LIST 
CONTRIBUTORS, 
With References to the several Articles contributed by each. 
Apams, Artuur, Esq., F.L.S. 
at of New Shells, from the Collection of ra 
Cuming, Esq. . Seis crores hn nia: «ee Eee 
TRE of New Lae of Semele, Rhizochilus, Plotia, 
and Tiara, in the Cumingian Collection ................ 
Descriptions of New Species of the Genus Conus, from the 
CollecGon’of Hugh Cuming, Esqes 22.6. fcc) sss 
Monograph of Plecotrema, a New Genus of Gasteropodous 
Mollusks, belonging to the Family Auriculide, from speci- 
mens in the Collection of Hugh Cuming, Esq............. 
Descriptions of New Species of Shells, in the Collection of 
Hugh Cuming, Esq. 
A Monograph of Pyramidella, a Genus of a Am 
Mollusca, belonging to the Family Pyramidellidee 
Contributions towards a Monograph of the Genus Chem- 
MEPIS Ata eS PU io eees, SEMEL: ohtee ts, teed 
Descriptions of New Genera and Species of Gasteropodous 
DE SIOHER eI es co widen saiiedines ne pau SOE Np! sate 
A Monograph of Fossar, a Genus of Gasteropodous 
MoMemeR to ask) paceman a). aiervineaadh)spidiediiveds sae (n 
A Monograph of Umbonium (Rotella), a Genus of Trochidee. 
A Monograph of Isanda, a New Genus of Trochide, allied 
to Umbonium .... 2. ainetaalol Hagan. pomints; 
page 
69 
94 
. 116 
120 
MS eLYB 
. 176 
178 
182 
186 
187 
. 188 
