ALLEN ON GEOGRAPHICAL DISTRIBUTION OF MAMMALS 363 



Genera of the Insular Province. 



Summary. 



Total number of genera 83 



Restricted to the province* 25 



Restricted to the Indian Region 52 



Found outside of the Indian Region in the African only 20 



Common to the African and Indian Regions 29 



Wide-ranging (exclusive of tropicopolitan) •. 12 



Of local distribution 12 



Restricted to Borneo 2 



Restricted to Borneo and Sumatra ~ 1 



* Exclusive of several tropicopolitan genera not occurring elsewhere in the Indian 

 Region. 



