Vin BULLETIN 17 8, UNITED STATES NATIONAL MUSEUM 



Order Lagomorpha: Hares, rabbits, pikas — Continued. 



Family Leporidae: Hares, rabbits — Continued. Page 



Genus Romerolagus Merriam 215 



Genus STjlvilagus Gray 215 



Family Ochotonidae: Pikas, or conies 224 



Genus Ochotona Link 224 



Order Marstjpialia: Marsupials 228 



Family Caenolestidae 228 



Genus Lesloros Oehser 228 



Family Didelphiidac: Opossums 228 



Genus Chironedes lUiger 228 



Genus Didelphis Linnaeus 228 



Genus Marmosa Gray 229 



Genus Mctachirops Matschie 231 



Genus Melachirus Burmeister 232 



Genus Monodelphis Burnett 232 



Genus Philander Brisson 232 



Family Phalangeridae: Phalangers 232 



Genus Phalanger Storr 232 



Order Perissodactyla: Odd-toed ungulates 232 



Family Equidae: Horses 232 



Genus Equiis Linnaeus 232 



Family Tapiridae: Tapirs -_ 233 



Genus Tapirella Palmer 233 



Order Pinnipedta: Seals, walruses 234 



Family Otariidae: Eared seals 234 



Genus Ardocephalus E. Geoffroy and F. Cuvier 234 



Family Phocidae: Hair seals 234 



Genus Mirounqa Gray -_ 234 



Genus Phoca Linnaeus 234 



Order Primates: Lemurs, marmosets, monkeys, apes, men 235 



Family Alouattidae: Howler monkeys 235 



Genus Alouatta LacdpSde 235 



Family Aotidae: Durukulis, or night monkeys __ 236 



Genus Actus Humboldt 236 



Family Callitrichidae: Marmosets 236 



Genus Mysiax Gray 236 



Family Cebidae: American monkeys 236 



Genus Ateles E. Geoffroy 236 



Genus Cebus Erxleben 237 



Family Cercopithecidae: Guenons, macaques, baboons, langurs 237 



Genus Cercopithecus Briinnich 237 



Genus Colobus Hliger 239 



Genus Cynopithecus T. Geoffroy 240 



Genus Erythrocebvs Trouessart 240 



Genus Lyssodes Gistel 240 



Genus Macaca Lac6p6de 240 



Genus Papio Erxleben 246 



Genus Pret^bytis Eschscholtz 247 



Genus Simias Miller 250 



Family Galagidae: Bush babies 250 



Genus Galngo E. Geoffrey — 250 



Family Hylobatidae: Gibbons 251 



Genus Hylobates Hliger 251 



