Reithrodontomys microdon Merriam, 1901 . Proc. Wash. Acad. Sci., 3:548.

TYPE LOCALITY: Guatemala, Huehuetenango, Todos Santos, 10,000 ft. (3048 m) .

DISTRIBUTION: S. Guatemala to C. Chiapas; N.C. Oaxaca; N.E. Michoacan to Distrito Federal (Mexico).

COMMENT: Subgenus Aporodon; see Hooper, 1952, Mise. Publ. Mus. Zool. Univ. Mich., 77:1 -255.

ISIS NUMBER: 5301410008047012001.