BOREAL 

 ZONE 



TRAN- 

 SITION 

 ZONE 



vAUSTRAL 

 ^ ZONE 



Fig. I — Diagram showing the reLitionship of the Zones and Faunas of the Temperate 

 Region. A Zone usually comprises one or more faunas. Subfaunas are not entered. 

 The shading is heavy in proportion to the rainfall. 



