The northern rock mouse (Peromyscus nasutus) 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 found in Mexico and the United States.
References
Musser, G. G. and M. D. Carleton. (2005). Superfamily Muroidea. pp. 894âÂÂ1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.