Vlll 



LIST OF ILLUSTRATIONS. 



Page 



Teeth of Coypu 109 



Coypu 110 



Teeth of Hystrix 112 



Teeth of Erethizon . . . .113 

 Skull of Acanthion Javanicum 114 

 Skull of Common Porcupine .114 

 Common Porcupine . . . .115 



Ditto 116 



Brazilian Porcupine . . . .118 



Chinchilla 120 



Ditto 121 



Skeleton of Chinchilla . . .122 



Skull of ditto 123 



Cuvier's l.ajjotis 125 



Skeleton of ditto 127 



Skull of ditto 128 



Viscacha 129 



Skeleton and Skull of ditto . 132 



Skull of Paca 134 



Upper Jaw of ditto . . . .135 

 Lower Jaw of ditto . . . .136 



Tootli of ditto 136 



Dusky Paca . . - . . .137 



Teeth of Agouti 140 



Common Agouti 14) 



Jilack Agouti 144 



Acouchi 145 



Teeth of Guinea-pig . . . .147 



Teeth of Kerodon 148 



Patagonian Cavy 150 



Teeth of Capybara . . . .153 



Capybara 155 



Teeth of Common Hare . .157 



Dwarf Pika 162 



Skeleton of Sloth 166 



Pelvis of ditto 167 



Skeleton of Unau . • . .168 



Sloth 169 



Sloth. Mode of progression . 170 | 



Lower Jaw of Mylodon . . .176 

 Riglit brancli of the above ; ex- 

 ternal view 176 



Tooth of Mylodon . . . .177 



Ditto 177 



Remains of Skull of Scelido- 



therium 179 



Dentition of Scelidotherium . 179 



Ditto 180 



Skeleton of Megatherium . .182 

 Pelvis and Hind Leg of ditto . 185 

 Ungueal Phalanx of ditto . .186 



Tooth of ditto 186 



Peba 192 



Mataco 193 



Weasel-headed Armadillo . .195 



Tatouay 197 



The Great Armadillo . . .198 

 Extremity and Tail of Pichi- 



ciago 200 



Pichiciago 201 



Skull of ditto 202 



Upper view of ditto . . . .202 

 Basal view of ditto . . . .202 

 Lower Jaw of ditto .... 203 

 Cervical Vertebra; of ditto . . 203 

 Pelvis seen from beliind. . . 203 

 Ditto seen from below . . . 203 

 Skeleton of Pichiciago . . . 204 

 Vertebrae of Tail of ditto . .204 



Aard-vark 205 



Teeth of ditto 206 



Great Ant-eater 209 



Tamandua 212 



Little Ant-eater 214 



Temminck's Manis . . . .216 

 Skull of Short-tailed Manis . 217 



Feet of ditto 218 



Pelvis of ditto 220 



