GAsKOIN, J. 8., Esq. page 
On New Species of Cyprea oie Nei St ie a a 
GouLp, Joun, Esq. 
On two New Species of Birds from the collection formed 
by Sir award Belcher si fo sine} le we es 
Description of Ardea rectirostris. . . . . . .. . Q 
On the Habits of Zeipoa . . oY oS Es ae 
On a New Species of Kangaroo Baty 81 
On nine New Birds collected rade the ‘voyage of H.M. S. 
Sulphur, Meus : - 103 
On Diomedea chlororhyncha Le : 8a. 
Descriptions of four New Species of Ortye PM ate - 192 
On an extensive Series of Toucans, with characters of Se 
NeMEACRIES Tee st pire ete ae te ete elt emmnee 
Gray, J. E., Esq. 
Letter ou, on two New Species of Bats and a Porcupine 
(Hystrix subspinosus, Licht.) in the British Museum. . . 20 
Letter from, on some New Species of Bats from Jamaica . 50 
Specimens of Mammalia from Coban in Central America, 
presented ‘by ‘20.2 Wes Ne S> Sot oid atta 79 
GuLLIveER, GEorGE, Esq. 
On the Blood-Corpuscles of the Stanley Musk Deer . . 66 
Hantey, SyLvanus, Esq. 
On New Species of Donax and Mya . . ..... 5 
On New Species of Solen and Mesodesma .. . . . 101 
Harvey, J. B., Esq. 
Better front seats os) an Wes Oe) A Pea 
Hinps, Ricuarp BrinsLey, Esq. 
On New Species of Shells collected by Sir Edward Bel- 
cher, C.B. . 17 
On two New Species of Triphoris, in the collection of 
H. Cuming, Esq. . 22 
On New Species of Pleurotoma, Clavatula, and Mangia. 36 
On New Species of Cancellaria . . A . AT 
On New Species of Corbula and ‘Potamomya 5 te cosh adhe 
On New Species of Nezra. . . 75 
On New Species of Nucula, from the collections of Sir E. 
Belcher, C.B., and H. Cuming, Esq. . » - + + © - 2 9 
On New Species of Scalaria and Murer . . . « « «124 
On New Species of Terebra . . . . «+ » + + + + 149 
Synopsis of the Genus Terebra . . . . ~ + + + « 159 
Loppices, Mr. GreorGe. 
On some Species of Humming-Birds . . . . - - . 122 
Lowe, Rev. R. T., Corr. Memb. 
On the Fishes of Madeira . . . . . . . « . ~~ 81,97 
