430 



INBEX. 



iiovorum characteres, 14 ; History of 

 British Ferns, reviewed, 316. 



Ogilby, Mr., characters of a new Squirrel, 

 62. 



Olfers, M. von, on a new species of fossil 

 Dolphin, 150. 



Ophiocoma, new species of, 99. 



Opossums, notes on the habits of, 343. 



Orchidaceae, characters of some new spe- 

 cies of, 115. 



Orkney Natural History Society, proceed- 

 ings of, 137, 360. 



Osborne, J., on Aristotle's History of 

 Animals, 358. 



Otter, descriptions of four new species of, 

 27. 



Otters of Guiana, on the habits of the, 282. 



Owen, Prof., on the application of the mi- 

 croscope to the determination of fossil 

 remains, 65 ; on the bone of an un- 

 known Struthious bird, of large size, 

 from New Zealand, 166. 



Papilionaceae, on the irregular form of the 

 flowers of, 153. 



Patella, new species of, 108. 



Patterson, R., on the Bolina Hibernica, 67. 



Peccari, 401. 



Pelexia, new species of, 116. 



Perameles, new species of, 150. 



Peridersea, characters of the new genus, 

 39. 



Pfeiffer, Dr. L., on the family Helicidae, 

 and description of a new genus, 238. 



Phloeomys, new species of, 58. 



Phlyctfenodes, characters of the genus, 20. 



Phoracantha, remarks on the genus, 19. 



Pinus Pumilio, observations on, 147. 



Pithanotes, new species of, 15. 



Planaria vittata, description of, 248. 



Plants, collected in Southern Spain and 

 Portugal, synopsis of the, reviewed, 38 ; 

 on the organs of secretion of, 49 ; on the 

 development of the vascular tissue of, 

 66 ; descriptions of some new Brazilian, 

 132; on the structure of the ovule in, 

 162; on the sexes of, 226; notes on 

 some viviparous, 297. 



Pleurothallis, new species of, 115. 



Pleurotoma, new species of, 107. 



Polycera, new species of, 92. 



Polygastrica, Mr. Forbes on, 364. 



Polvgonura viviparum, mode of reproduc- 

 tion in, 298. 



Polynoe scolopendrina, description of, 307. 



Polype, on a remarkable Hydroid, 309. 



Potamogeton Pra;!ongus, 422. 



Potos caudivolvulus, on the habits of, 29. 



Pteroglossus, new species of, 59. 



Quekett, E. J., on tlie development of the 

 vascular tissue of plants, 66 ; on a cer- 

 tain crystalline matter found on the 



recently cut wood of the Red Cedar, 



131. 

 Ranunculacese, on the structure of the 



ovule in the, 165. . 

 Reptiles, Cuban, on the habits of the, 



108. 

 Rhagiomorpha, new species of, 21. 

 Rhogmus, description of the new genus, 



323. 

 Rissoa, new species of, 97, 107. 

 Rodent, on a new species of, 57. 

 Rodentia, Waterhouse on, 418. 

 Rodriguezia, new species of, 116. 

 Ross and Dickson, on a collection of birds 



from Erzeroom, 350. 

 Royal Irish Academy, proceedings of, 67, 



358, 

 Rylands, T. G. R., on Aspidium lobatum, 



356. 

 Sceleocantha, new species of, 14. 

 Schleiden, Prof. M. J., on the structure 



of the cellular membrane in Mosses aqdi 



Hepaticse, 73 ; on the structure of the 



ovule in plants, 162. 

 Saxifraga cernuosa, mode of reproduction 



in, 298. 

 Schomburgk, R., account of his expedition 



into Guiana, 29, 282, 343, 399 ; on the 



Curata, of the culm of which the Indians 



form their blow-pipe, 46 ; on the Snake- 

 nut tree of Guiana, 202. 

 Schuckard, W. E., monograph of the Do- 



rylidae, 188, 258, 315,396. 

 Scrophularia aquatica, remarks on, 1. 

 Shells, a Manual of the British Land and 



Freshwater, review of, 288. 

 Selby, P. J., on the effects produced upon 



animal and vegetable life by the winter 



of 1838, 334. 

 Snake-nut, notice respecting the, 70 ; de- 

 scription of the tree, 202. 

 Society, Microscopical, 415. 

 Spiral cells, occurrence of in the seeds of 



Acanthaceae, 135. 

 Squirrels, on two new species of, 62. 

 Staphylinorum, Genera et Species, auct. 



G. F. Erichson, reviewed, 127. 

 Stelis, new species of, 115. 

 Stemoptera, characters of the new genus, 



134. 

 Stenoderus, new species of, 21. 

 Stevens, C. A., on Scrophularia aquatica, 



1. 

 Stickleback, on the nests of the fifteen- 



spined, 148. 

 Taylor, T., on the Fungi of the North of 



Ireland, 3. 

 Tessaromma, descriptions of some new spe- 

 cies of, 20. 

 Templeton, J., catalogue of the species of 



Fungi of the North of Ireland, 3. 



