34. LAMPROPELTIS 745 



these plates are involved in a white ring which ring crosses 

 the occiput and includes the posterior temporals and the 

 last labial plate before joining the white of the throat. The 

 rest of the top and sides of the head are blackish, usually 

 mottled with red or white on the snout. Behind the first 

 white ring is one of black, sometimes incomplete below, fol- 

 lowed by one of red, and in turn by others of black, white, 

 black, red, black, white, and so on, the whole body and tail 

 being encircled by from 25 to 40 white or yellowish rings 

 between which are rings of black more or less divided and re- 

 placed by blotches or rings of red or pink. The proportion 

 of black to red varies greatly. Some of the white rings 

 may be incomplete or alternate, and they usually are broader 

 below. 



In life, the light rings vary from light gray to bright 

 yellow, and the red from brownish or brick red to scarlet. 



Length to anus 223 



Length of tail 38 



Distribution. This snake is said to range from south 

 central Texas to South Dakota, thence west to Utah and 

 eastern Arizona. 



Dr. Carman recorded it from Utah but gave no definite 

 locality. The only Utah specimen I have seen is a young 

 female collected in Cedar City Canyon, Iron County, given 

 to me by Mr. Herbert Pack. Blanchard records it also from 

 Provo, Utah County, Utah. 



I have seen no specimens from Arizona, but Stejneger 

 and Blanchard record it from "eastern Arizona" and Yar- 

 row's specimen from Camp Apache represented this sub- 

 species. 



