This species occurs in the lowlands of southern and extreme south-eastern New Guinea (Indonesia and Papua New Guinea); on Goodenough (Vivigani Plains), Fergusson, and Kiriwina islands (Papua New Guinea); and throughout much of northern Australia (isolated populations occur on North and South Stradbroke Island, Peel, and Groote Islands). The species was introduced to Vanderlin Island. It may also be present on the islands of Normanby and New Ireland, Papua New Guinea (Flannery 1995).