LIST 
OF 
CONTRIBUTORS, 
Adams, Arthur, Esq., R.N., F.L.S. &c. page 
Monograph of the Species of Myochama , including the 
descriptions of two New Species from the Collection of H. 
Cuming, Esq.22 
Description of New Species of the Genus Cumingia , with 
some additional generic characters.24 
An Arrangement of Stomatellidce , including the characters 
of a New Genus and of several New Species.29 
Monograph of the Genus Anatinella .40 
Monographs of Cyclostrema , Marryat, and Separatista , 
Gray, two genera of Gasteropodous Mollusks.41 
On the Animal of Liotia , with descriptions of New Species 
of Delphinula and Liotia , from the Cumingian Collection . 50 
Monograph of Sphcenia , a genus of Lamellibranchiate 
Mollusca.86 
Monograph of Scarabus , a genus of air-breathing Gaste¬ 
ropodous Mollusca, from specimens in the Cumingian Col¬ 
lection .147 
Monograph of Phos, a genus of Gasteropodous Mollusca 152 
Monograph of Macrochisma, a genus of Gasteropodous 
Mollusca, belonging to the Family Fissurellidae .... 202 
Monograph of Modulus , a genus of Gasteropodous Mol¬ 
lusca, of the Family Littorinidae.203 
Monograph of Cyllene , a genus of Gasteropodous Mol¬ 
lusca . . . 204 
