PLATE CXXX 







1 Crotalus atrox. 



2 Crotalus oregonus. 



3 Crotalus confluentus. 



NORTH AMERICAN RATTLESNAKES 



4 Crotnlus molossus. 



5 Crotalus adamanteus. 



6 Crotalus pricei. 



7 Crotalus alrox ("scutnlatus"'). 



8 Crotalus horridus. 



9 Crotalus lepidus. 



