INDEX. 



479 



Pines, on New Zealand and Norfolk 

 Island, 454. 



Planorbis, new species of, 358. 



Plantes indigenes du royaumed' Alger, 

 catalogue des, notice of, 398. 



Plants, on the periods of flowering 

 of certain, 223; habitats for rare 

 British, 137, 278, 344 ; on an unde- 

 scribed genus of orchideous, 453. 



Plataspis, new species of, 66. 



Pleomorpha, new species of, 61. 



Pleurotoma, new British species of, 

 311. 



Poephila, new species of, 135. 



Portlock's, J. E., addendum to the 

 birds of Corfu, 137. 



Prionites bahamensis, on the habits 

 of the, 79. 



Pupa, new species of, 269. 



Pyrula, new species of, 273. 



Quekett, Mr. J., on the intimate struc- 

 ture of bone, 136. 



Ramsay, A. C., on the causes and 

 amount of geological denudations, 

 275. 



Rat, description of a new, 351. ■ 



Rays, on a peculiar organ found in 

 the, 19. 



Reeve, L., on the calcifyuag functions 

 of the Cowry and the Olive, 197 ; 

 on some new species of Chama, 

 270 ; on new species of shells col- 

 lected during the voyage of H.M.S. 

 Samarang, 416; on Chiton and Chi- 

 tonellus, 454. 



Rhyzophagus cyaneipennis, descrip- 

 tion of, 379. 



Richardson, J., on the genus Calo- 

 ptylum, 138. 



Rissoa, new British species of, 310. 



Roberts, Mr. G., on the habits of the 

 limpet, 70. 



Robin, M., on a peculiar organ found 

 in the Rays, 19. 



Rcemer, Dr. F., on the geology of 

 Texas, 426. 



Rook, on the habits of the, 373. 



Roses, monstrous, 471. 



Royal Institution, proceedings of the, 

 202, 274. 



Rubi, on the British, 1 7, 83. 



Saint- Hilaire, M. Auguste de, on the 

 Minhocao of the Goyanese, 140. 



Salpomis, characters of the genus, 352. 



Salter's,^ Mr., Supplement to English 

 Botanv, noticed, 343. 



Samara laeta, on, 457. 



Samouelle, G., notice of the late, 196. 



Saunders, Mr., on some New Holland 



Cryptocephalidae, 61. 

 Savage, Dr., on some of the insects of 



Cape Palmas, 67. 

 Schmidt, Dr. O., on Opalina Nai'dos, 



an entozoon found in the Naiadae, 



284. 

 Schonherr, M., notice respecting, 139. 

 Scutelleridae, descriptions of new, 66. 

 Sericomis, new species of, 349. 

 Sertularia elongata, on, 425. 

 Shells, descriptions and notices of Bri- 

 tish, 309, 334 ; new, 96, 262, 270, 



310, 346, 358, 416, 425. 

 Silurian rocks, on the discovery of, in 



Cornwall, 326. 

 Smicorhina, characters of the new ge- 

 nus, 66. 

 Smith, J. T., on the formation of the 



flints of the upper chalk, 1, 289. 

 Snow, on the formation of cyUndrical 



masses of, 285. 

 Sowerby's, Mr., Supplement to En- 

 glish Botany, noticed, 343. 

 Sowerby, G. B., on a new species of 



Cowry, 346. 

 Stair, Rev. J. B., account of Palolo, a 



sea-worm eaten in the Navigator 



Islands, 409. 

 Strepsiptera, history of the, 347. 

 Strickland, H. E., notes on the doves 



and pigeons of India, 41, 98, 179 ; 



on certain species of birds from 



Malacca, 129. 

 Strix flammea, on the habits of, 371. 

 Succinea, new species of, 263. 

 Sundevall, C. J., on the birds of Cal- 

 cutta, 87, 164, 232. 

 Synallaxis terrestris, on the habits of, 



80. 

 Tein-ching, or Chinese indigo, notice 



of, 139. 

 Texas, on the geology of, 426. 

 Thompson, W., on the periods of 



flowering of certain plants in the 



spring of 1846, 223. 

 Thwaites, G. H. K., on the structure 



and movements of Bacillaria para- 



doxa, Gmehn, 200. 

 Trachyphloeus, on the British species 



of, 217. 

 Trees, on the defohation of, 277. 

 Treron, on the Indian species of, 42. 

 Trichina spirahs, observations on, 358. 



