GRASSHOPPER MOUSE 



Found in "Colorado River Valley in western Arizona; east- 

 ward along tributary streams to Big Sandy Creek, Signal, 

 and Phoenix. Doubtless occurs also in northwestern 

 Sonora." (Hollister) 



Desert Grasshopper Mouse.- — Onychomys torridus pulcher 

 (Elliot). 

 Smallest of the Grasshopper Mice; color very pale. Upper- 

 parts pale pinkish cinnamon with very little dark wash along 

 back; ear tufts white, conspicuous (winter); rest of pelage 

 essentially as in perpallidus except for slightly paler shades. 

 Total length, 5.5 inches; tail vertebrae, 1.9 inches; hind foot, 

 .78 inch. Found in "Mohave and Colorado Deserts, Cali- 

 fornia, and Lower California, Mexico. Known by speci- 

 mens from Granite Springs and Needles on the north to 

 Seven Wells, Lower California, on the south; and from the 

 Colorado River bottoms westward to Antelope Valley and 

 through San Gorgonia Pass to Cabezon station." (Hollister) 



Long-tailed Grasshopper Mouse. — Onychomys torridus longi- 

 caudus (Merriam). 

 Darker than pulcher; larger than perpallidus, with shorter 

 tail, hind foot, and ear. Upperparts and rest of pelage 

 essentially as in perpallidus. Total length, 5.6 inches; tail 

 vertebrse, 2.0 inches; hind foot, .8 inch; ear from notch (dry 

 skin), .52 inch. Found in "Southwestern Utah, north- 

 western Arizona north of the Colorado River, southern 

 Nevada, and the adjacent desert mountain region of Inyo 

 and Mono Counties, California. North in western Nevada 

 to Carson Sink ; west in California to Kearsarge Pass and to 

 the Argus Mountains." (Hollister) 



Owens Lake Grasshopper Mouse. — Onychomys torridus clarus 

 Hollister. 

 Resembling longicaudus, but brighter colored. Upperparts 

 from bright pinkish cinnamon to pinkish buff, very little 

 sprinkling of darker hairs on back, pelage dark neutral 

 gray basally; creamy white ear tufts not very conspicuous; 

 tail whitish above and below except for narrow, indistinct 

 median stripe of grayish brown for basal two-thirds above; 

 underparts white. Total length, 5.6 inches; tail vertebrae, 

 2 inches; hind foot, .8 inch. Found in "Vicinity of Owens 

 Lake, Coso Mountains, and Salt Wells Valley, Inyo County, 

 California." (Hollister) 



Tulare Grasshopper Mouse; San Joaquin Grasshopper 

 Mouse. — Onychomys torridus tularensis Merriam. 

 Grayish drab in color. Upperparts from light drab with 

 light wash of pinkish to grayish cinnamon, finely sprinkled 

 with dark brown ; grayish white ear tufts very inconspicuous ; 

 a faint, narrow lateral line of light pinkish buff; tail sharply 

 bicolor, grayish brown above, tip, and underside white; 

 underparts white; pelage above and below, except on chin 

 and throat, gray at base. Total length, 5.8 inches; tail 

 vertebrae, 2.1 inches; hind foot, .83 inch. Found in "Upper 



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