364 



PROCEEDINGS OF THE 

 CONCHOLOGICAL SOCIETY OF GREAT BRITAIN & IRELAND. 



441st Meeting, held at the Museum, Manchester, April 14, 1915. 



Mr. E. Collier in the chair. 



Donations to the Cabinet announced and thanks voted : — 



By Dr. A. E. Boycott : — The collection oi Clausilia bidentala from one square 



yard of wall at Portmadoc, showing range of variation and frequencj'' of the 



different sizes. 



Donations to the Library announced and thanks voted : — 



" The Marine Molhisca of Sao Thome, I.,'" by J- 1^- le B. Tomlin and I^. J. 

 Shackleford. 



" Two New Species o{ JMarginella from South Africa," by L. J. Shackleford. 



" Land and Freshwater Mollusca of India, part xii. (text and plates)," by 

 Lieut. -Col. H. II. Godwin- Austen — (ff-om the respective authors). 



" Etude sur le Genre ' Poiualias^ Studer," by M. Caziot. 



" Faune du Tumulus de St. Christophe," by M. Caziot. 



*' Zur Naturgeschichte der Campylaa phalerata T.^." by P, Ehrmann: — 

 (presented by Mr. J. IV. Taylor). 



" Histoire Naturelle des Mollusques Terrestres et Fluvialiles de la France," 

 by J. P. R. Drapainaud. 



" Complement de I'Histoire Naturelle des Mollusques Terrestres et Fluvialiles 

 de la France, de J. P. R. Draparnaud," by A. \j. G. Michaud. 



" Report of the Museum Committee [iNIanchester Museum] for the Year 1913- 

 14,'' — ( presented by the /Manchester Museum); and the usual periodicals received 

 in exchange. 



Donations to the Autograph Collection. 



Autograph Letters of Dr. R. Bergh (presented by J. R. le B. Tomlin) ; J. Pon- 

 sonby (by E. Collier) ; and Prof A. E. Boycott (by the Hon. Secretary). 



Resignation. 



Mrs. A. Fordred. 



Papers Read. 



"Obituary Notice: William Cash," by W. Denison Roebuck, F.L.S. 

 "Description of a New Variety of CyprcEa variolaria Lamk. ," by J. Cosmo 

 Melvill, D.Sc, and R. Standen. 



Exhibits. 



By Mr. ]. Wilfrid Jackson : Sphariuui palliduin and Physa heterostropha ixo\\\ 

 the Bolton Canal at Pendleton ; Physa heterostropha from the Stockport Canal at 

 Reddish; Paliidestiina jenkinsi (a non-carinate form) and /". i^aj'/;?;/ from the 

 Ashton Canal at Fairfield Locks near Droylsden ; Paliidestrina Jenkinsi (carinate, 

 noncarinate, and semi-carinate forms; also fry) from the Peak Forest Canalat 

 Marple ; Pisidium supintiin and P. henstoivanitiii from a pond at Birch, Man- 

 chester (coll. R. Standen, 1887). 



By Mr. G. C. .Spence ; Coelocentrnni gigas Pfr. , with eggs and embryonic shell, 

 and a number of s]iec\Q% oi Megaloinastorna, Catauli/s, etc. 



By Mr. R. Standen: Typical forms of Cyprcea variolaria Lam., C. erosah., 

 and C. helvola L., with pellucid varieties of the same, to illustrate his and Mr. 

 J. C. Melvill's paper. 



