430 DISEASES DUE TO VENOMS AND POISONS 



The hemibungarus, calloptus and adenophis will seldom 

 attack one. 



They must be looked for in the jungle. They are a cherry, 

 red colour. Little is known about their venom. 



Sistrurus caienatus (prairie rattlesnake, or Massasanga). 

 (After Holbrook and Stejneger.) 



(2) Hydrophince. — These have already been described. 



(3) Viperince. 



The nasal and rostral shield are in contact or separated by 

 one shield. 



