36 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



times, 19 thirty-five times, 20 forty-nine times, 21 thirty-nine 

 times, 22 twenty times, 23 ten times, 24 four times, 25 four 

 times, and 26 once. 



29. Charina bottae bottae (Blainville) 



No. 37998 is a female boa of this species which was found 

 at Glenbrook, Douglas County, Nevada, August 25, 1913. 

 The scales are in 47 rows, gastrosteges 207, urosteges 33, 

 supralabials 9-10, infralabials 13-12, loreal 1-1. 



30. Coluber constrictor mormon (Baird & Girard) 



The only racer of this kind secured in Nevada is a male, 

 No. 37991. It was caught in Snell Canyon, Ruby Mts., Elko 

 County, July 12, and has scales in 17 rows, gastrosteges 172, 

 urosteges 93, supralabials 7-7, infralabials 8-8, preoculars 1-1, 

 postoculars 2-2, loreal 1-1, temporals 2+2+2-2+2+2. 



The fact that more than half the specimens of the yellow- 

 bellied racer taken west of the Rocky Mountains have eight 

 labials, while those secured farther east usually have seven, 

 causes us to continue to regard them as distinct subspecies. 

 The oldest name applied to the western subspecies appears to 

 be Coluber mormon Baird & Girard, 1852, based upon a young 

 specimen from the Valley of the Great Salt Lake, Utah. 



31. Coluber flagellum piceus (Cope) 



One female racer shot at Las Vegas, Clark County, May 1, 

 1913, is No. 36717. The scales are in 17 rows, gastrosteges 

 195, urosteges 111, supralabials 8-9, infralabials 10-9, preocu- 

 lars 2-2, postoculars 2-2, loreal 1-1, temporals 2+2-2+3. 



32. Coluber taeniatus taeniatus (Hallowell) 



No. 36976 was secured at Caliente, Lincoln County, Nevada, 

 May 4-8, 1913. It is a female with scales in 15 rows, gastros- 

 teges 211, urosteges 134, supralabials 8-8, infralabials 10-10, 

 preoculars 2-2, postoculars 2-2, loreal 1-1, temporals 2+2+2- 

 2+2+2. 



No. 40505 was found July 4, 1916, on the ground under 

 thick brush in a little canon near Sutcliffe, Pyramid Lake, 



