Leptomys ernstmayri Rümmler, 1932 . Das Aquarium, 6:134.

TYPE LOCALITY: Papua New Guinea, Morobe Prov., Huon Peninsula, Saruwaged Mts, Ogeramnang, 1785 m .

DISTRIBUTION: Papua New Guinea (above 1250 m in Owen Stanley Range from Mt Dayman west to Kratke Mts and Purosa region in Eastern Highlands Prov., then northeast to mountains on Huon Peninsula; probably occurs farther west in Papuan Central Cordillera, but limits unknown); Irian Jaya (Arfak Mts only; limits unknown).

COMMENTS: A distinctive species distinguished from L. elegans by the diagnostic and distributional traits enumerated by Rümmler (1932). It is endemic to mountain rainforest and in Owen Stanley Range replaces L. elegans at elevations above 1000 m.