Black-wristed deer mouse

The black-wristed deer mouse (Peromyscus melanocarpus) is a species of rodent in the family Cricetidae. It is found in the 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.