SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 



Bulletin 187 



AN ANNOTATED CHECKLIST 



AND KEY TO THE SNAKES 



OF MEXICO 



By 



HOBART M. SMITH and EDWARD H. TAYLOR 



fprw 



gpERV 



/ORG 



UNITED STATES 



GOVERNMENT PRINTING OFFICE 



WASHINGTON : I94S 



For sale by the SuperintcDdcnt of Documents, U. S. Government Printing Office, Washington 25, D. C 



Price 50 cents 



