xvi A List of the Species Herein Treated 



CATTLE FAMILY or Bovida— 



Vn. American Bison or Buffalo, Bison bison 

 (Linnaeus). p. 247 



laotients— Order dSlires. 



Nearly all the animals of this order are of small size. 

 Their most obvious general character is in the teeth; they have 

 no canines, and but two incisors in each jaw (except in the Rab- 

 bits, which have four incisors in the upper jaw) ; these are chisel- 

 edged, have persistent pulps, and are separated from the 

 grinders by a wide, vacant space. 



SQUIRREL FAMILY or SciundcB— 



VIII. Common Red-squirrel, Sciurus hudsonicus 



Erxleben. p. 307 



IX. Big or Eastern Chipmunk, Tamias striatus 



griseus Mearns. p. 337 



X. Little Chipmunk, Eutamias quadnvtttatus neg- 



lectus (Allen). p. 364 



XL Franklin Ground-squirrel, Citellus frankUni 



(Sabine). p. 372 



XII. Richardson Ground-squirrel, Citellus richard- 



soni (Sabine). p. 380 



XIII. Striped Ground-squirrel, Citellus tridecem- 



lineatus (Mitchill). p. 394 



XIV. Canada "Woodchuck, Marmota monax cana- 



densis (Erxleben). p. 416 



XV. Northern Flying- squirrel, Sciuropterus sa- 



brinus (Shaw). p. 437 



BEAVER FAMILY or Castonda— 



XVI. Canadian Beaver, Castor canadensis Kuhl. 



P- 447 



