PLATE VII 



Amphibia and Reptilia of Colorado 



Fig. 32. — laments flagellum. Fig. 33. — Zamenis Jlagellu 



Coachwhip Snake Coachwhip Snake 



(page 103). (page 104). 



FlG. 34. — Tantilla nitrite ps. 



Texas Black-headed Snake 



(page 106). 



35 



36 



Figs. 35 and 36. — Pilyophis catenifer sayi. Bull Snake: 1, rostral; 2, prcocular; 3, infralabial; 4. 

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

 13, parietal (page 93). 



FlG. 37. — Chelydra serpentina. Snapping Turtle: 1, neural; 2, costal; 3, marginal; 4, nuchal 

 (page 113). 



