358 CROTALID.E. 



178. Crotalus lecontii. Leconte's Rattlesnake. 

 Hob. Western States of North America. 

 a. Received in exchange, Oct. 25, 1870. 



179. Crotalus horridus, Linn. Horrid Rattlesnake. 

 Hob. Nicaragua. 



a. Presented by Capt. J. M. Dow, F.Z.S., Nov. 11, 1871. 



Genus CRASPEDOCEPHALUS. 



180. Craspedocephalus bilineatus, Max. Two-lined Palm- 



Viper. 



Hab. Brazil. 



a. Presented by Dr. Wucherer, C.M.Z.S., Oct. 1, 1864. From 

 Bahia. 



Genus TRIGONOCEPHALUS. 



181. Trigonocephaluslanceolatw,Opipe[. Rat- tailed Serpent. 

 Hab. St. Lucia, West Indies. 



a. Presented by His Excellency G.W. Des Voeux,Esq., C.M.Z.S., 

 April 13, 1871. See P. Z. S. 1871, pp. 2, 479. 



