320 



Measurements offfty-tJiree slculls 0/ Vulpes alopex et vars. ■ 



9481 

 «039 

 8037 

 8417 

 6037 

 6039 

 6040 

 6034 

 6035 

 4300 

 6221 

 6038 

 7175 

 6221 

 7179 

 6264 

 1485 

 6262 

 7186 

 1484 

 6225 

 1492 

 6263 

 1519 

 6259 

 6258 

 1518 

 11573 

 11297 

 11296 

 11218 

 7855 

 12909 

 1325 

 2014 

 4191 

 3078 

 3073 

 3067 

 3719 

 3695 

 3698 

 3709 

 3716 

 3701 

 3715 

 3074 

 3075 

 1038 

 790 

 868 

 869 

 870 



Locality. 



Kinai, Alaska 



Kodiak, Alaska 



do 



Aleutian Islands .♦. 



Yukon River 



do 



do 



do 



do 



Fort Liard , 



Peel River 



do 



Fort Good Hope 



do 



do 



Fort Anderson 



do 



-do. 

 -do. 

 -do. 

 -do. 

 -do. 

 -do. 

 -do. 

 -do. 

 -do. 

 -do. 



Wyoming Territory 



do 



do 



do 



FortBerthold.. 



Fort Randall, Dak 



Fort Kearney, Xebr 



Fort Dalles, Oreg 



FortCrook, Cal 



Essex County, New York. 

 do 



do... 



do... 



, do... 



do... 



do... 



do... 



do... 



do... 



do... 



do... 



Sweden... 

 England.. 

 Germany. 



""'.do'.'.'. 



6.20 

 6.20 

 5.90 

 6.15 

 6.15 

 6.00 

 5.70 

 5.80 

 5.70 

 5.95 

 5.87 



5. e5 



6.00 

 5.90 

 5.75 

 6.10 

 6.00 

 5.95 

 5.80 

 5.75 

 5.75 

 5.75 

 5.66 

 5.65 

 5.60 

 5.55 

 5. .55 

 6.00 

 6.00 

 5.82 

 5. .'>0 

 5.90 

 5.65 

 5.77 

 5.70 

 5.40 

 5.65 

 5.68 

 5.60 

 5.50 

 5.50 

 5.30 

 5.30 

 5.37 

 5.27 

 5.25 

 5.25 

 5.20 

 5.70 

 5.65 

 5.62 

 5.62 

 5.50 



3.03 

 3.32 

 3.00 

 3.25 

 3.00 

 3.15 

 3.05 

 3.00 

 2.90 

 3.14 

 3.10 

 2.88 

 3.00 

 3.07 

 2.94 

 3.28 

 3.25 

 3.00 

 2.90 

 2.95 

 3.00 

 3.10 

 2.87 

 3.00 

 3.00 

 2.90 



3.20 

 3.00 



2.78 

 3.03 

 2.85 

 2.85 

 2.83 

 2.70 

 2.87 

 2.85 

 2.85 

 2.95 

 2.87 

 2.70 

 2.70 

 2.75 

 2.80 

 2.75 

 2.73 

 2.78 

 3.10 

 3.04 

 3.15 

 3.05 

 3.07 



Remarks. 



Silver. 



Do. 



Do. 

 Fulvous. 



Do. 

 Silver. 

 Fulvous, 

 Silver. 



■ Do. 

 Fulvous. 

 Silver. 

 Black. 

 Fulvous. 

 Silver. 

 Fulvous. 



Do. 

 Silver. 



Do. 



Do. 

 Fulvous. 

 Silver. 



Do. 

 Fulvous. 

 "Macrurus. 



Do. 



Do. 

 ' Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



UEOCYON VIRGINIAT^US. 



Measurements of a series of fifteen skulls of this species (all of the 

 available material) form a series grading by slight differeuces in length 

 from 3.73, the smallest, to 4.77, the largest. The largest specimens are 

 from Pennsylvania, Washington, and Virginia ; all these exceed 4.60 in 

 length. The next in size are from Southern Texas and Southern Cali- 

 fornia, which range in length from 4.63 down to 4.50. Next come three 

 specimens from Tehuantepec, Southern Mexico, which range from 4.40 

 to 4.15. Between these and the next — a series of three " littoralis " 

 skulls from the islands off Southern California — is an interval of three- 

 tenths of an inch, the three ^^ littoralis ^^ skulls ranging from 3.85 to 

 3.75. The smallest of all, however, is a single well-matured skull from 

 Merida, Yucatan, 3.73 in length, and hence smaller even than the small- 

 est " littoralis " skull, its breadth being only 1.98 against a breadth of 

 2.05 in the narrowest "?i7to)'a7'<s" specimen. The localities represented 



