378 VENOMS 



ColuhridcB (sub-family Elapincs). See also Bungarus, Naja, Eemibungarus , Callophis, 

 Doliophis. 

 ,, resemblance to harmless snakes, 3. 



,, species of, bite rapidly produces general intoxication, 168. 

 ,, venoms of, absorption by digestive tract often without ill-effect, 180, 181. 



cause, 181. 

 ,, ,, action on nervous centres profound, 185. 



,, ,, affinity of scorpion poison to, 278. 



,, „ albumoses of, 162. 



,, ,, destroy coagulability of blood, 179, 188, 189. 



,, ,, ■ dialyse slowly, 161. 



„ ,, lethal effects on mammals, 170. 



,, ,, minimum doses lethal for guinea-pig iu twenty-four hours, 173. 



,, ,, precipitation of anticoagulant substance in, 195. 



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



,, ,, resistant to heat, 161. 



,, ,, richness in neurotoxin, 249. 



Common rattle-snake, 125. See also Croialus dtirissiis. 

 Congestin, poison from Anemone scultata, 271. 



Conjunctivitis caused by discharge into eyes of venom of spitting snake, 63, 64. 

 Copperhead, 90. See also Denisonia sjiperba. 

 Coral-snake, 104. 



immunity from bite of, 238. 

 ,, venomous nature of, 108. 



See also Flaps corallimis. 

 Coral or harlequin snake, 106. See Elaps fulvius. 

 Cordier, D., cobra-bites treated with Calmette's serum. 363 

 Cotes, E. C, on extraction of venom by charmers, 234. 

 Cottus, 289, 290, 292, 



,, poison-apparatus of, 293. 

 CrabronidcB, 285. 



,, stings of females of, toxic to other insects, nearly harmless to man, 285. 



Crotalince {Viperido!), 101, 109. 

 ,, characteristics of, 6. 



,, venoms of certain species of, non-coagulant, 191, 192, 193. 

 , , See Ancistrodon ; Lachesis. 

 Crotahis (rattle-snake), 110, 122. 



,, comparative toxicity of organs, 220. 



,, eggs of, rich in poison, 220. 



,, poison glands of, 148. 



,, venom of, alkaloids in, 160. 



J, ,, comparison of toxicity by means of intra-cerebral injections, 186. 



,, ,, ingestion causing death, 180. 



,, ,, weak hsemolysing power possessed by, 199. 



,, adamanteus, venom of, dose lethal for rabbit, 175. 



,, cerastes (horned rattle-snake), 129. 



,, confluentus (Pacific or mottled rattle-snake), 124. 



habits, 125. 

 „ ,, devoured by pigs, 125. 



