594 



INDEX. 



Nematorhyncba, 509, 575. 

 Neinatoscolices, 575, 5^0. 

 Nemertidae, 165, 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. 



O 



OCTOCORALLA, 143, 146. 



Octopoda, 452, 460. 



Odontophora. 404, 417. 419, 573. 



Obgocbaeta, 66, ISO, 193, 198, 199, 213, 574. 



Onchidum, 60. 



Oniscidae, 316. 



Oniscus, 219, 313. 



Ophiodes, 119. 



Ophiolepis ciliata, 484. 



Ophiuridea, 466, 4S2. 



Ophrydidae, 100. 



Opisthobranchiata, 437, 438. 



Opistbomum, 159. 



Orbulina. 79. 



Orders, 23. 



" Organized." 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. 



Ostraea, 408-417. 



Oviparous animals, 67. 



Ovoviviparous animals, 67. 



Oxidation, waste of living matter by, 10. 



Oxvuris. 547. 



Oyster, 408. 



P 



Pagttrit)^;, 290. 



Palaeocyclus, 153. 



Palaeontology. See Fossils. 



Palinurus vulgaris, 293. 



Paludina, 180, 181, 425, 426. 



Pangenesis, 41. 



Paramcecium, 4<5, 96-100. 



Parasites. 45, 67, 171, 181-183, 187, 237, 241, 



242, 253, 262, 263, 314, 331,334,368, 387, 



416, 440, 550, 553. 

 Pasteur's experiments, 12, 13. 

 Patellidac. 438. 444. 

 Pecten, 408-416. 

 Pectostraca. 253. 

 Pedalion, 170, 171. 

 Pfilicellina. 571, 582. 

 Pedicels, 54. 



Pediculina. 362, 368. 

 Pelagia, 132, 133. 

 Peltogaster paguri, 262. 

 Peneus, 300-302. 

 Penicillium, 45. 

 Pennatulidae, 145. 

 Pentacrinus. 500. 

 Pentastornida, 225, 234, 573. 

 Pentastomum taenioides, 335. 

 Pentremites, 509. 

 Perennibranchiata. 5S. 

 Perforata, 79, 146-150, 153. 

 Peridineae, 76, 93. 

 Peripatidea, 225, 534, 573. 

 Peritricba, 95, 96, 100. 

 Perla nigra, 364. 

 Peroniadae, 440. 

 Peronia verruculata, 443. 

 Peronospora, 45, 46. 

 Phalangidae, 326. 

 Pballusia, 515, 520. 

 Pbaryngopneusta, 577. 

 Pbaryngopneustal series, 581. 

 Pbolas, 406, 408, 417. 

 Phoronis, 217, 218. 

 Pbrosina, 315. 

 Pbrynidse, 326. 

 Phvlactolaemata, 572. 

 Phyllodoee, 214. 



' viridis, 211. 



Phvllopoda, 242. 

 Phyllosomata, 307, 303. 

 Pbylogeny, 42. 

 Physalia, 115, 12=*, 130. 

 Phvsemaria, 552, 574, 575, 585. 

 PhVsiology. 9. 16, 26. 

 Physopborida?, 117, 128-132. 

 Pilidium gyrans, 165, 166. 

 Pisidium, 414, 415. 

 Placenta, 67, 101. 

 Plagiostome fishes. 67. 

 Planaria, 161. 192,575. 



dioica. 161. 



Plants. 31-33. 44, 6S. 

 Pleurobrancbia, 155. 

 Pleurodictyon, 153. 

 Plumatella repens, 390, 391. 

 Plumularidae, 118. 

 Pocillopora, 148. 

 Podophrya fixa, 94. 

 Podophtbalmia, 230, 264. 

 Poduridae, 382. 

 Poecilopoda, 228. 

 Poban vesicles, 468, 483. 

 Polvarthra. 171. 

 Polycelis, 192. 



laevigata, 161. 



Polycbaeta, 66, 189, 199, 200, 207, 574, 575. 



Polycistina, S3. 



Polygordius. 575. 



Polykricos, 96. 



Polymyaria, 549. 



Polyniie, 200. 



lunulata, 210. 



squamata, 200-207, 212. 



Polyophthalmus, 200, 212. 

 Polypes, 31, 62, 110. 

 Pol'ypide, 390. 

 Pofvpite, 110. 

 Pol'yplacopbora, 430, 433, 573. 



