CONTENTS. Vll 



Papers {contimied) — page 



Descriptions of twenty-three species of Gastropoda from the 

 Persian Gulf, Gulf of Oman, and Arabian Sea, dredged by 

 Mr. F. W. Townsend, of the Indo-European Telegraph Service, 

 in 1903. By J. C. Melvill, M.A., F.L.S. (Plate V.) . . . . 51 



On Bertha'is, a proposed new genus of Marine Gastropoda fi'om 



the Gulf of Oman. By J. C. Melvill, M.A., F.L.S. (Figs.) 61 



Note upon Oliva gibbosa, Born, and its limits of variation. By 



J. C. Melvill, M.A., F.L.S. (Fig.) 64 



On the specific identity of Vivipara diluviana, Kunth, and 

 Vioipara Clactonensis, S. V. Wood. By A. S. Kennard & 

 B. B. Woodward, F.L.S QQ 



Descriptions of new species of Ena, Pseudoglessula, and Subulma, 

 from British and German East Africa. Bv E. A. Smith, 

 LS.O. (Figs.) ' 68 



Some remarks on the Mollusca of Lake Tanganyika. By E. A. 



Smith, LS.O. (Figs.) 77 



Description of a new species of Opisthostoma from Borneo. By 



E. A. Smith, LS.O. (Fig.) 105 



New Mollusca from New Zealand. By Rev. W. H. Webster. 



(Figs.) 106 



Descriptions of new species of non-marine shells from Java, and 

 a new species of Corbioula from New South Wales. By the 

 Rev. R. A. BuLLEN, F.L.S., F.G.S. (Plate VL) 109 



The Hawaiian species of Opeas. By E. R. Sykes, B.A., F.L.S. 



(Figs.) 112 



Report on a small collection of Helicoids from British New Guinea. 



By G. K. GuDE, F.Z.S. (Figs.) 114 



On some non-marine Hawaiian Mollusca. By C. F. Ancey. 



(Plate VIL) 117 



On a new form of Carboniferous Nautiloid {Amphoreopsis pauci- 

 camerata) from the Isle of Man. By G. C. Crick, F.G.S. 

 (Plate VIIL) 134 



List of Mollusca collected during the Commission of H.M.S. 

 " Waterwitch " in the China Seas, 1900-3, with descriptions 

 of new species. By Surgeon K. H. Jones, M.B., R.N., & 

 II. B. Preston, F.Z.S. (Figs.) 138 



Notes on the genus Anoma^ Albers. By E. R. Sykes, B.A. 



(Plate IX.) 152 



New Land-Shells from New Zealand. By H. Suter. (Figs.) . . 155 



Descriptions of twenty-eight species of Gastropoda from the 

 Persian Gulf, Gulf of Oman, and Arabian Sea, dredged by 

 Mr. F. W. Townsend, of the Indo - European Telegraph 

 Service, 1900-4. By J. C. Melvill, M.A., F.L.S. (Plate X.) 158 



Conus Coromandelicus, Smith, its probable affinities, and systematic 

 position in the family Conidce. By J. C. Melvill, M.A., 

 F.L.S. (Figs.) 170 



