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MR MITCHELLS SCHEME. 



[CH. II 



addition of the sub-regions. As Mr Mitchell points out 

 the four sub-regions of each region except in the case of 

 the Nearctic lie in a general way two to the north and 

 two to the south. The sub-regions may be indicated by 

 the following numbers. 



Palcearctic region. 

 N. European 1 

 Mediterranean 



2 



Siberian 3 



Manchurian 4 

 Oriental region. 

 Hiiidostan 1 

 Ceylon 2 



Indo-Chiiia 3 

 Indo-Malay 4 

 Nearctic region. 

 Canada 1 



California 2 



Rockies 3 



E. States 4 



Ethiopian region. 

 W. African 1 

 S. African 2 

 E. African 3 

 Madagascar 4 



Australian region. 

 Austro-Malay 1 

 Australia 2 



Polynesia 3 



New Zealand 4 



Neotropical region. 

 Mexico 1 



Chili 2 



Antilles 3 



Brazil 4 



The complete scheme therefore will be as follows with 

 the sub-regions shown. 



