Adams, Arthur, F.L.S., Surgeon R,N. (continued). 

 Contributions towards a Monograph of the Tro- 

 chida, a family of Gasteropodous Mollusca 1851, 150 



A Monograph of Scutus, a genus of Gasteropodous 

 Mollusca, belonging to the Family FissurellidcB .... 1851, 221 



A Monograph of the Genus Monoptygma of Lea . . 1851, 222 



Descriptions of New Shells from the Cumingian 

 Collection .\ 1851, 224 



Note on the Genus Nematura 1851, 225 



A Monograph of the Recent Species of Rimula, a 

 genus of Mollusca, belonging to the family Fissurel- 

 lidcB 1851, 226 



A Monograph of Puncturella, a genus of Gastero- 

 podous Mollusca, belonging to the Family Fissurel- 

 lidcB 1851, 227 



Descriptions of Sixteen New Species oi Rissoina, a 

 genus of Marine Gasteropodous MoUusks, from the 

 Cumingian Collection 1851, 264 



Descriptions of several New Species of Murex, Ris- 

 soina, Planaxis, and Eulima, from the Cumingian Col- 

 lection 1851, 267 



Descriptions of New Species of L'ulitna, Triphoris, 

 &c., from the Collection of Hugh Cuming, Esq 1851, 276 



Descriptions of New Shells, from the Cumingian 

 Collection '... 1852, 90 



Descriptions of a New Genus, and of several New 

 Species, of Mollusca, from the Cumingian Collection 1852, 92 



Descriptions of New Shells, from the Collection of 

 Hugh Cuming, Esq 1853, 69 



Descriptions of New Species of Semele, Rhizochilus, 

 Plotia, and Tiara, in the Cumingian Collection .... 1853, 94 



Descriptions of New Species of the Genus Conus, 

 from the Collection of Hugh Cuming, Esq 1853, 116 



Monograph o{ Plecotrema, a New Genus of Gastero- 

 podous MoUusks, belonging to the Family Auricu- 



I* 



X 



