 The type locality is near Chihuahua, Chihuahua, Mexico.Some 26 species names have been applied to populations of the Mexican woodrat and are now considered synonyms.The animal averages a bit over 300 mm in total length and weighs 140 to 185 g. Their diets tend to be generalist, with a wide variety of berries, vegetation, nuts, acorns, and fungi, though foliage seems to make up the major food class.