Lorentzimys Jentink, 1911 . Nova Guinea, 9:166.

TYPE SPECIES: Lorentzimys nouhuysi Jentink, 1911 .

COMMENTS: Member of the New Guinea Old Endemics (Musser, 1981c). Photograph, distributional and biological information summarized by Flannery (1990b:197). Phallic morphology described by Lidicker (1968). Analyses of phallic traits (Lidicker and Brylski, 1987) indicated Lorentzimys and Leptomys are related, a hypothesis also supported by dental features and shared derived cephalic arterial pattern.