CONTENTS. XIII 



Order Rodentia — Continued. Page. 



Family Castoridee 341 



Genus Castor 341 



Order Lagomorpha 343 



Family Ochotonidse 343 



Genus Ochotoua 343 



Family Leporidie 345 



Genus Lepus Linnaeus 345 



Subgenus Lepus Linnaeus 345 



Subgenus Macrotolagus Meams 351 



Genus Sylvilagus Gray 357 



Subgenus Sylvilagus Gray 358 



Subgenus Tapeti Gray 372 



Genus Brachylagus Miller 375 



Genus Romerolagiis Merriam 375 



Order Edentata 376 



Family Bradypodidai , 376 



Genus Choloepus Illiger 376 



Genus Bradypus Linnaeus 376 



Family Myrmecophagidas 376 



Genus Cyclopes Gray 376 



Genus Tamanduas F. Cuvier 377 



Genus Myrmecophaga Linnaeus 377 



Family Dasypodidae 378 



Subfamily Dasypodinae 378 



Genus Dasypus Linnaeus 378 



Subfamily Cabassouinae 378 



Genus Cabassous McMurtrie 378 



Order Primates 379 



Family Saimiridae 379 



Genus Saimiri Voigt 379 



Family Aotidae 379 



Genus Aotus Hiunboldt 379 



Family Callitrichidas 380 



Genus Leontocebus Wagner 380 



Family Alouattidae 380 



Genus Alouatta Lac^pMe 380 



Family Cebidac 381 



Genus Cebus Erxleben 381 



Family Atelidae 382 



Genus Atclcs 382 



Order Artiodactyla 383 



Family Tayassuidae 383 



Genus Pecan Reichenbach 383 



Genus Tayassu Fischer 384 



Family Cervidae 385 



Subfamily Cervina? 385 



Genus Cervus Liimacus 385 



Genus Odocoileus Rafinesque 385 



Genus Mazama Rafinesque 390 



Genus Alces Jardine 391 



Genus Rangifer Hamilton Smith 391 



Family Antilocapridae 393 



Genus Antilocapra Ord 393 



