648 



U. S. P. R. R. EXP. AND SURVEYS ZOOLOGY GENERAL REPORT. 



On the Upper Missouri, and west, it is replaced by an allied species, and it probably does not 

 extend io the western borders of Texas. In Mexico and Sonora it is replaced by the Cervus 



mexicanus. 



Fig. 13. Cervus virginianut, No. 3062. Essex county, New 

 York. Eight horn from inside. Size, 4.16 inches to the 

 inch. 



It is a well ascertained fact that the more northern specimens of this deer are appreciably 

 larger than those found further south, and that the deer of the southern seacoast and its islands 

 are smaller than those of the uplands and mountains of the same latitude. This fact is well 

 established by the comparison of specimens in the Smithsonian collection, from New York and 

 from St. Simon's island. 



List of specimens. 



