The black-wristed deer mouse (Peromyscus melanocarpus) is a species of rodent in the family Cricetidae. It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". It is native to Sierras de Zempoaltépec, Juárez and Mazteca, sub-ranges of the Sierra Madre de Oaxaca in southern Mexico, between 1,500 and 2,500 meters elevation.
References
Musser, G. G. and M. D. Carleton. (2005). Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.