A new species of Esanthelphusa (Crustacea : Brachyura : Parathelphusidae) from Laos, and a redescription of Potamon (Parathelphusa) dugasti Rathbun, 1902

摘要

A new species of freshwater parathelphusid crab belonging to the genus Esanthelphusa is described from Vientianne, Laos. It differs from the type species, Esanthelphusa dugasti (Rathbun, 1902), as well as other congeners mainly by carapace and male first gonopod characters. A redescription of Potamon (Parathelphusa) dugasti Rathbun, 1902, is also provided.