PROCEEniNCS : JANUARY II, IQII. I9I 



By Mr. Ed. Collier: Double-mouthed Claiisilia plicata Drap. , collected at 

 Innsbruck, Tyrol ; I.itniiira pahistris v. a/bida, from Southport, 1910, and the 

 original specimen of this variety collected in 1S76 at Blowick, near Southport, for 

 comparison with the later specimens which are almost smooth, whereas the 1876 

 example is curiously malleated ; Li/iimea stagnalis v. albida from Folkestone ; 

 varieties of Helix nemoralis from Birdlip and Limerick;, exhibiting curious band 

 forms. 



By Mr. J. Wilfrid Jackson : Some exceedingly fine specimens oi Margaritana 

 »iargarit?'fera from Glencar River, Co. Kerry, measuring six inches in length, also 

 an aljnormal form of this species from the river Strule, Co. Tyrone ; series of fossil 

 Pisidia from the chara and shell-marl deposit at Haweswater, Silverdale, including 

 Pisidium pusillion, P. obtusale, P. nitidmn, P. gassiesianum, and P. steenbnchi, 

 the latter being an important discovery. (These specimens have been kindly 

 authenticated by Mr. B. B. Woodward). 



398th Meeting-, held at Manchester Museum, January nth, 191 1. 



Mr. James Cosmo Melvill in the chair. 



The librarian reported that the usual periodicals had been received in exchange. 



NcAV Members Elected. 

 Keppel H. Barnard, B.A., Etwas, Farnham, .Surrey. 

 Rev. F. H. Woods, B.D., Bainton Rectory, Dritfield. 

 1). J. MacLeod, Hof Ter Meere, 13 Reigerstraat, Ghent, Belgium. 



Candidate Proposed for Membership. 



Griffith Humphreys, i, Belsize Avenue, London, N.W. 



Resignations. 

 S. Ilainsworth. John Rhodes, F.E.S. Thomas Rumney. 



Member Deceased. 

 J. A. Storey, B.A. ' ' 



Papers Read. 

 "Obituary Notice— Prof. Dr. Oscar Boettger,"byJ. R. leB. Tomlin, M. A., F.E.S. 

 "An interesting association of species in Windermere," by W. Gyngell. 

 ""Helix aspersa m. sinistrorstwi at Scarborough," by W. Gyngell. 

 " LinnuTa pereger var. lamstris Leach living without shell," by W. Gyngell. 

 " Note on Helix poniatia," by G. C. Spence. 



Exhibits. 



By Mr. J. C. Melvill : Specimens of a new Latirus of the group Peristeniia 

 from the island of Mauritius, wiiich he proposed to describe under the name 

 Jeaiiiii. 



By Mr. J. W. Baldwin : A fine series of species of Partula, shewing some 

 variety in coloration, and all in excellent condition ; also Cochlicopa Inbrica from 

 Ikomley Cross, and its variety Jiyalina from the Winnats, Derbyshire. 



By Mrs. J. Carphin : Specimens of Psendoglessula siostedti d'Ailly, from 

 Cameroons, West Africa. 



By Mr. J. Kidson Taylor : Alacaiidi-evia cyaiiiiiiii from Shetland, and a fine set 

 o{ Diploviorpha layai'di and D. delalouri {xo\w the New Hebrides. 



Special Exhibit of Porphyrobaplie -. The chief exhibit of the evening was a 

 fine collection of the Bulimoid group of mollusca now separated under the genera 



