CONTENTS xi 



CHAPTER VI 



THE NEARCTIC REGION— 



PAGE 



Section I. Boundaries op the Nearctic Region . . 153 

 „ II. General View op the Mammal - fauna of 



the Nearctic Region .... 

 „ III. Sub-division op the Nearctic Region . 

 „ IV. The Canadian or Cold Sub-region 

 „ V. The Western or Arid Sub-region . 

 „ VI. The Eastern or Humid Sub-region 

 ., VII. The Past History op the Nearctic Mammal- 

 fauna 



List of the Principal Authorities referred to in 

 Chapter VI 



154 



161 

 164 

 167 

 169 



171 

 176 



CHAPTER VII 



THE PAL^ARCTIC REGION- 

 SECTION I. Boundaries op the Pal^arctic Region . 177 

 „ II. General View of the Mammal-fauna of 



the Pal-siarctic Region . . . .178 

 „ III. Sub-division of the Pal^earctic Region . 185 

 „ IV. The Europasian Sub-region . . . .187 



„ V. The Eremian Sub-region 189 



„ VI. The Chinese Sub-region 191 



„ VII. The Past History of the Pal^arctic 



Mammal-fauna 193 



CHAPTER VIII 



MARINE mammals- 



Section I. Introductory Remarks 197 



II. Distribution op Pinnipeds .... 19S 

 .. III. Distribution of Sirenians . . . .203 

 „ IV. Distribution of Cetaceans .... 205 



