428 DISEASES DUE TO VENOMS AND POISONS 



In Asia — Here all kinds are represented. 

 (i) Elapime. 



The naja has a venom chiefly neurotoxic. 



The bungarus has a single row of scales on the back. The 

 N. candidus seldom exceeds 4 feet in length, is blue-black in 



Crotalus tertificus (dog-faced rattlesnake, cascavella in Brazil). 

 (After Stejneger.) 



colour with white or yellow bands. Its fang leaves practically 

 no mark behind. Its venom is neurotoxic. The natives affirm 

 that it breathes upon them while they are asleep and thus kills 

 them. 



The N. fasciatus has alternate broad rings of bluish-black and 



