42. FreLp Museum or Natura. History — Zo6ézoey, Vor. XI. 
GROUP 2. Order UNGULATA. Hoofed Mammals. 
SECTION 1. Horns branched and solid (not hollow) and annually 
shed. 
Family CERVIDA. 
Deer, Moose, Caribou, etc., p. 58. 
SECTION 2. Horns simple (not branched), permanent (not annually 
shed), and more or less hollow. 
Family BOVIDE. 
American Bison or Buffalo, etc., p. 86. 
GROUP 3. Order GLIRES. Gnawing Mammals. Squirrels, Rab- 
bits, Rats, Beavers, etc. 
Front teeth (incisors) large and chisel- 
shaped and separated from the molars on 
side of jaw by a wide gap; canine teeth ab- 
sent; toes with nails or claws. 
in 
oy 
Skull of a Rodent. 
