ILLUSTRATIONS xvii 



PAGE 



Hudson Bay Lemming 225 



Field Mouse . 227 



Capper's Red-Backed Mouse 229 



Northwestern Vole 231 



Florida Wood Rat 232 



Rice-Field Mouse • 234 



Cotton Rat 235 



White-Footed Mouse 237 



Le Conte's Harvest Mouse 237 



Mole Mouse 239 



Kangaroo Rat 241 



Kangaroo Rat 242 



Typical Pocket Mouse 242 



Jumping Mouse 244 



Red Pocket Copher 247 



Coypu Rat 250 



Brazilian Prehensile-Tailed Porcupine 252 



Canada Porcupine 253 



TheViscacha 255 



The Agouti 258 



The Capybara 261 



