Reithrodontomys brevirostris Goodwin, 1943 . Am. Mus. Novit., 1231:1.

TYPE LOCALITY: Costa Rica, Alajuela, canyons above Villa Quesada, 5000 ft. (1524 m) .

DISTRIBUTION: N.C. Nicaragua; C. Costa Rica.

COMMENT: Subgenus Aporodon; see Hooper, 1952, Misc. Publ. Mus. Zool. Univ. Mich., 77:1 -255. Includes nicaraguae; see Jones and Genoways, 1970, Occas. Pap. W. Found. Vert. Zool., 2: 10.

ISIS NUMBER: 5301410008047001001.