•19') 



INDEX TO VOL. XV 



ACR/EA, new species of, 'SH6. 

 Aclcon viridis, notice respecting, 327. 

 jEgidimn, new s|)ecies of, 440. 

 ^■Egothcles, new species of, 132. 

 Agiiricua crinitiis, obscnations on, 424. 

 Alder, J., on Euplocanuis, Triopa and 



Idalia, 262. 

 .\lg!e Ilibcrnicaj, noticed, 189. 

 Altensteinia, new species of, 385. 

 Ampludesnia, new species of, 318, 434. 

 Auii)hitiie |)elagica, description of, 75. 

 -Vnatifa snlcata, description of, 75. 

 Ancyloceras, new species of, 31 ; distri- 



1)utii)u of the geuns, 34. 

 .\ncyra, cliaracters of the new genus, 34. 

 Andropadus, new sjjecies of, 127. 

 Animal and vegetable kingdoms, on some 



important analogies between the, 210. 

 Animals, marine, notices respecting some, 



68. 

 Animals, on the means by which various, 



walk on the vertical surfaces of liighly 



polished bodies, 115. 

 Anoplognatluis, on a new species of, 38. 

 Anoi'lotherium, in the lowest layers of 



the tertiary period of the Paris basin, 



on the occurrence of, 141. 

 Apha*na, new species of, 37. 

 Apion,on the synonymy of the genus, with 



descriptions of new species, 331, 392. 

 Ajdysia, new species of, 313. 

 Appcndicula, new species of, 386. 

 AJaneidea, on the structure, functions and 



occonomy of the, 221. 

 Area, new species of, 355. 

 Argynnis, remarks on the genus, 496. 

 Articulata, on the reproduction of lost 



parts in the, 373. 

 Asiphonia, characters of the uew genus, 



192. 

 Asterina gibbosa, notice respecting, 330. 

 Austin, P., on the Ischadites Konigii, the 



Tentaculites and the Conularia, 406. 

 Aviceniua, on the develoj)ment of the 



ovulum in, 197. 

 Babington, C. C, on the correct nomen- 

 clature of Lastnca spiuosa and L. mul- 



tillora of Newman, 322. 

 13acillai-ia?, on the vegetable nature of the, 



186. 



Bailey. Prof., on some infusorial deposits 

 in America, 214. 



Bain, A. G., on the geology of the south- 

 eastern extremity of Africa, 138. 



Balanophorea;, obscnations on the, 193. 



Balfour, i'rof., account of a botanical 

 exciu'sion to the Mull of Cantyre and 

 island of Islay, 425. 



Ball, II., notice respecting the two-toed 

 sloth, 64 ; on the Fehs melauura, 286. 



Batrachospermum vagum, notice respect- 

 ing, 244. 



Belemnites, observations on some, 277. 



Beneden, P. J. van, on the genera Eleu- 

 theria and Synhydra, 244 ; on the em- 

 biyogeuy of the Tubularifc, 34(i, 



Berkeley, Rev. M. J., on the presenation 

 of objects of natural history for the 

 microscope, 104 ; on IIa;matococcus 

 sanguineus, 372 ; on Agaricus crinitus 

 and some allied species, 424. 



Birds, new, 125, 129, 132, 142, 260, 326, 

 3G0, 430; on the habits of some British, 

 166; of Ireland, 308 ; on the classifica- 

 tion of, 422. 



Bivalves, on the stone- and wood-bur- 

 rowing, 113. 



Blackwall, J., on the means by which 

 various animals walk on the vertical 

 surfaces of highly polished bodies, 115 ; 

 ornithological notes by, 166 ; on the 

 structure, functions and ceconomy of 

 the Avaneidea, 221. 



Blood-corpuscle, on the structure and 

 development of the, 281. 



Blood-corpuscles of the two-toed sloth, 

 on the, 122. 



Blyth, E., on some new species of Mam- 

 malia, 449. 



Bopynis squillarum, description of, 75. 



Borlasia, new species of, 320. 



Botanical notices from Spain, 178, 417. 



Botanical Society of Edinburgh, proceed- 

 ings of the, 64, 350, 425. 



Botanical Society of London, proceedings 

 of the, 139. 



Botany, geographic memoirs on, 11, 89. 



Botany of the Voyage of H. M.S. Sulphur, 

 reviewed, 188. 



Bowerbank, J. S., on a new species of 

 2 M 2 



