402 VENOMS 



Yipera raddii, 44. 

 ,, renardi, 44. 



,, russellii (daboia, or Russell's viper), 45, 40. 

 ,, ,, muscular apparatus of head of, 11, 12. 



,, ,, poison-gland of, 11, 12. 



,, ,, protection against, adopted by natives, 46. 



,, ,, venom of, coagulant action on blood, diminished when heated, 191. 



,, ,, ,, extremely potent, 40. 



,, ,, ,, dose lethal for rabbit, 175. 



,, ,, ,, ingestion causing death, 180. 



,, super ciliar is, 69. 

 ,, ursinii, 24, 25, 44. 

 Viperidce, 5, 43, 66. 



,, bites of, local gangrene resulting from, 177. 



,, characteristics of, 5. 



,, geographical distribution, 6. 



,, poison-fangs canaliculate, 5. 



,, species of, bite produces grave local disorders, 168. 



,, sub-families of, 6. See also Viperina, Crotalina. 



,, venoms of, absorption by digestive tract sets up acute inflammation of gastric 



mucous membrane, 180. 

 ,, ,, action on nervous centres weak, 185, 186. 



,, ,, comparison of coagulant action on blood of various species, 190. 



,, ,, easily destroyed by heat, 161. 



,, ,, hffimolysing power, weak, 199. 



,, ,, lethal effects on mammals, 171. 



,, ,, neurotoxin present in those of some species, 249. 



,, ,, non-dialytic, 161. 



,, ,, produce coagulation of blood, 179, 188, 189. 



,, ,, „ hfemorrhagic injections of peritoneum, 179, 180. 



,, ,, recovery after non-lethal doses, slow, 177. 



,, ,, ,, ,, ,, followed by loss of sight, smell, or 



hearing, 178. 

 ,, ,, recovery after non-lethal -doses complicated by visceral hasmorrhages, 



177, 178. 

 ,, ,, resemblance in action of that of Japanese salamander to, 317. 



,, ,, ,, ,, ,, Ornithorliynchus to, 824. 



,, ,, richness in haemorrhagin, 249. 



Viperin, chemistry of, 130. 



Viperino', 43, 66, 101. Sec also Atlieris, Atractaspis, Bitis, Causiis, Cerastes, Echis, 

 Pseudocerastes, Yipera. 

 ,, characteristics of, 6. 



Viscera, haemorrhages from, complicating recovery from bites of Yiperida, 177, 178. 

 ,, hypersemia of, caused by fatal bite of species of Coluhridie, 171. 



WalI/, chemical constituents of venom, 160. 



Waller, fatal instance of rapid poisoning from bite of Naja liajc, 60. 



Walterinnesia, 64. 



