Notiomys Thomas, 1890 . In Milne-Edwards, Mission Sci. Cap. Horn, 1882-3, 6, Mamm., p. 23.

TYPE SPECIES: Notiomys edwardsii Thomas, 1890 .

COMMENTS: Akodontine. Alpha systematics revised by Osgood (1925), who viewed Chelemys and Geoxus as synonyms (see comments under those genera and in Pearson, 1984, and Reig, 1987).