594 



INDEX. 



Nematorhyncha, 569, 575. 

 Neuiatoscoliees, 575, 580. 

 Nemertida?, 105, 16(5. 

 Neomenia, 571. 

 Nephelis, 192. 

 Nerve, '27, 29. 

 Nervous system, 61. 

 Neuroptera, 366. 375, 377. 

 Noctiluca, 46, 90-92. 

 Notodelphys, 241, 242. 

 Notommata tardigrada, 170. 

 Nova Scotian coal fossils, 342. 

 Nucleus, 17, 48, 74. 

 Nucula, 408, 416. 

 Nudibranchiata, 424, 437, 438. 

 Nullipore, 150, 151. 

 Nummulites, 79. 

 Nyctotherus, 97, 98. 



Ootocoralla, 143, 146. 



Octopoda, 452, 460. 



Odontophora, 404, 417, 419, 573. 



Oligochseta, 66, 189, 193, 198, 199, 213, 574. 



Onchidum, 60. 



Oniscidae. 316. 



Oniscus, 219, 313. 



Ophiodes, 119. 



Ophiolepis ciliata, 484. 



Ophiuridea, 466, 482. 



Ophrydidae, 100. 



Opisthobranchiata, 437, 438. 



Opisthomum, 159. 



Orbulina. 79. 



Orders, 23. 



" Organized. 1 ' meaning of, 15. 



Organs, 28, 64, 65. 



Origin of living matter, 41. 



" Origin of Species," 37. 



Orthidae, 403, 404. 



Orthoptera, 364, 366, 375, 377, 381, 383. 



Ossicula auditus. 65. 



Ostracoda, 221, 251. 



Ostnea, 408-417. 



Oviparous animals. 67. 



Ovoviviparous animals, 67. 



Oxidation, waste of living matter by, 10. 



Oxyuris, 547. 



Oyster, 408. 



PAGrRiD^;, 299. 



Palaeocyclus, 153. 



Palaeontology. See Fossils. 



Palinurus vulgaris, 293. 



Paludina, 180. 181, 425, 426. 



Pangenesis, 41 . 



Paramoecium, 48, 96-100. 



Parasites, 45, 67, 171, 1S1-183, 187, 237, 241, 



242, 253, 262, 263, 314, 331,334,363, 3S7, 



416, 440, 550, 553. 

 Pasteur's experiments, 12, 13. 

 Patellidae. 438. 444. 

 Pecten, 408-416. 

 Pectostraca, 253. 

 Pedalion, 170, 171. 

 Pedicellina. 571, 5S2. 

 Pedicels, 54. 



Pediculina, 362, 368. 

 Pelagia, 132, 133. 

 Peltogaster paguri, 262. 

 Peneus, 300-302. 

 Penicillium, 45. 

 Pennatulidae, 145. 

 Pentacrinus. 500. 

 Pentastomida, 225. 234, 573. 

 Pentastomum taenioides, 335. 

 Pentremites, 509. 

 Perennibranchiata. 58. 

 Perforata, 79, 146-150, 153. 

 Peridineae, 76, 93. 

 Peripatidea. 225, 534, 573. 

 Peritricha, 95, 96, 100. 

 Perla nigra, 364. 

 Peroniada?, 440. 

 Peronia verruculata, 443. 

 Peronospora, 45, 46. 

 Phalangidae, 326. 

 Phallusia, 515, 520. 

 Pharyngopneusta, 577. 

 Pharyngopneustal series, 581. 

 Pholas, 406, 408, 417. 

 Phoronis, 217, 218. 

 Phrosina, 315. 

 Phrynidae, 326. 

 Phylactolaemata, 572. 

 Phyllodoce, 214. 



viridis, 211. 



Phvllopoda, 242. 

 Pbyilosomata, 307, 803. 

 Phylogenv. 42. 

 Pbysalia, 115. 12^, 130. 

 Phvsemaria, 552. 574, 575, 585. 

 Physiology, 9, 16, 26. 

 Physopnoridaa, 117. 128-132. 

 Pilidium gvrans, 165, 166, 

 Pisidium, 414. 415. 

 Placenta, 67, 101. 

 Piagiostome fishes. 67. 

 Planaria, 161. 192, 575. 



dioica. 161. 



Plants. 31-33. 44, 68. 

 Pleurobranchia, 155. 

 Pleurodictvon, 153. 

 Plumatella repens, 390, 391. 

 Plumularida?, 118. 

 Pocillopora, 148. 

 Podophrva fixa, 94. 

 Podophthalmia, 230, 264. 

 Poduridae. 3S2. 

 Pceeilopoda, 22S. 

 Polian vesicles. 468, 483. 

 Polvarthra. 171. 

 Polycelis, 192. 



laevigata, 161. 



Polvchaeta. 66. 1S9, 199, 200, 207, 574, 575. 



Polycistina, 83. 



Polvffordius. 575. 



Polykricos, 96. 



Polvmvaria. 549. 



Polynoe, 200. 



lunulata, 210. 



squamata, 200-207. 212. 



Polyophthalmus, 200, 212. 

 Polypes, 31, 62, 110. 

 Polypide. 890. 

 Polvpite, 110. 

 Pol'vplacopbora, 430, 433, 573. 



