THE REPTILE BOOK 



PLATE CXIII 



COMMOX HOG-NOSED bAAKE, Hetcrodon platyrhinus. 



The three species of Helerodon are characteristic in haying a sharply upturned snout, and, owing to peculiar habits. When 

 annoyed they flatten the head and neck to a great extent and hiss loudly. Their hostile airs have placed them in bad repute, yet they 

 are entirely harmless and seldom attempt to actually bite. They feed entirely upon toads and frogs 



BLACK HOG-NOSED SNAKE, Heterodon platyrhinus niger 

 The habitat embraces the Eastern and Central States, as does that of the typical form 



