List of Half-tone Illustrations 



PACING PAGB 



xcv. Emory's Coluber, Coluber emoryi. A Powerful 

 Example of the Useful, Rat-eating Snakes — 



Genus Coluber ...... 300 



xcvi. Corn Snake, Coluber gutiatus . ' . 301 



Smooth-scaleo Coluber, Rhinechis elegans 301 



xcvii. Heads of Smooth-scaled Coluber, Rhinechis 



elegans, Arizona ..... 304 



Pine Snake, Pihwphis melanoleucus, New Jersey 



Phase. ....... 304 



Pine Snake, Pituophis melanoleucus. Florida Phase. 304 



Bull Snake, Pituophis caienifer. California. 304 



xcviii. Common Pine Snake, Pituophis melanoleucus . 305 

 Pine Snake, Pituophis melanoleucus — Southern 



Phase ....... 305 



xcix. Common Bull Snake, Pituophis sayi. Largest of the 



North American Serpents. .... 320 



Pacific Bull Snake, Pituophis catenifer . 320 



c. Keeled Green Snake, Cyclophis cestivus 321 



Smooth-scaled Green Snake, Liopeliis vernalis 321 



ci. Rock Snake, Hypsiglena ochrorhyncha . . 322 



Pacific Brown Snake, Contia mitis 322 



cii. Eastern R\NG-NECKED Snake, Diadophis punctalus 323 



Western Rmc.-NECKED Snake, Diadophis amabilis 323 



ciii. Heads of Milk Snake, Ophibolusdoliatusiriangulus, 



New York ...... 334 



Red Milk Snake, O. ^. c/mcz/i, Virginia . . 334 

 Brown King Snake, 0. rhombomaculatus, 



Virginia ....... 334 



Common King Snake, O. getulus, Florida . . 334 

 Boyle's King Snake, 0. getulus boyJii, Cali- 

 fornia. ....... 334 



Arizona King Snake, 0. ^onatus, Arizona . 334 



civ. Brown King Snake, Ophibolus rhombomaculatus. 



(Young Adult) 335 



Brown King Snake, Ophibolus rhombomaculatus 335 



XXX 



