title: Parathelphusa pardus, a new species of lowland freshwater crab from swamps in central Sumatra, Indonesia (Crustacea: Brachyura: Gecarcinucidae).
abstract: A new species of gecarcinucid freshwater crab of the genus Parathelphusa H. Milne Edwards, 1853, is described from freshwater swamp habitats in Pekanbaru, Riau Province, in central-eastern Sumatra, Indonesia. Parathelphusa pardus sp. nov., has a very distinctive colour pattern, and in this respect, resembles P. maindroni (Rathbun, 1902) from Sumatra and Peninsular Malaysia; P. batamensis Ng, 1992, from Batam Island, Indonesia; P. reticulata Ng, 1990, from Singapore; and P. oxygona Nobili, 1901, from western Sarawak. It can be distinguished from these species and congeners by a suite of carapace, ambulatory leg, thoracic sternal and most importantly, male first gonopod characters.
authors.affiliation: Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Republic of Singapore.; Email: peterng@nus.edu.sg.
authors.forename: Peter K L
authors.initials: PK
authors.lastname: Ng
authors.affiliation: University of Riau, Kota Pekanbaru, Riau, Sumatra, Indonesia; Email: unknown.
authors.forename: Rikhi
authors.initials: R
authors.lastname: Riady
authors.affiliation: University of Riau, Kota Pekanbaru, Riau, Sumatra, Indonesia; Email: unknown.
authors.forename: Windarti
authors.initials: W
authors.lastname: Windarti
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D003386:Brachyura / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D017753:Ecosystem; D005260:Female; D007214:Indonesia; D008297:Male; D009929:Organ Size; D053833:Wetlands