420 Zoological Society. 



Fam. URSID^. 



Auditory bulla rising suddenly on its inner side, and more or less 

 flattened oflF towards the meatus. 



Paroccipital process prominent, and neither flattened on the surface 

 of the auditory bulla, nor laterally compressed. 



Foramen condyloideum exposed. A considerable foramen gle- 

 noideum. 



No caecum. No Cowper's glands. 



Prostate gland not salient, being contained in the thickened walls 

 of the urethra. 



Subfam. Ursina. (Of general geographical distribution.) 



A distinct ali-sphenoid canal. 



Internal carotid artery reappearing externally after passing through 



its canal, and doubling back to enter the cranium. 



2 

 True molars on each side -g-- 



Ursus (including the subgenera). 



Subfam. Ailtjrina. (Confined to India.) 

 A distinct ali-sphenoid canal. 



2 

 True molars on each side -g-- 



Ailurus. 



Subfam. Procyonina. (Confined to America.) 



No ali-sphenoid canal. 



2 

 True molars on each side y' 



Procyon. Cercoleptes. 



Nasua. Bassaris. 



Subfam. MusTELiNA. (Of general geographical distribution.) 



No ali-sphenoid canal. 



True molars on each side -w' 



Auditory bulla rounded, frequently showing indications of being 

 divided into two parts. 



Paroccipital process flattened, and applied to the back part of the 

 auditory bulla. 



