10 MR. W. H. FLOWER ON THE [Jan. 14, 
in the form of the auditory bulla—it being more like that of Ursus, 
except that it is rather longer from before backwards, and slightly 
more bullate. The carotid foramen, however, differs widely in its 
position from that of the Bear, being placed very conspicuously 
rather in front of the middle of the inner edge of the bulla. The 
paroccipital and mastoid processes are not much developed, partaking 
of the general flattening that the base of the cranium seems to have 
undergone, but they occupy the same relative position as in the 
Fig. 3. 
Fig. 3. Under surface of the skull of the Raccoon (Procyon lotor). 
3a. Under surface of the skull of Bassaris astuta. 
(The letters as in fig. 1.) 
foregoing genera. The first-named is much compressed and turned 
backwards. The condyloid foramen is conspicuous ; but the glenoid 
foramen, though present, is reduced to a mere slit by the overlapping 
of the tympanic bone and shortness of the postglenoid process. 
The alisphenoid canal is absent. 
