List of Half-tone Illustrations 



PLATE PACING PAGE 



Ixix. Western Garter Snake, Euimiia elegans . . 228 

 One-striped GarterSnake, Eiilania efe^awi; phase 



injernalis ....... 228 



Ixx. Gray Garter Snake, EtdiEtiia elegans vagrans . 229 

 Marcy's Garter Snake, Euiania elegans marciana 229 



Ixxi. Brown Garter Snake, Eittema «^Me5 . . 236 



Phases of the Coaiaion Garter Snake, Euiccnia 



sirtalis ....... 236 



Ixxii. Red-barred Garter Snake, Eutcoiia sirtalis pari- 



etalis ....... 237 



Pickering's Garter Snake, Eulcenia sirtalis pick- 



eringii. This is the blackest of the varieties 237 

 of E. sirtalis ...... 



Spotted Garter Snake, Eiifa:nia sirtalis ordinata 237 

 ixxiii. HeadsoftheWaterSnakes. Tropidonoius leberis, 

 Ohio. Tropidonotu s fasciatus, F\or\da.; Tropi- 

 donoius grahami, Missouri; Tropidonoius tax- 

 ispilotus, Georgia; Tropidonoius rhombijer, 

 Illinois; Tropidonoius validus, Mexico: Semi- 

 natrix pyga:a, Florida ..... 240 



ixxiv. Queen Snake, Tropidonoius leberis. (Young) 241 



Queen Snake, Tropidonoius leberis. (Adult) 241 



Graham's Water Snake, Tropidonoius grahami 241 



Ixxv. Banded Water Snake, Tropidonoius fasciatus 244 



Red-bellied Water Sj^ake, Tropidonoius fasciatus 



erythrogastcr. ...... 244 



ixxvi. Co.MMON Water Snake, Tropidonoius fasciatus 



sipedon ....... 245 



Blotched Water Snake, Tropidonoius fasciatus 



transversus ....... 245 



Ixxvii. Flat-tailed Water Snake, Tropidonoius compressi- 



caiidus ....... 252 



DiAAioND-BACK Water Sn ake ,Tropidonolus rhomb- 



ifcr ........ 252 



Ixxviii. Green Water Snake, Tropidonoius cyclopium 253 

 Brown Water Snake, Tropidonoius iaxispilo'us. 

 Largest of the North American Water Snakes, 

 Reaching a Length of Five Feet . . . 253 



xxviii 



