A large rodent recorded on Guadalcanal. HMW describes a grizzled dark-gray back and white underside, with historical records from dry northern lowlands near the coast. The account lists only three original specimens collected in 1886–1888 and says the species may be extinct.
HMW describes a very large body, short fur woolly to the touch but wiry in appearance, a grizzled ash-gray back, and a white underside. The feet are broad and naked, the ears short and silvery pink, and the long tail dark brown.
HMW (2017) reports historical records near the coast in the dry northern lowlands of Guadalcanal.
An extinction-risk assessment has not been added yet.