SNAKES OF THE GENUS PITUOPHIS 

 33 37 51 43 32 29 



103 



Region No. 1 2 3 4 5 6 



Figure 54. — Geographic variation in number of infralabials in Pituophia sayi aayi. 



29 



33 



37 



50 



44 



33 



5 



4.8 



4.6 



4.4 



4.2 



4 



3.8 



3.6 



3.4 



3.2 



3 



Region No.l 2 3 4 5 6 



FiGXJBB 65.— Geographic variation in number of postoculars in Pituophis savi fayi. 



