4.83 



INDEX TO VOL. XII. 



AcARIDES, new species of, 312. 

 Actiniadse, new species of, 41. 

 Actiniae, on the existence of siliceous 



spiculae in, 38. 

 Addison, W., on the sacculi of the Poly- 



gastrica, 101, 178. 

 Agate, on substances inclosed in, 148. 

 Alchemilla conjuncta and A. fissa, ob- 

 servations on, 74, 452. 

 Alder and Hancock, Messrs., on some 

 new British species of Calliopsea and 

 Eolis, and on the development and 

 structure of the nudibranchiate Mol- 

 lusca, 233. 

 Algae, freshwater, on some points in the 

 anatomy and physiology of, 20; on 

 some new genera of, 180 ; on the ani- 

 mal nature of the spores of, 203 ; on 

 the locomotive organs of the spores of, 

 435. 

 AUecula, new species of, 360. 

 Amphifetras, on the British species of, 



275. 

 Amphiura, description of the new genus, 



211. 

 Anarrhicus lupus, on the capture of, 297. 

 Animalcule, parasitic, on the human skin, 



description of an, 222. 

 Animalcules, on the oxygenation of water 



by means of, 205. 

 Animals, vegetation upon living, 427. 

 Annales des Sciences Naturelles for 1843, 



review of the contents of, 433. 

 Annulosa, descriptions of some new spe- 

 cies and varieties of, 342. 

 Anomalurus, description of the genus, 52. 

 Anthoceros, on the formation of cyto- 



blasts in the genus, 24. 

 Antilope Ogilbii, notice respecting, 57. 

 Arachnida, on the capture of small birds 

 by some species of, 81 ; on the struc- 

 ture and development of the nervous 

 and circulatory systems in, 223. 

 Argala migratoria, on the habits of the, 



168. 

 Astacus fluviatilis, on the development 



of, 148. 

 Atelecyclus, new species of, 345. 

 Auricula, description of new species of, 



437. 

 Avicula, on the affinities of, 385. 



Babington's, Ch. C, British Botany, re- 

 viewed, 49 ; on Alchemilla conjuncta 

 and A. fissa, 452. 

 Baboons, new species of, 446. 

 Baerensprung, Dr. von, Excerpta Zoolo- 



gica, 427. 

 Bailey, G. W., on the existence of sili- 

 ceous spiculae in Actiniae, 38. 

 Ball, R., on the occurrence of the Cucu- 



lus glandarius in Britain. 149. 

 Barry, Dr. M., on the blood-corpuscles, 

 227. 



Barton, Bernard, lines addressed by, to 

 the Rev. W. Kirby, 76. 



Biddulphia, on the British species of, 273. 



Birds, of Ireland, 31, 254 ; new species 

 of Australian, 58 ; list of, obtained in 

 the vicinity of Calcutta, 90, 165, 229 ; 

 new species of, from Fernando Po, 131, 

 from the Niger, 133 ; list of Chinese, 

 220 ; occurrence of rare British, 297 ; 

 descriptions of new, 366, 440, 477, 

 478 ; on the blood-corpuscles of, 367. 



Blood-corpuscles, on the, 130, 227, 367. 



Blyth, E., on the affinities of Glareola 

 torquata, 74 ; list of birds obtained in 

 the vicinity of Calcutta, with remarks 

 on their habits, 90, 165, 229. 



Bombycidae, new species of, 344. 



Bombyx, new species of, 264. 



Bones, observations on some fossil, 70. 



Botanical Society of Edinburgh, proceed- 

 ings of the, 130, 450. 



Botanical Society of London, proceedings 

 of the, 68, 129, 212, 294,449. 



Botanical travellers, information respect- 

 ing, 352. 



Bristol, on the mosses found in the 

 neighbourhood of, 213. 



British plants, geographical distribution 

 of the, noticed, 50. 



Bromfield, Dr., on the discovery of Cla- 

 thrus cancellatus in the Isle of Wiirht, 

 451. 



Brown, J., on some Pleistocene deposits 

 near Copford, 476. 



Brown, Capt. T., on some new species of 

 the genus Pachyodon, 390. 



Bulimus, new species of, 140, 289, 365. 



Buprestidae, new species of, 342. 



Bustard, little, notes on the, 258. 



