Zoological Society. 421 



Foramen condyloideum more or less concealed. Foramen gle- 

 noideum very small or wanting. 



Caecum small or moderate, simple. Cowper's glands present. 

 Prostate gland salient. 



Subfam. Viverrina. (Confined to the old world.) 

 A distinct ali-sphenoid canal (with very few exceptions*). 

 Auditory bulla distinctly subdivided. 

 Canalis caroticus distinct, though sometimes only as a groove. 



2 

 True molars on each side y 



Galictis. Cynogale. 



Ryzaena. Paradoxurus. 



Cynictis. 



Herpestes. Prionodon. 



Genetta. 



Arctictis. Viverra. 



Subfam. HYiENiNA. (Confined to the old world.) 

 No ali-sphenoid canal. 



Division of auditory bulla scarcely perceptible. 

 Canalis caroticus indistinct, or very smaJl. 



True molars on each side — j — J premolars on each side y 



Proteles. 

 Hyaena. 



Subfam. Felina. (Of general geographical distribution.) 



No ali-sphenoid canal. 



Division of auditory bulla slightly, or scarcely perceptible. 



Canalis caroticus indistinct, or not perceptible. 



1 3 



True molars on each side y ; premolars on each side -g-* 



FeHs. 



Fam. CANID^. 



A distinct ali-sphenoid canal. A considerable foramen glenoideum. 

 Auditory bulla rounded, not divided. 



Internal carotid artery reappearing externally after passing through 

 its canal, and doubling back to enter the cranium. 



Paroccipital process laterally compressed, foramen condyloideum 

 exposed. 



Caecum folded upon itself. No Cowper's glands. Prostate gland 

 salient. 



Cynalicus. Vulpes. 



Cyon. Nyctereutes. 



Lycaon. Otocyon. 



Canis. 



* The exceptions that I have seen are the Rasse {Viverra malaccemis) and a 

 species of Galictis. 



