INDEX TO VOL. 1. 



The new species described in this Volume, together with the specie* 

 newly characterized, are distinguished by the Italic cliaracter. 



Page 

 Acanthosoma heemorrhoidalis .... 570 

 Accentor Alpinus, shot at Cam- 

 bridge 134 



Achlysia Dytisci 122 



Mannerheimi 577 



iEtherisE : — Abstract of a Notice 

 of those found in the Nile by 

 M. Cailiaud; by M. De Fe- 

 russac; with a description of 

 a new species {jE. tubifera) ; 



by G. B. Sowerby 518, 134 



Alecto 589 



Alpheus polaris 119 



Amphitoite of Desmarest, shewn 



to be of vegetable origin 284 



Analeatesa, a genus ofCebrionidae 34 



bicolor 35 



testacea 36 



Anatomy of the Thorax, in In- 

 sects, &c. — general observa- 

 tions on — by E. T. Bennett. . . 391 

 Anopheles, a genus ofTipulidae. . 456 



bi/urcalus id. 



maculipennvs 457 



Anthut Kichardi, taken near Lon- 

 don 280 



described 411 



n S "j Aranea domestics, anecdote of. . .383 / 



Area glacialis 1 <iO 



Asilus of the Romatif, and Oistros 

 of the Greeks, Mr. W. S. Mac 



I^-ay on, 277, 566 



A»nua, a grtius of Kquida; 244 



hurc/idliU 247 



Jlemiunus 244 



ifuagga 246 



vulgarin 244 



Xtbra 248 



Attcrian polarit 119 



Aty a scabra 565 



Auxtralasia, its peculiar Zoo- 



lo.'y 463-4 



AucliLiiia 242 



.Auricula caprella 565 



Page 



Balanus glacialis 12U 



Balea, i. E. Gray, Esq. on 61 



fragilis 61 



tristensis 61 



ventricosa 62 



Bat, new American, {Nyctinomus 



Braziliensis) 233 



new English {Fespertdio 



Pygmceus 559 



Bell, Thomas, Esq. Abstract of 

 Dr. Gaspard's Memoir on the 

 physiology of Helix I'omatia, 



with notes 93, 174 



on Emarginula rosea 52 



on Sponges 202 



on the supposed identity 

 of the genus Isodon of 

 Say with Capromys . . . 230 

 on Aranea domestica .... 283 

 Description of Uromasti/x 



Acanthinurus 457 



Bellerophon, M. Defrance's cor- 

 rection of its characters of 223, 572 

 Bennett, E. T. on the Anatomy 

 of the Thorax in Insects, and 

 on its functions during flight. . 301 

 Description of an hi.- 

 therto unpublished 

 species of HuccMiiuui, 

 (Humphreysianum) . . 398 

 Birds found in the vicinity of 

 Geneva, a catalogue of, by 



Prof. Necker 89 



Birds, migration of. Dr. Jenner 



on 125, 351 



Birds, rare or foreign, taken in 

 the Briti-h Isles. .. . 131, l.'J4, 276, 

 278, .58.5, 586, 589 



Birds, Suniatran ,54.3 



litrnnius polaris 118 



lioiiilins arclicus 1 18 



Uuiiibyx Sahini 1 18 



B('iiHpnrlc,Mr. Con new speries 

 of rroccllariu; 425 



