508 



Index to Vol, V. 



PAGE 



Nocthora trivirgata 140 



Noctilio dorsatus 468 



ruber 468 



NotoTidce, Mr. Weslwood's Ob- 

 servations upon the, with 

 characttrs of two new British 

 genera, separated therein .... 57 



Notoxus mclanocephalus 59, 60 



Novaculina Gangetica 464 



Nucu/a striata 337 



Nyctipituecus trivirgatus 468 



Ockskay, Baron Von, Notice of 

 his Paper on the Mus pratensis 474 



Octodon Cuniingii 495 



Odontis suhplicata 345 



CEstrus, Mr. MacLeay's Note on 276 

 OEstrus of Mr. Bracy Clark. Mr. 



MacLeay on the 18 



Oonops, a new genus of Spiders 404 



pulcher 404 



Operculum of Molluscous Ani- 

 mals, mode of ascertaining its 

 existence where doubtful. . 33, 34 

 Observations on its use. ... 34 

 Its value in generic charac- 

 ters 34 



Ophis dubius 486 



Opixioplatys, a new genus of 



Heteropterous Insects 447 



AuntralasiT 447 



Orang Outang, femsle, Dr, J. E. 

 Grant's I ost Mortem Exami- 

 nation of 91 



OrgansofVoice in Birds, Analysis 



of Mr Yarrell's Paper on the 258 

 Ornithorhynchus paradoxus .. 118 

 Orphnephila, a new g<;nus of Ti- 



pulidous Insects 350 



devia 350 



Orlhoceratites striolatus ...... 486 



Orthochile nigrocoerulea . . 366, 367 



Ortyx Montezumse 275 



squamatus 275 



Oryssus Sayii 440 



unicolor 440 



Otaria molossina 119 



Otto, Dr., Notice of his Descrip- 

 tion of new Crustacea, found 

 in the Mediterranean Sea .... 379 

 Ovarian sacculi. Dr. Bancroft's 



Note on a series of 83 



Ovis Aries 472 



Ozocera, a new genus of Dip- 

 terous Insects 449 



interrupta 449 



PAGE 



Palaeornis Columboides 274 



inornatus 274 



? rosaceus 274 



Pandora brevis 99 



Papilio, Notice of Mr. Milne's 

 Attempt to introduce a more 

 precise Distribution of the 



genus 268 



Papilio Cocy/a 67 



lubentina 66 



PapilionldcB, Dr, Horsfield's 



Character of 105 



Parandra, a genus of Coleop- 

 terous Insects, its liistory. . . . 231 

 Parniacella, comparison of the 

 internal structure of, with that 



of Helicolimax 309 



Partulajlarescens 342 



Passandra, a genus of Coleop- 

 terous Insects 223 



vittata 224 



Pastre, Dr., Analysis of bis 

 Memoir on the cause of Hyber- 

 nation in animals 368 



Patas a bandeau blanc 114 



Paussidse, Notice of Mr. West- 

 wood's Paper on the 266 



Paussus flavicornis 267 



Pecten Patagonicus 337 



vitreus 337 



Pedipes, Mr. Lowe on the genus 280 



Pedipes Afra 281, 297 



Pelvis, Analysis of Dr. Ritgen's 

 Memoir on the Osteology of 



the, in Fishes ". 378 



Pentaplatarthius, a new genus of 



Paussidse 266 



Paussoides 266 



Pentaloma verrucosa 445 



Pentairematites, Mr. Sowerby 



on three new species of 456 



Pentairematites acuta 456 



angulata 457 



inflata 457 



V oblonga 457 



orbicularis 456 



pentarigularis . , 457 

 Penthophera, a Frifiih genus .. 113 

 Perdix Coturnix, Dr. Heineken's 



Observations on 78 



Perithwus, a new generic sub- 

 division of Dolichopidous 



Insects 353 



Petrel, Sooty 384 



Petrophila, Notice of Mr. Lans- 

 down Guilding's Natural His. 



