INDEX, 



535 



Nerve, on the structure and functions 

 of, 71. 



Nictner, J., on new Ceylon Coleo- 

 ptera, 177, 273. 



Norman, G., on some new and rare 

 Diatomacea;, 158. 



Notomastus, characters of the new 

 {>enus, 155. 



Ochthephilus, characters of the new 

 genus, 275. 



Octojjus vulgaris, observations on, 336. 



Oosoraa, description of the new genus, 

 368. 



Oryx, new species of, 466. 



Otolicnus Peli, on the comparative 

 anatomy of, 50. 



Owen, Prof., on the anatomy of the 

 Great Ant-eater, 69; on the placenta 

 of the Elephant, 147 ; on Placodus 

 Andriani, 3i)9. 



Pachj'rliamphus, new species of, 398. 



Paget, J., on the cause of the rhyth- 

 mic motion of the heart, .530. 



Palrcaster, new species of, 325. 



Pala;ocoma, description of the new 

 genus, 327. 



Palajodiscus, description of the new 

 genus, 332. 



Palasterina, new species of, 327. 



Papiho, new species of, 385. 



Paradisea apoda, on the habits of the, 

 411. 



Parthenogenesis in Moths and Bees, 

 on, 48 ; in plants, 204. 



Earns meridioualis, observations on, 

 381. 



Peach, C. W., on the occurrence of 

 the Harvest mouse in Cornwall, "J"] ■ 



Phaidinus, new species of, 212. 



Phaleria, new species of, 505. 



Phccbe, new species of, 213. 



Picea nobihs, on the insect which in- 

 fests the seeds of, 150. 



Pieris, new species of, 383. 



Pigeon, description of a new, 506. 



Pinna nobilis, observations on, 336. 



Pitta, new species of, 381. 



Placodus Andriani, on the reptilian 

 nature of, 399. 



Planariffi, on the terrestrial, 1. 



Plants, on true parthenogenesis in, 

 204 ; on the process of fecundation 

 in, 241, 344, 439 ; on certain glan- 

 dular structures in, 303 ; habitats 

 for rare British, 303; on circvdation 

 in, 467 ; 626. 



Pleuracanthus, Diplodus and Xena- 

 canthus, on the unity of the genera, 

 423. 



Polypes, descri|)tions of new, 238. 



Pontella, new British species of, 406. 



Pontellina, new British species of, 407. 



Power, Madame J., on the habits of 

 various mai-ine animals, 334 ; on 

 the habits of the Marten, 416. 



Protaster, new species of, 331. 



Pruning, on the production of varieties 

 and monstrous flowers by, 341. 



Pteraster railitaris, on the develop- 

 ment of, 133. 



Purpura, on the development of, 1 7, 



Pygocephalus Cooperi, description of, 

 ■ 235 ._ 



Pyrula, new species of, 523. 



Radlkofer, Dr. L., on true partheno- 

 genesis in plants, 204 ; on fecun- 

 dation in the vegetable kingdom, 

 and its relation to that in the ani- 

 mal kingdom, 241, 344, 439. 



Reeve, L., on some new species of 

 shells, 522. 



Rhizoxenia, new species of, 238. 



Rissoa pulcherrima, on the animal of, 

 262. 



Rotifera, on the sexual relations of 

 the, 288. 



Royal Institution, proceedings of the. 



Royal Society, pi'oceedings of the, 

 141,297. 



Sabellides, new species of, 156. 



Salpaj, on the alimentary matter of 

 the, 265. 



Salter, J. W., on some new palaeozoic 

 Star-fishes, 321. 



Sands of the inferior oolite, on the, 

 170. 



Sarcina, new species of, 514. 



Sarcogorgia, characters of the new 

 genus, 519. 



Sars, M., on new Annelides, 165 ; on 

 new Poh'pes, 238 ; on a new Star- 

 fish, 319. 



Schmidl, Dr., on the fauna of the 

 Baradla Cavern, in Hungary, 79. 



Schultze, Dr. M., on the terrestrial 

 Planaria;, 1. 



Sclater, P. L., on a new Tanager, 

 319; on the genus Camptostoma, 

 470 ; on new birds from Bogota, 

 472 ; on some apparently new spe- 



