494 DR. J. E. GRAY ON THE CANID^. [June 25, 



Subfam. 1. Lycaonina. Head short, broad; nose short, broad. 

 Teeth large, close together. Palate very broad, short. Tail 

 short, straight. 



1. Lycaon. 



Subfam. 2. Canina. Head more or less elongate ; nose tapering. 

 Teeth moderate. Palate elongate. 



A. Wolves. Tail short, straight, bushy. Skull elongate. Old 



World and America. 



* Head short ; teeth 3S; tubercular grinders ^^. 



2. IcTiCYON. South America. 



** Head short ; teeth A^ ; tubercular grinders ■^^. 



3. CuoN. Old ^yorld — Asia. 



*** Head elongate ; teeth A2 ; tubercular grinders ^^. Temporal 

 muscles separated by a narrow linear central ridge. 



4. Lupus. Head moderate; nose broad. Europe and North 



America. 



5. SiMENiA. Head very long ; nose slender: Premolars far apart, 



small. Africa. 



6. Chrysocyon. Head very long ; nose slender. Premolars ap- 



proximate, large. South America. 



B, Bogs. Tail elongate, bent or curled. Skull short or elongate. 



7. Canis. Domesticated. 



c. Fox-tailed Wolves. Tail elongated, hairy. South American. 

 * Teeth 42 ; tubercular grinders ^^. 



8. Lycalopex. Puj)il circular. Upper tuberculars large. 



9. Pseudalopex. Pupil elongate. Upper tuberculars moderate. 



** Teeth AA ; tubercular grinders ^^^. 



10. Thous. 



Section II. Vulpin.e. Skull slight, thin, elongate; uose taper- 

 ing, long. Postorbital process thin, concave above, and spread 

 out horizontally at the tip. 

 Vulpina, Burmeister. 



Subfam. 3. Vulpina. 



D. Foxes. Tail elongate, bushy, with a gland covered with coloured 

 hair ou tiie upper part, near the base. Skull very long. Upper 



