THE REPTILE BOOK 



PLATE XCIX 



Largest of the North American serpents. 



COMMON BULL SXAKE, Pituopliis sayi 

 Of economic value, as it prevs largely upon rodents. Found in the Plains Region and the West 



PACIFIC BULL SNAKE, Pituophis catenijer 

 Distinctly differ&it from the two preceding species in the smaller, close-set blotches. Also ot smaller size. Common in the 

 southern portion of the Pacific Region. Often called the Gopher Snake 



