Index to VoL 11. 



581 



Page 

 SwAiNsoN, William Esq., On 

 several Birds belonging to the 



genus Thamnophilus 84 



On two new 

 genera of Birds, Formicivora 



and Drymophila 145 



On Phyllos- 



toma? 283 



On the genus 

 Psaris of M. Cuvier, with an 

 account of two new species, 



{cristatus and niger) 354 



Synonymes, 



of Boltenia, a genus of 



Tunicata 269 



of Bulimus hasmastomus 441 



of Chi tones 98 et seq 



of Icterina, a subfamily 



of Birds 186 



of PsittacidfiB 49 



of the Ramphastidae . . . 467 

 of some species of Tor- 

 toises 310 



Testudo a genus of tortoises .... 343 



Cagado 344 



carbonaria 343 



Hercules ib. 



sculpta ib. 



Sj/zygonia, a new genus of Hyme- 



noptera 540 



Tanysiptera, a genus of Halcyo- 



nidai 266 



Taphosous longimanus, described 



by Gen. Hardwicke 268 



Taylor, R., Esq. notice of his 



paper on fossil timber 555 



Tellina cornea 276 



Teratichthys,a.genus of fossilfishes 252 



Terebratula ib. 



costata 105, 567 



Terrapene, a genus of Tortoises . . 308 

 Mr. Bell's description 

 of a new species of, (bicolor) . . . 484 



Carolina 309 



Europeea 308 



maculata 309 



nebulosa 310 



Tetracerus, a genus of Antelopes. . 268 

 Thalassidroma, a new genus of 



Birds 405 



Thamnophilus, a genus of Lani- 



adae 279 



Mr. SwAiNsoN on 

 several birds belonging to that 



genus 84 



ambiguus? 91 



hicolor : 86 



Page 



cinnamomeus * 87 



fasciatiis 88 



ferrugineus 92 



TiiBvius 90 



pileatus 91 



torquatus 89 



Thyroptera 243 



Toad, the common, notice of Dr. 



Davy's paper on its poison . . 545 

 Tortoises having a moveable ster- 

 num, Mr. Bell's Monograph of 



them 299 



Trichiuri, a family of Monkeys. . 123 



Tringa maritima 456 



Trigonosemus, a genus of fossil 



shells 252 



Trigonotreta, a genus of fossil 



shells ib. 



Trilobites ib. 



Triton, a genus of shells 202 



Tritonia varicosa 365 



Tunicata, analysis of Mr. W. S. 

 Macleay's observations on ... . 268 



Turbo carneus 107, 567 



fabalis 366 



fontinalis 276 



margaritus 107 



TcRTON, Dr., on some newBritish 



Sliells 361 



his Conchological 



notices 564 



Tychus, a genus of Pselaphidae . . 449 

 niger 450 



Uria Troile 459 



Ursus, list of the species in this 



genus 229 



labiatus 230 



malayanus... .221, et seq. 234 



maritimus 230 



ornatus 421 



Vespertilio Hilarii 253 



levis 253 



Polythrix ib, 



Vespertiliones of Brazil ib. 



Vespertilionidae,Mr. Gray on the 



British species of 108 



Mr. Gray on their 



division into groups 242 



Vespertilionina, a subfamily of Bats 243 

 Vigors, N. A. Esq. his Sketches 

 in Ornithology : — 



on a group of Psit- 

 iacidsR, ( PalcBornis) known 



to the ancients 37 



on a new genus 

 (Gampsonyx) of Falconidae 65 



