TABLE OF GENERA DESCRIBED IN THIS VOLUME. 



Page 



Genus Lynx, 1 



" Arctomyg, ........... 16 



" Lepus, 25 



" Neotoma, 31 



" Sciurus,. ........... 38 



" Vulpes, 44 



" Tamias, 64 



" Spermophilus, 76 



" Scalops 81 



" Fiber, 107 



" Pteromys 132 



" Mus, 189 



" Gulo, 202 



" Sigmodon, ........-•• 227 



" Dycotyles, 233 



" Putorius, 250 



" Hystrix, ............ 277 



" Mustela, 307 



" Mephitis 316 



" Pseudostoma, 332 



" Arvicola, 340 



" Castor 347 



" Melea 360 



