proceedings: December 14, 1904, 159 



By Mr. Thos. Edwards : Bi-operculate Bticcinum tindafutn, and some remark- 

 able carinate examples, with a well-defined slit in the carina, giving the shells a 

 pleurotomoid appearance, from the Isle of Thanet, Kent ; also a magnificent speci- 

 men of Cardinni pseiidoliina Lam., dredged in deep water off Zanzibar — this is a 

 very striking shell, the specimen shown weighing two pounds, and measuring six- 

 teen inches in circumference. 



By Mr. J. W. Baldwin : Liinuiza stagnalis, a fine labiate form, from Pit Lane, 

 near Radcliffe. 



By Mr. L. St. G. Byne : Cypraa physis in fine condition, dredged alive by 

 fishermen, near Oran, Algeria. 



By Mr. C. Oldham : On behalf of Mr. P. H. Grierson, Helix itala var. leucozona, 

 Carrickmacross, Co. Monaghan, and var. lentiginosa, from Trim, Co. Meath ; 

 H. rotimdata var. alba from Lagon Bridge, and Vallonia excentrica Sterki. 



By Mr. R. Standen : Phasianella aiistralis. a large series of the principal colour 

 varieties of this beautiful species ; a fine series of Ruiiiina decollata was shewn from 

 many European localities, also from the United States (introduced), and the influ- 

 ence of habitat upon size, and coloration of a species, was strikingly demonstrated 

 by the exhibit. 



It was decided to hold the following 



Special Exhibits at Future Meetings : 

 January, 1905 - Varieties of Helix aspersa. 



February, 1905 - Varieties of Helix aemoralis. 



March, 1905 - Varieties of Helix hortensis. 



The above with special reference to the list recently issued by the Society. 



Scalariform Natica catena, — The accompanying photograph of a curious 

 scalariform monstrosity of Natica catena may be of interest to members. I found 

 the shell on the Laugharne (Caermarthenshire) beach, and have seen nothing like it 

 in any collection. — -Bartlet Span {Read before the Society, June 8th, 1904). 



