INDEX. 



433 



Phascogale, 379. 

 Pbascolarctos, 380. 

 Phascolomyidae, 380. 

 Phascolomys, 380. 

 Phasianus, 350. 

 Pheasant, 350. 

 Phenacodidte, 393. 

 Phenicopterus, 348. 

 Phlegethontia, 283. 

 Phoca, 414. 

 Phocasna, 408. 

 Phocidae, 413. 

 Phrynosoma, 320. 

 Phycis, 264. 

 Phyllodactylus, 319. 

 Phyllospondylous, 137. 

 Phyllostomidae, 388. 

 Physeter, 409. 

 Physeteridse, 409. 

 Physoclisti, 25, 254. 

 Physostomi, 255. 

 Pia mater, 57. 

 Pica, 391. 

 Picarias, 350. 

 Pickerel, 257. 

 Picus, 351. 

 Pig, guinea, 391. 

 Pigeon, 350. 



Pigs, 397- 

 Pike, 257. 

 Pillar cells, 73. 

 Pilot fish, 263. 

 Pineal eye, 85. 

 Pinnipedia, 413. 

 Pipa, 286. 

 Pipe fish, 258. 

 Pirate perch, 259. 

 Pisces, 227. 

 Pisiforme, 177. 

 Pituitary body, 52. 

 Placenta, 290, 373. 

 Placentalia, 375, 381. 

 Placodontia, 306. 

 Placodus, 3(36. 

 Placoid scales, 92. 

 Plagiaulax, 378. 

 Plagiostomi, 232. 

 Plagiotremata, 317. 

 Plaice, 265. 

 Plantain eater, 348. 

 Plantigrade, 361. 

 Plastron, 93, 308. 

 Platanista, 408. 

 Platalea, 348. 



Platanistidse, 408. 

 Platax, 263. 

 Platecarpus, 322. 

 Platessa, 265. 

 Platycephalus, 260. 

 Platycormus, 261. 

 Platydactylus, 319. 

 Platygonus, 397. 

 Platyops, 284. 

 Platyrhini, 415. 

 Platysomus, 251. 

 Plecotus, 387. 

 Plectognathi, 266. 

 Plesiosauria, 306. 

 Plesiosaurus, 306. 

 Plethodon, 285. 

 Pleuracanthus, 237. 

 Pieural cavity, 106. 

 Pleural layer, 8. 

 Pleurapophysis, 141. 

 Pleuraspidotheriidse, 393. 

 Pleurocentrum, 136. 

 Pleurodeles, 286. 

 Pleurodira, 311. 

 Pleurodont teeth, 294. 

 Pleuronectes, 265. 

 Pleuronectidas, 265. 

 Pleuropterygii, 237. 

 Plexus, choroid, 52. 

 Plexus, nerve, 48. 

 Plica semilunaris, 83. 

 Pliauchenia, 398. 

 Plioplatecarpidae, 322. 

 Plioplatecarpus, 322. 

 Pliosaurus, 307. 

 Ploughshare bone, 331. 

 Plover, 349. 

 Pneumatic duct, 25. 

 Pneumatocyst, 25. 

 Pneumogastric nerve, 63, 64. 

 Pocket gopher, 390. 

 Podiceps, 349. 

 Podocnemis, 311. 

 Poebrotherium, 398. 

 Poison teeth, 324. 

 Polar globule, 209. 

 Polistotrema, 224. 

 Pollachius, 264. 

 Pollack, 264. 

 Pollex, 176. 

 Polydactylus, 262. 

 Polymastodon, 378. 

 Polynemidae, 262. 

 Polyodon, 251. 



Polyodontidae, 251. 

 Polyonax, 317. 

 Polyprotodontia, 379. 

 Polypteridae, 250. 

 Polypterus, 250. 

 Pomacanthus, 262. 

 Pomacentridae, 261. 

 Pomatomidae, 263. 

 Pompano, 263. 

 Popliteal artery, 191. 

 Porcupine, 391. 

 Porcus, 397. 

 Pori abdominales, 107. 

 Porichthys, 266. 

 Porpoise, 408. 

 Portal system, 192. 

 Portal vein, 193. 

 Portheus, 256. 

 Postcardinal vein, 183, 193. 

 Postcava, 195. 

 Postclavicle, 169. 

 Post frontal, 161. 

 Postorbital, 161. 

 Post temporal, 169, 245. 

 Post trematic nerve, 63. 

 Postzygopophysis, 140. 

 Prairie dog, 390. 

 Pratincole, 349. 

 Precava, 197. 

 Precoces, 330. 

 Prefrontal, 161, 358. 

 Premaxillary, 161. 

 Premolars, 366. 

 Preoperculum, 161. 

 Presphenoid, 158. 

 Presternum, 356. 

 Pretrematic nerves, 63. 

 Prezygapophysis, 140. 

 Priacanthus, 259. 

 Primaries, 330. 

 Primates, 414. 

 Primitive streak, 7, 342. 

 Primitive groove, 7. 

 Primordial cranium, 150. 

 Prionotus, 260. 

 Pristidae, 239. 

 Pristiophoridae, 239. 

 Pristis, 239. 

 Proatlas, 143. 

 Proboscidea, 400. 

 Procamelus, 398. 

 Procartilage, 133. 

 Procellaria, 349. 

 Processus lalciformis, 231. 



