CONTENTS. 



Papers {contimied) — page 



Explanation of the Fignres occurring in Westerlund's " Sibirien.s 

 Land- och Sotvatten-Mollusker ", 1877. By G. K. Gude, 

 F.Z.S 24 



On two Preoccupied Specific Names in Gastropoda. By G. K. 



Gude, F.Z.S 25 



Note on the genus Aricia of Gray. By H. 0. N. Shaw, F.Z.S. 26 - 



Description of Sistrum Oparense, n.sp., from the South Pacific. 



By J. C. Melvill, M.A., D.Sc. (Fig.) 27 



Notes on tlie 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. 



RoBSON, B.A. 32 



Note on the genus Panope, Menard. By Dr. W. H. Dall . 34 



The Nomenclature of the Veneridse : a reply to Dr. W. 11. Dall. 



By A. J. Jokes-Browne, F.R.S., F.G.S 36- 



The occurrence of Hellcella Heripensis (Mabille) in Great Britain. 



By A. W. Stelfox. (Plate II.) 39 



Notes on some British Non-marine MoUusca. By A. W. Stelfox. 



(Plate II.) 42 



On the occurrence of Pupisotnrt in South Africa. By H. C. Burnup. 45 



The Distribution and Habits of Alopia, a sub-gemis of Clausilia. 



By the Rev. A. H. Cooke, M.A., F.Z.S 90 



The genus Dosinia and its subdivisions. By A. J. Jukes-Browne, 



F.R.S., F.G.S 95 



On the generic name to be applied to the Venus islandicu, Linn. 



By E. A. Smith, LS.0 105 



Characters of three new species of Freshwater Shells from 



Uruguay. By H. B. Preston, F.Z.S. (Figs.) . . . 107 



Descriptions of five new species of Limicolaria from British East 



Africa. By H. B. Preston, F.Z.S. (Figs.) . . . .108 



A Synopsis of the Recent and Tertiary Land and Freshwater 

 Mollusca of the Californian Province. By H. Hannibal. 

 (Plates V-VIII.) 112 



On Dosinia lucinalis (Lamk.) and its synonyms. By A. J. 



Jukes-Browne, F.R.S., F.G.S 214 



New Generic Names and New Species of Marine Mollusca. By 



T. Iredale. (Plate IX and Fig.s.) 217- 



On a Collection of Land and Freshwater Mollusca from Java. 



By M. M. Schep.man. (Plate X.) 229 



