesarmid crabs of the genus Nanosesarma Tweedie, 1950, have been reported from India: Nanosesarma andersoni (De Man, 1888), Nanosesarma batavicum (Moreira, 1903), Nanosesarma jousseaumei (Nobili, 1906), and Nanosesarma minutum (De Man, 1887). In the present study, one more species, Nanosesarma sarii Naderloo and Türkay, 2009 is reported for the first time from India along with the diagnosis and illustrations of the five Indian Nanosesarma species.

Abstract The present paper confirms the occurrence of the sesarmid crab Sarmatium crassum Dana, 1851 in India. The species has so far been recorded from Samoa, Tahiti, New Caledonia, eastern Australia, Philippines, Madagascar, South Africa, Tanzania, and Eritrea (Red Sea). This is the first record of the species from India.