Order Rodentia - Family Muridae Author Guy G. Musser Author Michael D. Carleton text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 501 755 book chapter http://doi.org/10.5281/zenodo.7353098 1-56098-217-9 7353098 Neohydromys fuscus Laurie, 1952 . Bull. Br. Mus. (Nat. Hist.) Zool., 1:311 . TYPE LOCALITY: Papua New Guinea , Chimbu Prov. , N slopes Mt Wilhelm, 9000- 10,000 ft . DISTRIBUTION: Papua New Guinea ; scattered localities from Mt Wilhelm east to highlands of Wau region (see map in Flannery, 1990b :l 80). COMMENTS: Phallic morphology similar to that characterizing Mayermys (Lidicker, 1968) . Certain derived cranial and dental features unite Neohydromys , Mayermys , and Pseudohydromys as close relatives (e.g., all share the derived pattern of cephalic arterial circulation; Musser and Heaney, 1992 ).