PLATE VII 

 Amphibia and Reptilia of Colorado 



Fig. 32. — Zamenis flanellum. 



Coachwhip Snake 



(page 103). 



Fig. 33. — Zamenis Jlagdlum. 



Coachwhip Snake 



(page 104). 



Fig. 34. — Tantilla nigriceps, 



Texas Black-headed Snake 



(page 106). 



35 



36 



Figs. 35 and i6.—~Pityophis calenifer sayi. Bull Snake: i, rostral; 2, preocular; 3, infralabial; 4, 

 postorbital; 5, supralabial; 6 and 12, supraocular; 7 and 11, frontal; 8, supranasal; 9 and 10, nasals; 

 13, parietal (page 93). 



Fig. 37. — Chdydra serpentina. Snapping Turtle: i, neural; 2, costal; 3, marginal; 4, nuchal 



(page 113). 



