38 Bulletin American Museum of Natural History. [Vol. XXXIV, 
: " a5 S 
Fig. 32. Vulpavus canavus, lower jaw, 
diameters, with outline of natural size. No. 14760; outline of lower jaw and m 
from No. 14761. Lost Cabin beds, Wind River Basin. 
internal and external, and crown view of teeth, enlarged to two 
3 from No. 14763; tip of m; 
