List of Half-tone Illustrations 



PLATE FACING PAGE 



Ixix. WESTERN GARTER SNAKE, Eutcenia elegans . . 228 

 ONE-STRIPED GARTERSNAKE, Eutcenia elegans; phase 



infernalis ....... 228 



Ixx. GRAY GARTER SNAKE, Eutcenia elegans vagrans . 229 

 MARCY'S GARTER SNAKE, Eutcenia elegans marciana 229 



Ixxi. BROWN GARTER SNAKE, Eutcenia eques . . 236 

 Phases of the COMAION GARTER SNAKE, Eutcenia 



sirtalis . . .... 236 



Ixxii. RED-BARRED GARTER SNAKE, Eutcenia sirtalis pari- 



etalis . 237 



PICKERING'S GARTER SNAKE, Eutcenia sirtalis pick- 



eringii. This is the blackest of the varieties 237 

 of E . sirtalis 



SPOTTED GARTER SNAKE, Eutcenia sirtalis ordinata 237 

 Ixxiii. HEADS OF THE WATER SNAKES. Tropidonotus leberis, 

 Ohio. Tropidonotus fasciaiu s, Florida; Tropi- 

 donotus grahami, Missouri; Tropidonotus tax- 

 ispilotus, Georgia; Tropidonotus rbombifer, 

 Illinois; Tropidonotus validus, Mexico: Semi- 

 natrix pygcea, Florida . . 240 



Ixxiv. QUEEN SNAKE, Tropidonotus leberis. (Young) . 241 

 QUEEN SNAKE, Tropidonotus leberis. (Adult) . 241 

 GRAHAM'S WATER SNAKE, Tropidonotus grahami 241 

 Ixxv. BANDED WATER SNAKE, Tropidonotus fasciatus 244 

 RED-BELLIED WATER SNAKE, Tropidonotus jasciatus 



eryibrogaster. ...... 244 



Ixxvi. COMMON WATER SNAKE, Tropidonotus fasciatus 



sipedon . 245 



BLOTCHED WATER SNAKE, Tropidonotus jasciatus 



transversus . . . 245 



Ixxvii. FLAT-TAILED WATER SNAKE, Tropidonotus compressi- 



caudus ....... 252 



DIAMOND-BACK WATER SNAKE, Tropidonotus rbomb- 



i/er 252 



Ixxviii. GREEN WATER SNAKE, Tropidonotus cydopium 253 

 BROWN WATER SNAKE, Tropidonotus taxispilotus. 

 Largest of the North American Water Snakes, 

 Reaching a Length of Five Feet . . . 253 

 xxviii 



