INDEX. 



535 



Nerve, on the structure and functions 



of, 71. 

 Nietner, J., on new Ceylon Coleo- 



ptera, 177, 273. 

 Norman, G., on some new and rare 



Diatomacese, 158. 

 Notomastus, characters of the new 



genus, 155. 

 Ochthephilus, characters of the new 



genus, 275. 

 Octopusvulgaris, observations on, 336. 

 Oosoma, 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, 59; on the placenta 



of the Elephant, 147 ; on Placodus 



Andriani, 399. 

 Pachyrhamphus, new species of, 398. 

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

 mic motion of the heart, 530. 

 Pala^aster, new species of, 325. 

 Palseocoma, description of the new 



genus, 327. 

 Palseodiscus, description of the new 



genus, 332. 

 Palasterina, new species of, 327. 

 Papilio, new species of, 385. 

 Paradisea apoda, on the habits of the, 



411. 

 Parthenogenesis in Moths and Bees, 



on, 48 ; in plants, 204. 

 Parus meridionalis, observations on, 



381. 

 Peach, C. W., on the occurrence of 



the Harvest mouse in Cornwall, "]*] , 

 Pha3dinus, new species of, 212. 

 Phaleria, new species of, 505. 

 Phcebe, new species of, 213. 

 Picea nobilis, 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 reptiUan 



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 circulation 

 in, 467; 526. 



Pleuracanthus, Diplodus and Xena- 

 canthus, on the unity of the genera, 

 423. 



Polypes, descriptions of new, 238. 



Pontella, new British species of, 406. 



Pontellina, new British species of, 407. 



Power, Madame J., on the habits of 

 various marine 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 militaris, on the develop- 

 ment of, 133. 



Purpura, on the development of, 17, 

 127. 



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, proceedings of the, 

 141, 297. 



Sabellides, new species of, 156. 



Salpse, 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, 155 ; on 

 new Polypes, 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 

 Planarise, 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- 



