Vot. IIT] GRINNELL—MAMMALS OF CALIFORNIA 341 
Range—Lower Sonoran zone in Death Valley and adjacent 
parts of the desert floor, Inyo County (Elliot, Field Col. Mus., 
zool. ser., 3, 1904, p. 303). 
Dipodomys merriami nevadensis Merriam 
Nevada Kangaroo Rat 
Original description—Dipodomys merriami nevadensis Mer- 
riam, Proc. Biol. Soc. Wash., 9, June 21, 1894, pp. 111, 1: 
Type locality—Pyramid Lake, Washoe County, Nevada. 
Range—Lower and Upper Sonoran zones along the east- 
central border of the state, in Mono and Inyo counties, south 
into Owens Valley (Mus. Vert. Zool.). 
Dipodomys merriami kernensis Merriam 
Kern Valley Kangaroo Rat 
Original description—Dipodomys merriami kernensis Mer- 
riam, Proc. Biol. Soc. Wash., 20, July 22, 1907, pp. 77, 78. 
Type locality—Onyx, Kern County, California. 
Range—Lower Sonoran zone on west slope of Sierran 
divide in Kern Valley, Kern County: Onyx, Weldon and 
Kelso Creek (Mus. Vert. Zool.). 
Dipodomys merriami nitratoides Merriam 
Tipton Kangaroo Rat 
Original description—Dipodomys merriami nitratoides Mer- 
riam, Proc. Biol. Soc. Wash., 9, June 21, 1894, p. 112. 
Type locality—Tipton, Tulare County, California. 
Synonym—Tulare Pocket Rat. 
Range—Lower Sonoran zone in bed of southern San Joaquin 
Valley, chiefly if not altogether on the west-side alkali plains, 
from near Tulare Lake to Bakersfield (Mus. Vert. Zool.). 
Dipodomys merriami exilis Merriam 
Fresno Kangaroo Rat 
Original description—Dipodomys merriami exilis Merriam, 
Proc. Biol. Soc. Wash., 9, June 21, 1894, p. 113. 
Type locality—Fresno, San Joaquin Valley, California. 
Synonym—Least Pocket Rat. 
Range—Known only from the original description, as above. 
