526 



Index to Vol. IF. 



Page 

 Aspidogaster, a new genus of En- 



tozoa 258 



Astarte crassidens 365 



lactea 365 



Atherina Hepsetus 471 



Axolotl considered as the type of 

 a new order of Reptiles 132 



Baer, Dr. E. von, Analysis of his 



Essay on the lower Animals . . 257 

 Bancroft, Dr. E. N., on the Fish 

 known in Jamaica as the ^Sea- 

 Devil ". . . . 444 



Barkow, Dr. Notice of his paper 



on the Anatomy of the Sheep . 254 

 Bat, common. Abstract of the Rev. 

 L. Jenyns' Observations on the 503 



long-eared, Analysis of Mr. 

 Jenyns' description of two Bri- 

 tish species of 126,487 



Bathyergus Ludwigii 439 



Beak, Observations on the struc- 

 ture of the, and its muscles in 



the Crossbill 459 



Bees, Notice of Mr. Knight's Ob- 

 servations on 499 



Beluga 497 



Bell, Thomas, Esq., Analysis of 

 his Description of a new Spe- 

 cies of Agama 492 



of a new species of Phalan- 



gista 488, 502 



Bennett, E. T., Esq. Observa- 

 tions on the Fishes contained in 

 the Collection of the Zoological 



Society 31 



On the Mus Barbarus of 



Linnaeus 472 



Berkeley, Rev. M. G., Descrip- 

 tion of the anatomical structure 



of Cyclostoma elegans 278 



Bicheno, J. E., Esq., Letter to, by 

 Mr. W. S. MacLeay, in exa- 

 mination of his paper on Sys- 

 tems and Methods 401 



Birds, orders of, analogous to 



those of Mammalia 485 



Mr. Vigors on some new 

 species of, from the North-west 



coast of America 352 



new species of. Analysis of 

 Mr. Leadbeater's descriptions of 491 



Bison 254 



Bittern, Night, from the Straights 

 of Magellan 92 



Page 

 Blackwall, J. Esq. Facts relat- 

 ing to the Natural History of 



the Cuckoo 294 



Blatta Maderae, antennae of its 



larva re-produced 294 



Blennius marmoratus 35 



sordidus 34 



Bojanus, M. Analysis of his Com- 

 mentary on the Urus 254 



Bombycidae, stirpes of, and typi- 

 cal forms of their larvae 120 



Bonaparte, C. L., Prince of Mu- 

 signano, Notice of a migration 

 of Birds, including Warblers. . 127 

 Brachypus, a new genus of Heli- 



cidas 167 



Brachypus costatus 167 



British Fauna, Mr. Yarrell's No- 

 tices of three species of Fishes, 



new to the ... 465 



Broderip, W. J. Esq., Observa- 

 tions on the Animals hitherto 

 found in the shells of the genus 



Argonauta 57 



Description of a new 



species of Cypraea.. 163 

 On the habits and 

 structure of Paguri 

 and other Crustacea 200 

 Description of a new 

 Land-shell from S. 

 America, together 

 with an additional 

 Note on Argonauta 222 

 and Mr. G. B. Sow- 

 ERBY. Observations 

 on new or interest- 

 ing MoUusca, con- 

 tained, for the most 

 part, in the Museum 

 of the Zoological So- 

 ciety 359 



Brookes, Mr., Analysis of his Pa- 

 per on a new genus of Roden- 



tia 489, 501 



Bucephalus, a new genus of Ento- 



zoa 258 



Bucephalus, a new genus of Ser- 

 pents 441 



Bucephalus Bellii , 442 



gutturalis 442 



Jardinii 442 



typus 441 



Buccinum horeale 375 



Bucco marginatus 392 



