Specimens examined.—Total, 14, all from Chihuahua, as follows: 1 mi. E Samalayuca, 4500 ft., 14 (MVZ).
Dipodomys ordii chapmani Mearns
Dipodomys chapmani Mearns, Bull. Amer. Mus. Nat. Hist., 2:291, February 21, 1890.
Cricetodipus chapmani, Trouessart, Catalogus Mammalium, 1:581, 1897.
Perodipus chapmani, Elliot, Field Columbian Museum, Zool. Ser., 2:237, 1901.
Perodipus ordii chapmani, [Goldman], Proc. Biol. Soc. Washington, 30:113, May 23, 1917.
Dipodomys ordii chapmani, [Grinnell], Journ. Mamm., 2:96, May 2, 1921.
Cotypes.—Male, no. 2400, and female, no. 2398, Amer. Mus. Nat. Hist.; Fort Verde, Yavapai County, Arizona; obtained on January 26, 1887, and 49October 1, 1885, respectively, by Edgar A. Mearns. (Type not seen.)
Range.—Central Arizona from the Grand Canyon of the Colorado River, southeastward to, and probably beyond, Fort Verde; marginal occurrences are: lower end Prespect Valley, Kirkland, Prescott, Camp Verde, Bill Williams Mountain.