Vol. V] VAN DEX BURGH AND SLEVIN— REPTILES OF UTAH 



i07 



30. — Bascanion constrictor vetustum (Baird & Girard). 



This snake evidently is common in Utah. We have secured 

 30 specimens. Thirteen of these (Nos. 38426 to 38438) are 

 from Provo Canyon, Wasatch Mountains, Wasatch County, 

 May 19, to June 20, 1913. The other 17 are from Fort Doug- 

 las, Salt Lake County. Variation in scale characters is shown 

 in the following table : 



32. — Bascanion taeniatum (Hallowell). 



Four specimens from Fort Douglas, Salt Lake County, have 

 the following scale counts : 



33. — Pituophis catenifer deserticola Stejneger. 



Twenty-eight of these snakes are at hand. No. 38755 was 

 secured in Provo Canyon, Wasatch Mountains, Wasatch 



