Dipodops longipes Merriam, N. Amer. Fauna, 3:72, September 11, 1890.
Perodipus ordii, Allen, Bull. Amer. Mus. Nat. Hist., 5:71, April 28, 1893 (part—the part from Bluff, Utah).
Cricetodipus longipes, Trouessart, Catalogus Mammalium, 1:581, 1897.
Perodipus longipes, Elliot, Field Columbian Museum, Zool. Ser., 2:239, 1901.
Perodipus ordii longipes, [Goldman], Proc. Biol. Soc. Washington, 30:113, May 23, 1917.
Dipodomys ordii longipes, [Grinnell], Journ. Mamm., 2:96, May 2, 1921.
Dipodomys ordii cleomophila [Goldman], Journ. Washington Acad. Sci., 23:469, October 15, 1933, type from 5 miles northeast of Winona, Coconino County, Arizona.
Type.—Male, no. 17703/24639, U. S. Nat. Mus. Dept. Agric. Coll.; foot of Echo Cliffs, Painted Desert, Arizona; obtained on September 22, 1889, by C. Hart Merriam, original no. 512.
Range.—Southeastern Utah, northeastern Arizona to immediately south of the Little Colorado River, northwestern New Mexico and extreme southwestern Colorado; marginal occurrences are: in Arizona, 20 mi. NE Lees Ferry, Foot Echo Cliffs in Painted Desert, 5 mi. NE Winona, Winslow and Holbrook; in New Mexico, 10 mi. SW Quemado, Riley, Laguna, Chama Canyon and Shiprock.
Diagnosis.—Size large (see measurements). Color dark, entire dorsal surface between (16") Pinkish Cinnamon and Cinnamon-Buff, purest on sides and flanks with but slight suffusion of black on upper parts; cheeks white; arietiform markings, pinnae of ears, plantar surfaces of hind feet, dorsal and ventral stripes of tail, brownish. Skull large; rostrum long and narrow; nasals long and thin; auditory bullae greatly inflated; styloid processes project on ventral surface of auditory bullae beyond middle of external auditory meatus.