VIPERID^. 647 



Genus SISTRURUS. 



417. Sistrurus miliarius (Linn.). Smaller Rattlesnake. 

 Hab. S.E. North America. 



(See ed. 8, p. 623, Crotalus miliarius.) 



a, b. Purchased, Sept. 8, 1887. 

 c-k. Deposited, Sept. 8, 1887. 



Genus CROTALUS. 



418. Crotalus confluentus, Say. Confluent Rattlesnake. 

 Hab. North America. 



(See ed. 8, p. 622, Crotalus confluentus and G. lecontii.) 



419. Crotalus durissus, Linn. Common Rattlesnake. 

 Hab. North America. 



(See ed. 8, p. 622.) 



a. Purchased, March 21, 1884. 



6, c. Presented by W. A. Conklin, Esq., C.M.Z.S., Nov. 4, 



1886. 

 d. Presented by the Natural History Society of Toronto, 



Oct. 24, 1887. 



, f. Deposited, Aug. 25, 1889. 

 g. Presented by the Natural History Society of Toronto, 



Oct. 26, 1891. 



420. Crotalus hoiridus, Linn. Horrid Rattlesnake. 

 Hab. North America. 



(See ed. 8, p. 623.) 



a. Presented by Mr. A. Begg, April 11, 1884. From 



Florida. 



b. Presented by Gerald Waller, Esq., July 22, 1884. 



c. d. Purchased, Oct. 21, 1884. 

 e. Purchased, June 23, 1887. 



f-y. Born in the Menagerie, Jan. 25, 1888. 



