450 



Pennatulidae, 120. 

 Pennella, 348. 

 Pennellidae, 348. 

 Pen sac, 314. 

 Pentacrinus, 129, 130. 

 Pentamera, 415. 

 Pentamerus, 247. 

 Pentastoma, 364, 366, 399. 

 Pentastomidae, 366, 372. 

 Pentastoma, 396. 

 Pentatreraites, 128. 

 Pepsin, 7. 

 Peptone, 7. 

 Peranema, 55. 

 Peremeschko, 3. 

 Pereiopod, 355. 

 Perforata, 54, 116. 

 Perichaeta, 210. 

 Periderm, 85. 

 Peridinioca, 64. 

 Perigenic budding, 86. 

 Perigonium, 86. 

 Periosteum, 19. 

 Periostracum, 284. 

 IVripatiH, 205. 

 JYripkincta, 403. 

 Perisome, 124. 

 Perisphneria, 403. 

 JVrithccu, 112. 

 Peritreme, 285, 376, 394. 

 Peritricha, 66. 

 Perivisceral space, 31. 

 1'crla, 405. 

 I'erlidae, 405. 

 I'erlinus, 153. 

 Permian formation, 46. 

 Perna, 257. 

 Perophora, 233, 240. 

 Perosotrocha, 198. 

 Perrier, 141. 

 Persona, 11, 308. 

 Perspiration, 33. 

 Perty, 57. 

 Petalopus, 57. 

 Petalospyris, 62. 

 Peters, 191. 

 Petiole, 418. 

 Petricolidae, 270. 

 Petrobius, 402. 

 Pfliiger, 23. 

 Phacellophora, 105. 

 Phacus, 56. 

 Phagocata, 160. 

 Phalacridre, 417. 



Index. 



Phalaenidse, 411. 

 Phalangita, 375. 

 Phalangium, 366, 375, 389. 

 Phallusia, 237, 240. 

 Phanerocodonic, 86, 87. 

 Phanogenia, 131. 

 Phanoglene, 184. 

 Pharyngeal crop, 289. 

 Pharyngeidoe, 161. 

 Pharyngodon, 185. 

 rhascolosoma, 189, 192, 193. 

 Phasma, 403. 

 I'husniidx, 403. 

 Phenomena of life, I. 

 Pherusia, 222. 

 Philine, 305. 

 Philinidze, 305. 

 Philodina, 197. 

 Philodinida?, 197. 

 Philonexis, 376. 

 Philopteridae, 399. 

 Phlebenterata, 291. 

 Phlceothrips, 402. 

 Pholadacece, 271. 

 I'holadidoc, 271. 

 Pholas, 257. 

 1'holcus, 375. 

 Pholoe, 221. 

 Phorus, 310. 

 Phoronis,2i8. 



309- 



Phosphorescence, 261. 

 Photinus, 412. 

 Photoscopic eyes, 28. 

 Phoxochilus, 370. 

 Phreoryctes, 219. 

 Phragmocone, 314. 

 Phronima, 337, 361. 

 Phryganea, 393, 396, 406. 

 1'hrynidre, 377. 

 l^hthirius, 399. 

 Phthiriasis, 399. 

 Phylactotoemata, 230. 

 Phycochromacea, 25. 

 Phycogorgia, 122. 

 Phyllacanthidoe, 171. 

 Phyllactis, 114. 

 Phyllidiida, 306. 

 Phyllirhoe, 242, 303-4. 

 Phyllium, 403. 

 Phyllobothrium, 170. 

 Phyllocotyle, 174. 

 Phyllocyst, 98. 

 Phyllodoce, 221. 



