Vol. X. Part I. 



MARCH, 1912. 



Price 7s. 6d. net. 



PROCEEDINGS 



lALACOLOGICAL SOCIETY 



OF LONDON. 



EDITED BY 



E. A. SMITH, I.S.O., F.Z.S. 



Under the direction of the Publication Committee. 



AUTHORS ALONE ARE RESPONSIBLE FOR THE STATEIVIENTS IN THEIR RESPECTIVE 



PAPERS. 



O O InT T E 3^ '!• S . 



Proceedings : — page 



Ordinary Meetings : 



November lOth, 1911 1 



December 8th 1 



January 12th, 1912 2 



Notes : — 



Note on the occurrence of 

 Pisidium Lilljeborgii in the 

 Isle of Arran. By StaiJ- 

 Surgeon K. H. Jones, K.N. 4 



Note on a large specimen of 

 Anodonta ci/gnea. By E. A. 

 SraTH, I.S^O 4 



Note on Aplwnitoma Locardi, 

 Bavay, and Mitra hiconica, 

 Sykes. By E.R. Syices,B.A. 4 



Fragments of Limestone eroded 

 by Helicella ccqjerata. By 

 B. B. Woodward, F.L.S.... 4 

 Papers : — 



On the Anatomy of Species of 

 Cultellus and Asor. By 

 H. H. Bloomer, F.L.S. 

 (Plate I.) 5 



Descriptions of new Terrestrial 

 Mollusca from North-West 

 China. By H. B. PRESTON, 

 F.Z.S. (Figs.) 11 



Descriptions of new Helieoid 

 Shells from Cape Colony. By 

 H. B. Preston, F.Z.S. 

 (Figs.) 16 



Note on Viquesnelia of Deshayes 

 from the Miocene (Sarmatian) 

 of Turkey. By G. K. Gude, 

 F.Z.S 19 



Characters of two undescribed 

 Land Shells from the Eepublic 

 of Colombia and a new genus 

 of Helicoids. By G. K. Gude, 

 F.Z.S. (Figs.) 21 



LONDON : 

 DULAU & CO., Ltd., 

 37 SoHO Square, W. 



Papers continued : — P 

 Explanation of the Figures 

 occurring in Westerlund's 

 " Sibiriens Land- och Sot- 

 vatten-MoUusker", 1877. By 

 G. K. Gude, F.Z.S 



On two Preoccupied Specific 

 Names in Gastropoda. By 

 G. K. Gude, F.Z.S 



Note on the genus Aricia of 

 Gray. By H. 0. N. Shaw, 

 F.Z.S 



24 



25 



26 



Description of Sistrnvi Oparense, 

 n.sp., from the South Pacific. 

 By J. C. Melvill, M.A., 

 D.Sc. (Fig.) 27 



Notes on the Shells of Tridacna, 

 and description of a new 

 species. By G. B. SoWERBY, 

 F.L.S. (Fig.) 29 



On a case of presumed Viviparity 

 in Limicolaria. By G. C. 

 EOBSON, B.A 32 



Note on the genus Panope, 

 Menard. By Dr. W. H. Dall 34 



The Nomenclature of the 

 Veneridfe : a reply to Dr. 

 W.H.Dall. ByA.J.-JUKES- 

 Browne, F.R.S., F.G.S. ... 36 



The occurrence of Helicella 

 Heripensis (Mabille) in Great 

 Britain. By A. W. Stelfox. 

 (Plate II.) 39 



Notes on some British Non- 

 marine Mollusca. By A. W. 

 Stelfox. (Plate II.) 42 



On the occurrence of Pupisoma 

 in South Africa. By H. C. 

 BuBNUP 45 



JiERLiN: 



R. FKIEDLANDEE & SOHN, 



11 Karlstrasse, N.W. 



