Contents 



CHAPTBR PAGE 



and tlic American Coral Snakes — Resume of 

 the lilapina — Descriptions of the North Amer- 

 ican Species — Their Habits . 392 



XLllI. The Viperine Snakes; Family Viperidce 



The Thick-bodied Poisonous Snakes of the New 

 World — Serpents Distinguished by their Long 

 Fangs, which loid Against the Roof of the 

 Mouth when it is Closed .... 403 



XLIV. The Moccasins; Genus Ancistrodon 



Descriptions of the Species — Their Habits . . 414 



XLV. The Rattlesnakes 



Poisonous Snakes of Two Genera — Sistrurus and 

 ■ Crotalus — That are Unique Among Serpents 

 in the Possession of the Rattle . . 426 



Index 467 



XX 



