54 Proceedings of the Biological Society of Washington. 



Measurements of Skulls of the Gray Fox. 



Basilar length 



Width at rear of ear opening. 



Width across postorbitals 



Interorbital width 



Width at antorbital foramen 



Width at canines 



Length pm* 



Width pm« 



Length m*.. 



Width ml 



Length m^ 



Width m2 



From 

 Illinois 



115 ± 

 37 

 38.3 

 26 

 25 

 18.6 

 12 



6 



8.6 

 11 



7 



8.6 



It is somewhat remarkable that this subspecies should be found so far 

 away from its present habitat. Its occurrence in Kentucky appears to 

 add testimony to the writer's view that at some time shortly after the 

 retirement of the Wisconsin ice there was a period in which the climate was 

 warmer that it now is (Amer. Jour. Sci., ser. 4, vol. 47, p. 363). 



Mr. Gerrit S. Miller, Jr., has called the writer's attention to a note pub- 

 lished in January, 1921 (Canad. Field-Naturalist, vol. XXXV, p. 19), 

 by W. J. Wintemberg, who reported the discovery of several lower jaws 

 and a part of a skull of the gray fox in an old village site in Canada. The 

 locality is in Oxford County, Ontario. This fox has not hitherto been 

 known to have been an inhabitant of Canada. Judging from the remains 

 found it was formerly as abundant as the red fox. 



