CONTENTS. 



The Common Agouti . 



The Black Agouti 



The Acouchi 



The Cavies .... 



The Patagonian Cavy, or Mara 



The Capybara 



Family— LEPORlDiE 



The Common Hare 

 The Rabbit . 

 The Syrian Hare . 

 The Dwarf Pika . 



142 

 144 

 144 

 146 

 150 

 152 



156 

 159 

 161 

 IGl 



Order— EDENTATA. 

 Section I. LEAF-EATERS. 



Family— SLOTHS. 

 The Common Sloth, or Ai 165 



Family— GRAVIGRADA. 



Mylodon robustus . . . . • .174 



Scelidotherium . . . . . • .173 



The Megatherium . . . . • .181 



Section H. INSECTIVOROUS EDENTATA. 



Family— LORICA. 



The Peba 191 



TheMataco i03 



