444 



INDEX to VOL. XX. 



ACANTHION, new species of, 352. 



Acrias, new species of, 29. 



Actinogonium, diagnosis of the new genus, 

 127. 



Adams, A., on a new species of Fulgora, 

 204 ; on the hahits of certain exotic 

 spiders, 289. 



Agalmopsis, characters of the new genus, 

 347. 



Agassiz, L., on the moose and carabou, 

 and on the American raven, 142. 



Allman, Prof. G. J., on a new genus and 

 species of Entomostraca, 1 ; on a new 

 genus and species of tracheary spiders, 

 47. 



Anser, new species of, 214. 



Antelope, new species of, 286. 



Anthenea, new species of, 198. 



Apteryx, new species of, 282. 



Arachnactis, characters of the new genus, 

 347. 



Arachnidans, tracheary, on a new genus 

 and species of, 47. 



Arctibius, new species of, 434. 



Argalia, new species of, 212. 



Asteriadae, on some new genera and spe- 

 cies of, 193. 



Asterodiscus, new species of, 196. 



Astrogonium, new species of, 199. 



Aterica, new species of, 64. 



Atrypa, new species of, 231. 



Attus, new species of, 294. 



Australia, on the fossil botany and zoology 

 of the rocks associated with the coal 

 of, 145, 226, 298. 



Babington's, C. C, list of plants gathered 

 during a short visit to Iceland in 1846, 

 30 ; Manual of British Botany, notice 

 of, 52. 



Badham's, Dr. C. D., Treatise on the Escu- 

 lent Funguses of England, notice of, 

 128. 



Barneoud, M., on the organogeny of the 

 irregular corollas, 440. 



Bat, on a new species of, 434. 



Beaver, on the range of the, 357. 



Bellerophon, new species of, 308. 



Birds of New Zealand and Australia, 

 notes on rare, 55 ; of Chile, descriptions 

 pf the eggs of some, 56 ; notices re- 



specting some Irish, 169 ; observations 

 on some Indian, 313; of Tobago, 328, 

 370; of Calcutta, remarks on the, 382 ; 

 new, 143, 211, 214, 356, 441. 



Blanchard, E., on the circulation in in- 

 sects, 112. 



Blyth, E., on Mr. J. E. Gray's published 

 catalogue of the specimens of mamma- 

 lia and birds presented by B. H. Hodg- 

 son, Esq., to the British Museum, 313; 

 on C. J. Sundevall's paper on the birds 

 of Calcutta, 382. 



Bonaparte, Prince Ch. Lucien, on a new 

 species of bat, 434. 



Books, new: — Babington's Manual of 

 British Botany, 52 ; Lindley's Elements 

 of Structural and Physiological Botany, 

 53 ; Hussey's Illustrations of British 

 Mycology, 54 ; Badham's Esculent Fun- 

 guses of England, 128 ; Pfeiffer's Mo- 

 nographia Heliceorum, 345 ; Sars' Fauna 

 littoralis Norvegise, 346 ; the Journal 

 of the Indian Archipelago, 411. 



Boselaphus, new species of, 286. 



Botany, Structural and Physiological, 

 Elements of, reviewed, 53. 



Bouchard, M., on a new species of Lep- 

 taena, 250. 



Bouve, M., on a new Echinus from the 

 millstone grit of Georgia, 142. 



Brachiopoda, descriptions of some species 

 of, 250. 



Brachymetopus, description of the new 

 genus, 229. 



Buckley, S. B., on the range of the beaver 

 in the United States, 357. 



Butterflies, descriptions of new species of, 

 257. 



Cabot, Dr., on Pyranga roseogularis, 143. 



Calliderma, description of the genus, 197. 



Carabus, new species of, 14. 



Cardinia, new species of, 302, 



Cassin, J., on a new species of Cymindis, 

 356. 



Cell-sap, on the power of the living plant 

 to restrain the evaporation of the, 35. 



Ceratocarcinus, description of the genus, 

 61. 



Cervus, on some American species of, 

 142. 



