46 SNAKES OP THE PHILIPPINE ISLANDS 



Family Anillidse — Continued. 

 Subfamily Acrochordins. 

 Natricinse. 

 Homalopsinse. 

 Coronellina. 

 Rachiodontinse. 

 Boiginas. 



Elachistodontinse. 

 Langahinas. 

 Family Elapidse. 



Subfamily Hydrinae. 

 Elapinse. 

 Family Amblycephalida. 

 Cobi'idfe. 

 Crotalidse. 



In the nomenclature of the genera and species the oldest valid 

 name is used in each case, and the variations from the nomen- 

 clature of former works must be construed as due to no other 

 reason than necessity. 



