VouX] 



VAN DENBURGH— VARIATION IN GOPHER-SNAKES 



23 



of those undamaged. The postoculars are 3-3 in twelve, or 

 52% ; 2-2 in ten, or 43% ; and 2-3 in one, or 4%. The tem- 

 porals are 3-4 in ten, or 43% ; 4—4 in seven, or 31% ; 4—5 in 

 three, or 13% ; 3-3 in one, or 4% ; 2-3 in one, or 4% ; and 3-5 

 in one, or 4%. The supralabials are 8-8 in thirteen, or 56% ; 

 8-9 in five, or 22% ; and 9-9 in five, or 22%. The infralabials 

 are 13-13 in eight, or 38% ; 12-13 in five, or 24% ; 12-12 in 

 four, or 18% ; 11-11 in two, or 9% ; 11-12 in one, or 5% ; and 

 13-14 in one, or 5%. The scale-rows are 29 in fifteen, or 56% ; 

 31 in seven, or 26% ; and 27 in five, or 18% ; the average is 29 

 rows. The gastrosteges vary in number from 223 to 241, 

 males having from 227 to 241, females from 223 to 240; the 

 average in twenty-two males is 233, in five females, 235. The 

 urosteges vary from 55 to 71, males having from 58 to 71, 

 females from 55 to 62; the average in twenty-three males is 

 66, in five females, 60. 



The dark blotches between head and anus in twenty-nine 

 specimens vary from 50 to 68, the average being 58. On the 

 tail they vary from 14 to 20, and average 16.5. The counts of 

 the blotches are given in full below. 



Distribution. — Specimens of this subspecies are at hand from 

 Thompson, Grand County, Wasatch Mountains, Wasatch 

 County, and Fort Douglas, Salt Lake County, Utah. 



Remarks. — Three snakes from Boise, Ada County, and 

 Blue Lakes, Twin Falls County, Idaho, and one from Wallula, 



