INDEX. 



Poritidce, 97, 100. 



Porospongia, 537. 



Portland Stone, 536. 



Posidonomya, 223, 224. 



Post-Glacial deposits, 560. 



Post-Glacial Mammals, 560. 



Post-Pliocene deposits, 557. 



Post-Pliocene Mammals, 557. 



Potamides, 252. 



Poteriocrinus, 126. 



Pothocites, 475, 494. 



Potsdam Sandstone, 513, 514. 



Prce-arcturus, 177. 



Prse-Glacial deposits, 558. 



Prse-Glacial Mammals, 558. 



Prestwichia, 175. 



Primitia, 156, 157. 



Primnoa, 99. 



Primordial Zone, 167, 168, 513, 514. 



Prionastrcea, 537. 



Pristerodon,'364. 



Proboscidea, characters of, 442 ; distribu- 

 tion of, in time, 443. 



Proboscis, of Crinoids, 119, 121. 



Proccelia (Crocodilia), 366, 367. 



Procyon, 451. 



Producta, 210, eil, 530. 



Productidce, 202, 210. 



Proetidce, 171. 



Proetus, 171. 



Prongbuck, 437, 438,. 439. 



Pro-ostracum, 297. 



Prosobrarichiata, 245. 



Prosoponiscus, 177, 529. 



Protarea, 97. 



Protastcr, 116, 117. 



Proteacece, 499, 5i)2. 



Protichnites, 167. 



Protolycosa, 182. 



Protopithecus, 465. 



Protopteri, 842. 



Protopteris, 482. 



Protornis, 390, 395. 



Protorosaurus, 356, 362, 530. 



Protoseris, 537. 



Prototaxites, 474, 482. 



Protovirgularia, 101. 



Protozoa, characters of, 59 ; divisions of, 

 59 ; distribution of, in time, 59, 60. 



Prunoeystites, 133. 



Psammobia, 237. 



Psamrnodus, 338, 339. 



Psaronius, 474, 475, 482, 485, 495. 



Pseudocrinus, 130, 133. 



Pseudoneuroptera, 185. 



Pseudoniscus, 174. 



Pseudoscorpionidce, 182. 



Psilocephalus, 169 



Psilophyton, 474, 480-482. 



Psittacidce, 395. 



Psolus, 135. 



Pteraspis, 331, 332, 337. 



Pterichthys, 331-333. 



Pterinea, 224. 



Pteris, 486. 



Pteroceras, 246, 247. 



Pterodactylus, 374, 375. 



Pterophyllum, 476, 494, 497, 533. 



Pteropidce, 461. 



Pteropoda, characters of, 269 ; shell of, 

 269 ; orders of, 269 ; distribution of, in 

 time, 269, 270. 



Pterosauria, characters of, 374 ; distribu- 

 tion of, in time, 375. 

 Pterotheca, 270. 

 Pterygotus, 172, 173. 

 Ptilodictya, 196. 

 Ptilograpsus, 78, 79. 

 Ptilomaster, 116. 

 Ptilopora, 196. 

 Ptychoceras, 276, 288, 293 

 Ptychodus, 339, 340. 

 Pidmonifera, 241, 245, 265. 

 Pt*pa, 246, 267, 267. 

 Purbeck beds, 536. 

 Purpura, 248. 

 Purpurina, 248. 

 Purpuroides, 638. 

 Pycnodontidce, 325. 

 Pygaster, Io9. 

 Pygaulus, 109. 

 Pygidium, 161, 164. 

 Pygocephahis, 177. 

 Pygopterus, 530. 

 Pygurus, 109. 

 Pyramidellidce, 251. 

 Pyrgia, 97. 

 Pyrgoma, 152. 

 Pyrina, 109. 

 Pyrula, 247. 

 Python, 355, 360. 



Quadrumana, characters of, 464 ; sections 

 of, 464 ; distribution of, in time, 464-466. 

 Quebec group, 513, 514. 

 Quercus, 499, 500. 



Radiata, 73. 



Jiadiolaria, characters of, 66 ; distribu- 

 tion of, in time, 66. 



Radiolites, 232. 



.Ram, 341. 



Rallus, 392. 



Ramphorhynchw, 374, 376. 



.Rawa, 349. 



Ranella, 247. 



Raniceps, 352. 



Raphiosaurus, 364. 



Raptores, 395. 



Rasores, 294. 



Rastrites, 80, 84. 



Ratitce, 893. 



Rays, 341, 342. 



Recent peripd,548, 558. 



Receptaculites, 71, 72. 



Red Coral, 102. 



Red Crag, 555. 



Reef-building Corals, 95, 96. 



Regular Echinoids, 107. 



Rein-deer, 436. 



Reptilia, characters of, 353 ; orders of, 

 355 ; distribution of, in time, 356. 



Requienia, 230. 



Retepora, 196. 



Reticulipora, 544. 



Retiolites, 80. 



Retzia, 206. 



Rhabdopleura, 80, 194. 



Rhsetic beds, 531. 



Rhamphastidce, 395. 



.R/iea, 394, 



Rhinoceridce, 424. 



Rhinoceros, 424-426. 



Rhinolophidce, 461. 



