Classification of the North American Snakes 



FAMILY 



COLUBRID>E 



(concluded) 



NORTH 

 AMERICAN SPECIES 



Species Terrestrial 



Burrowing 



III. Pro- 

 teroglypha : 

 A p a ir o f 

 short, erect, 

 perf ora ted 

 fangs, in 

 front of up- 

 per jaw. 



Elapinse.... \ Elaps. 



This sub- 

 family em- 

 braces the 

 Cobras and 

 their allies 

 in the Old 

 World, and 

 the Coral 

 S n a k e s in 

 the New 

 World. 



f A ncistrodon . 



VIPERID>E < 



. 2 

 I I 



i Terrestrial 



i Semi-aquatic 



Terrestrial 



Crotalinae .. < Sistrnriis 



A pair of (Crotalus 



long fangs 

 f o 1 d i n g 

 against roof 

 of mouth 

 when jaws 

 , are closed. 



Total number of species : 1 1 1 . 



Explanatory.- a. Signifies that the reptile leads a burrowing or sul>- 

 subterrancous lifo. 



b. Terrestrial snakes arc those species that prowl 

 above ground in search of their prey. 



c. Semi-aquatic reptiles are those that frequent the 

 borders of ponds and streams 



d. By the term Mvr.v/Ye, we may signify those snakes 

 that arc not often found prowling; they search 

 for their prey in stone-piles or under the loose 

 bark of decaying trees. 



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