JUMPING MOUSE 



pelage blacker along back and more yellow on sides. Total 

 length, 9.8 inches; tail vertebras, 5.9 inches; hind foot, 1.3 

 inches. Found in "Rocky Mountain region from northern 

 New Mexico northward to Henry House, Alberta." (Preble) 



Saskatchewan Jumping Mouse. — Zapus princeps minor 

 Preble. 

 Smaller than typical princeps, dorsal band darker. Upper- 

 parts yellowish brown; dorsal band with hea\'y admixture 

 of black; underparts tinged with salmon. Total length, 

 8.8 inches; tail vertebrae, 5.2 inches; hind foot, 1.2 inches. 

 Found in "Plains of Saskatchewan." (Preble) 



Blue Mountains Jumping Mouse. — Zapus princeps oregonus 

 Preble. 

 Sides lighter colored than in typical princeps. Upperparts 

 yellowish brown, sprinkled with black, less black along back 

 and on head than in typical princeps; underparts clear 

 white; ears distinctly edged with whitish. Total length, 10 

 inches; tail vertebrae, 6.0 inches; hind foot, 1.3 inches. 

 Found in "Blue Mountains of Oregon." (Preble) 



Warner Mountain Jumping Mouse. — Zapus major Preble. 

 Resembling princeps but larger. Upperparts ochraceous 

 buff, sprinkled with black; tail indistinctly bicolor; feet 

 dirty white; underparts whitish. Total length, 10.2 inches; 

 tail vertebras, 6.2 inches; hind foot, 1.4 inches. Found only 

 in the Warner Mountains, Lake County, Oregon. 



Nevada Jumping Mouse. — Zapus nevadensis Preble. 



"Size rather large; color light." (Preble) Sides light 

 ochraceous buff lightly sprinkled with black; dorsal band 

 mixed pale yellowish brown and black ; cheeks light-colored, 

 almost white; underparts clear white. Total length, 9.8 

 inches; tail vertebrae, 6.0 inches; hind foot, 1.3 inches. 

 Found only in the Ruby Mountains, Elko County, Nevada. 



Northwest Jumping Mouse. — Zapus trinotatus trinotatus 

 Rhoads, 

 Large in size ; bright in color. Upperparts dark ochraceous 

 buff, plentifully sprinkled with black; dorsal band well de- 

 fined, mixed black and dark ochraceous buff; tail sharply 

 bicolor, dusky brown and yellowish white; outer sides of 

 legs dusky; underparts white, frequently marked with 

 fulvous. Total length, 9.9 inches; tail vertebras, 6.1 inches; 

 hind foot, 1.34 inches. Found in " Coast region of southern 

 British Columbia, Washington (including Cascades), 

 Oregon (west of western base of Cascades), and northern 

 California, south to Humboldt Bay." (Preble) 



Allen Jumping Mouse. — Zapus trinotatus alleni (Elliot). 

 Paler than typical trinotatus. Upperparts pale ochraceous 

 buff interspersed with black; dorsal band distinctly lighter 

 in tone than in typical trinotatus; tail light grayish brown 

 above, yellowish white below, often tipped with white; 

 underparts white, without any fulvous. Total length, 9.6 

 inches; tail vertebrae, 6.0 inches; hind foot, 1.3 inches, 



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