INDEX 
Oligobunis, 188. 
Onager, or Asiatic ass, 367. 
Onka, or agile gibbon (Hylobates 
agilis), 22. 
Ooakaries (monkeys), 44. 
Oorial or sha (Ovis vignet), 251, 252. 
Opossum family (Didelphide), 513. 
Opossum, Australian, 500, 502. 
Opossum, evolution of habits, 519. 
Opossum, murine (Didelphis mu- 
rina), 519. 
Opossum, of United States (Didel- 
phis virginianus), 574. 
Opossum, water (Chironectes mini- 
ma), 520. 
Opossum-rat (Cenolestes obscurus), 
505. 
Orang-utan (Simia satyrus), 17, 20. 
Ornithorhynchus or duckbill, 523. 
Orohippus, Eocene horse, 353. 
Oryx antelopes (genus Oryx), 272. 
Otter, Brazilian (Pteronura brasili- 
ensis), 184. 
Otter, European (Lutra vulgaris), 183. 
Otter, North American (Lutra cana- 
densis), 184. 
Otter, sea (Latax Iutris), 185. 
Ounce (Felis uncia), 130. 
Oxen or cattle, 238. 
Paca (Celogenys paca), 419. 
Pack-rat, bushy tailed (Neotoma 
cinereus), 439. 
Pajero, or grass cat, 103. 
Paleomastodon, 392, 394. 
Palhyena, 159. 
Palm rat, a galago, 53. 
Pampas cat (Felis pajeros), 103. 
Panda (.Flurus fulgens), 221. 
Pangolin, West African (Manis 
gigantea), 487. 
Panther (puma or leopard), 94, 127. 
Pantolambda, 233. 
Paradoxures or tree-cats, 153. 
Parahippus, Miocene horse, 355. 
Peccary, collared (Tayassu angu- 
latum), 344. 
Peccary, white-lipped 
labiatus), 345. 
Pekan or Pennant’s marten, 164. 
Peludo armadillo, 476, 477. 
Perissodactyla, 234, 236, 352. 
Phalanger, long-snouted (Tarsipes 
rostratus), 503. 
Phalanger, opossum (Trichosurus 
vulpecula), 502. 
Phalanger, yellow, flying (Petaurus 
australis), 502. 
Phenacodus, 230. 
Pigs, intelligence of, 346. 
Pigs, source of domestic, 346. . 
Pinnipedia, order, 230. 
Pisoti, or coati, 227. 
Pithecanthropus (P. erectus), 10. 
Platypus, or duckbill, 523. 
Playing ’possum, considered, 518, 
519. 
Plesictis, 162. 
Pliohippus, Miocene horse, 355. 
Pocket mice and gophers, 426, 427. 
Polecat (Putorius fatidus), 168. 
Porcupine, artistic use of quills, 415. 
Porcupine, Brazilian tree (Sphin- 
gurus prehensilis), 416. 
Porcupine, Canada (Erethizon dor- 
satus), 414. 
Porcupine, European (Hystrix cris- 
tata), 413. 
Porcupine, yellow-haired (Erethizon 
epixanthus), 415. 
Potto, Bosman’s (Perodicticus potto), 
54. 
Pouch, evolution of marsupial, 512. 
Prairie dog (Cynomys ludovicianus), 
454- 
Primates, characteristics of order, 7. 
Proboscidea, elephant order, 386- 
399- 
(Dicotyles 
552 
