Fly River water rat

The Fly River water rat, Leptomys signatus, is a species of rodent in the family Muridae. It was described by Tate and Archbold in 1938 from a holotype collected at Sturt Island Camp, on the northern bank of the Fly River near the Fairfax Islands in the Western Division of Papua, at sea level. The species is found only in Papua New Guinea. Its natural habitat is subtropical or tropical dry forest, and it is threatened by habitat loss. The Mammal Diversity Database places it in the subfamily Murinae, tribe Hydromyini and genus Leptomys, in the Australasian biogeographic realm, records its IUCN Red List status as Least Concern, and gives Fly River Leptomys as another common name.