524 



INDEX. 



Pdtastes, i. 233. 



Peltocaris, i. 347, 348, 349. 



Peltoceras, ii. 83. 



Pen, of Cuttle-fishes, ii. 55, SS. 



Peneroplidea, i. 106. 



Penerojdis, i. 108, 110. 



Pennatulidce, i. 219. 



Pentacrinidas, i. 282. 



Pentacriims, i. 267, 268, 271, 282, 283. 



Pentalophodon {Mastodon), ii. 387. 



Pentamerella, i. 452. 



Pentameridce, i. 440. 



Pentamerus, i. 459, 451. 



Pentatremites, i. 304. 



Pentrtmites, i. 299, 300, 301. 304. 



Perameles, ii. 289, 298. 



Peratherium, ii. 293. 



PercJixerus, ii. 347. 



Percidce, ii. 128. 



Perdicidce, ii. 262. 



Perennibranchiata (Amphibia), i. 174, 



175. 

 Perforata (Foraminifera) , i. 99, 106, 



113 ; {Zoantharia), i. 180, 188 ; cliar- 



acters and distribution, i. 195 ; families 



of, i. 196-198. 

 Periaster, i. 243. 

 Pericosmus, i. 243. 

 Peridinium, i. 98. 

 Periechocrinus, i. 278. 

 Perigoninnis, i. 155. 

 Peripatus, i. 403. 

 Perischodomus, i. 237. 

 Perischoechinidai, i. 230, 234. 

 Perisphinctes, ii. 83. 

 Penssodactyla, ii. 319. 

 Persia, i. 479, 480, 481. 

 Pernopecten, i. 474. 

 Pernostrea, i. 472. 

 Peronella, i. 136. 

 Peronosporites, ii. 433. 

 Petalodonts, ii. 160. 

 Petalodiis, ii. 159, 160. 

 Petraia, i. 189, 212. 

 Petraster, i. 250. 

 Petricola, i. 504. 

 Petrodus, ii. 154. 

 PetrospongiadcB, i. 136. 

 PezopJmps, ii 263, 264. 

 Phacopidce, i. 363, 368. 

 Phacops, i. 353, 354, 355, 363, 368, 369. 

 Phaedra, i. 389. 

 Phalangidce, i. 399, 401. 

 Phalangistidce, ii. 289. 

 Phanerogams, ii. 429. 

 Phaneropleurini, ii. 140, 145. 

 Phaneropleuron, ii. 140, 142, 145. 

 Pha'tyngobranchii, ii. 120, 123. 

 Rhascoloviys, ii. 289, 294. 

 ^Thascolotheriuvi, ii. 284, 291, 293. 

 Phusianella, ii. 27, 28. 

 Pliasianidce, ii. 262. 

 PhilUpsastroia, i. 210, 215. 

 Phillipsia, i. 363, 370, 371. 

 Phimocrinus, i. 282. 

 Phlelopteris, ii. 467. 



PhocidcR, ii. 392, 393. 

 Pholmlidce, i. 469, 510. 

 Pholadomya, i. 509. 

 PAoZas, i. 470, 510. 

 Pholiderpeton, ii. 184. 

 PhoUdogaster, ii. 181, 184. 

 Pholidosaurus, ii. 209, 212. 

 Phormosmrm, i. 234. 

 Phorus, ii. 22, 23. 

 Phosphate of Lime, i. 20, 21. 

 Phragmoceras, ii. 69, 71. 

 Phrynus, i. 400, 401. 

 Phylactolcemata, i. 419. 

 I'hyllldiadui, ii. 6. 

 Plu/lloceras, ii. 82. 

 Phyllodocites, i. 317, 321, 322. 

 Phyllograptus, i. 170, 171. 

 Phyllopoda, characters of, i. 346 ; dis- 



ti'ibution of, in time, i. 345. 

 Phyllopora., i. 421. 

 Phyllvsoma, i. 392. 

 Phyllostomidce, ii. 412. 

 Phyllostoma, ii. 413. 

 PhyllotetUhis, ii. 90. 

 Physa, ii. 7, 45. 

 Physeter, ii. 314. 

 I-'hyseteridce, ii. 314. 

 Physophoridce, i. 153, 154, 168. 

 Physostoinata, ii. 125. 

 Phytojms, ii. 441. 

 Picus, ii. 265. 

 Pierince, i. 408. 

 Pileolus, ii. 26. 

 Pileopsis, ii. 33. 

 Pinacoceras, ii. 82. 

 Pinites, ii. 434, 461. 

 Pmwa, i. 469, 482. 

 Pinnidce, i. 482. 

 Pinnigrada, ii. 391, 392. 

 Pinnipedia, ii. 391. 

 Pinnularia, ii. 448. 

 Pisania, ii. 9. 

 Pisces, characters of, ii. 109-119; orders of, 



ii. 124 ; distribution of, in time, ii. 119. 

 Pisidium, i. 499. 

 Pistosaurus, ii. 221. 

 Placodv.s, ii. 221. 

 Placoganoids, ii. 134. 

 Placoidei, ii. 110. 

 Placoid scales, ii. 110. 

 Placoparia, i. 377. 

 Placuna, i. 473. 

 Placunopsis, i. 473. 

 Plagiaulax, ii. 284, 292, 293 

 Plagiostoma, i. 475. 

 Plagiostoini, ii. 153, 156. 

 Planolites, i. 320. 

 Planorhis, ii. 45. 

 Planorbidina, i. H7. 

 Plantigrada, ii. 391, 393. 

 Plasmopora, i. 222. 

 Platanus, ii. 469, 473, 474. 

 Platux, ii. 129. 

 Platephemera, i. 405. 

 Platyceras, ii. 33. 

 Platycrinidw, i. 278. 



