146 



VENOMS 



(5) AMEBIC A. 



Families. Sub-Families. 



CoLUBRiD^ Elajnncc ... 



Genera. 



Elajis 



I Ancistrodon. 



Lacliesis 

 ViPERiD^ Crotaluice ...< sistrurus 



Cro talus 



Geographical Area. 



(Mexico, Central Anievica, 

 j Bolivia, Ecuador, Peru, 

 ( Colombia, Brazil. 



'North America, Florida, 

 Texas, Mexico, Guate- 

 mala. 



j Central and South Ameri- 



' ' ( ca, Martinique, St. Lucia. 



I North America east of the 



■••-{ Eocky Mountains, Mex- 



( ico. 



i Southern Canada, British 

 Columbia, Central Amer- 

 ica, Guiana, Venezuela, 

 Brazil, Uruguay, Nortli- 

 ern Argentina. 



