A revision of Neosesarma (Crustacea: Brachyura: Sesarmidae) with the description of a new species

The Indo-west Pacific mangrove crab genus Neosesarma Serène & Soh, 1970, is revised. A new species, N. hirsutus, is described from northern Australia. The distribution of N. rectipectinatum is extended south to northern Australia and southern Papua. All species can be separated by differences in male claw tuberculation, the length and number of teeth of the pectinated crest on the dorsal surface of the cheliped palm, and the shape of the male first gonopods.