WESTERN POCKET GOPHER 



Total length, males, 9.0 inches, females, 8.6 inches; tail 

 vertebrae, males, 2.7 inches, females, 2.6; hind foot, males, 

 1.2 mches, females, i . i . Known only from ' 'White Salmon,' 

 gorge of the Columbia, KHckitat County, Washington.'' 

 (Bailey) 

 Black Pocket Gopher. — Thomomys niger Merriam. 



Most resembling typical douglasii, but black in color. 

 ''Upperparts uniform glossy black with purple and green 

 iridescence; underparts duller and more plumbeous; feet and 

 distal portion of tail white. Young, sooty black. ' ' (Bailey) 

 Total length, males, 9.0 inches, females, 8.6; tail vertebrse, 

 males, 3.2 inches, females, 2.8; hind foot, males, 1.2 inches^ 

 females, 1.2. Found in "Coast region of west-central 

 Oregon." (Bailey) 



Monticola Group 



Characterized by ears relatively large and pointed; mammae 

 in four pairs (inguinal, 2-2; pectoral, 2-2). 



California Mountain Pocket Qo^her. —Thomomys monticola 



■monticola Allen. 

 vSmall in size, ears large and pointed, feet and claws slender. 

 Upperparts (winter) dull hazel ; slaty on nose, blackish about 

 ear; tail whitish, sometimes with dusky on upper basal sur- 

 face; underparts dull buffy. Summer pelage brighter in 

 tone, tawny. Total length, males, 8.5 inches, females, 8.4; 

 tail vertebrcE, males, 2.8 inches, females, 2.7; hind foot, 

 males, i.io inches, females, 1.06. Found in "Sierra Nevada 

 of California and Nevada, from Lassen Peak south to Mam- 

 moth Pass." (Bailey) 

 Mazama Pocket Gopher. — Thomomys monticola mazama 

 (Merriam). 

 Darker and more richly colored than typical monticola, but 

 like it in size. Upperparts (summer) bright russet brown ; 

 slaty on nose, blackish about ear, whitish on feet and tail. 

 Underparts warmer buff to ochraceous. Winter pelage un- 

 known. Total length, males and females, 8.2 inches; tail 

 vertebras, 2.6 inches; hind foot, 1.12 inches* Found in 

 "Cascade and Siskiyou Mountains, Ore., south in California 

 to the Trinity Mountains." (Bailey) 

 fellow Pine Pocket Gopher. — Thomomys monticola pinetorum 

 Merriam. 

 Resembling typical monticola, but brighter brown above and 

 with gray on nose and cheeks. Upperparts (summer) yel- 

 lowish hazel (color of yellow-pine bark) ; blackish about ears, 

 slaty to grayish on nose and cheeks, grayish to whitish on 

 feet and tail; underparts buffy. Winter pelage duller than 

 summer. Total length, males, 8.4 inches, females, 8.0; 

 tail vertebras, males, 3.0 inches, females, 2.9; hind foot, 

 males, 1.12 inches, females, i.io. Found in "Mountains 



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