FIELD BOOK OF MAMMALS 



Spectabilis Group 



Large Kangaroo Rat. — Dipodomys spectabilis spectabilis 

 Merriam. Plate XXVI. 

 Size very large; tail very long, tipped with white; colora- 

 tion rich; toes four in number. Upperparts ochraceous 

 buff, sprinkled with black; sides brighter than back. Total 

 length, 14 inches; tail vertebras, 8.5 inches; hind foot, 2.1 

 inches. Found in western Texas east to eastern edge of 

 the Pecos Valley, north into Arizona and New Mexico. 



Bailey Kangaroo Rat. — Dipodomys spectabilis baileyi Goldman. 

 Larger than typical spectabilis, color slightly paler. Upper- 

 parts pinkish buff, sprinkled with black, brightest and 

 clearest on sides; tail pure black all around near tip, tip 

 white. Total length, 15.2 inches; tail vertebrae, 11.2 inches; 

 hind foot, 2.3 inches. Found from northwestern New 

 Mexico to western Texas. 



Phillipsii Group 



Loring Kangaroo Rat. — Dipodomys elator Merriam. 



Size medium; toes four in number; ears small; black facial 

 markings well defined. Upperparts clay color, sprinkled 

 with dark-tipped hairs. Total length, 11. 6 inches; tail ver- 

 tebrae, 6,8 inches; hind foot, 1.8 inches. Found in northern 

 Texas. 



Merriami Group 



Merriam Kangaroo Rat. — Dipodomys merriami merriami 

 Meams. 

 vSize small; four toes present; tail with dusky tuft, dorsal 

 and ventral stripes present ; plantar stripe present but pale. 

 Upperparts light ochraceous buff, sprinkled with dusky in 

 mid-dorsal region. Total length, 9.9 inches; tail vertebrae, 

 5.8 inches; hind foot, 1.54 inches. Found in "the Mohave 

 Desert region. Ranges north in Inyo County through 

 Death Valley, and through Owens Valley as far as Inde- 

 pendence; west, in Kern County, over the pass at the head 

 of Kelso Creek and down into the valley of the South Fork 

 of the Kern River as far as Weldon; south, along the 

 Colorado River, as far as Blythe; east into Nevada and 

 across the Colorado River into Arizona. Altitudinal 

 range, — 200 to 7000 feet. Life-zone, Lower Sonoran." 

 (Grinnell) 



El Paso Kangaroo Rat. — Dipodomys merriami ambiguus 

 (Merriam). 

 Resembling typical merriami, but ears smaller, tail shorter, 

 and hind feet larger. Upperparts buffy drab, mixed with 

 black-tipped hairs, darkest on rump, brightest on sides. 

 Total length, 9.3 inches; tail vertebrae, 5.3 inches; hind foot, 

 1.3 inches. Found in the vicinity of El Paso, Texas. 



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