Megadontomys cryophilus Musser 1964

Megadontomys cryophilus Musser 1964, Occas. Pap. Mus . Zool., Univ. Michigan, 636: 13.

Type Locality: México, Oaxaca, Distrito de Ixtlán, 13 mi (21 km) NE Llano de las Flores, south slope Cerro Pelón, 9200 ft (2804 m).

Vernacular Names: Oaxacan Big-toothed Deermouse.

Distribution: Cloud and pine-oak forests in highlands of N Oaxaca, México.

Conservation: IUCN – Lower Risk (nt).

Discussion: Named as a subspecies of Peromyscus thomasi . Citing morphological traits and genetic differentiation reported by Werbitsky and Kilpatrick (1987), Carleton (1989) arranged cryophilus as a species. Recent elevational surveys by Briones-Salas et al. (2001) in the Sierra Mazteza and Sánchez-Cordero (2001) in the Sierra Mixteca amplify the geographic occurrence of this species in Oaxaca.