A new species belonging to the genus Hypocolpus, H. pararugosus, is described after specimens from New Caledonia and Sri Lanka. It had, until now, been confused withH. rugosus (Henderson, 1893). The comparison of this species with closely related ones leads to the elevation of the subspecies rugosus stenocoelus Guinot-Dumortier, 1960, to full species rank.
Crustacea, Decapoda, Brachyura, Xanthoidea, Xanthidae, deep water, Pacific Ocean, New Caledonia, new species