PROCEEDINGS: MAY lO, I91I. 221 



conn/i, all from Abeiffraw, Anglesea. Also Hygiomia viifescens, type and var. 

 riibens and var. alba, Cochlicopa hthrica, fauiiuia cylitidracea, and J. timscorum 

 from Red Wharf Bay, Anglesea. 



By Mrs. Gill: A series of varieties oi Acavtis Jiievtastonnis and.-/. pJia^nix, from 

 Ceylon ; and a specimen of Hemifiisiis tuba var. crassicanda. 



In the special exhibit of the curious and interesting group of shells in the sub- 

 family Odontostominje, peculiar to South America, a large proportion of the known 

 species was exhibited from the collections of Mrs. Gill, Messrs. Ed. Collier, R. 

 Cairns, B. R. Lucas, J- R- Hardy, T. H. Piatt, R. Standen, and the Manchester 

 Museum. 



402nd Meeting;, held at Manchester Museum, May loth, 191 1. 



Mr. E. Collier in the chair. 



Additions to the Library announced and thanks voted : 



" Studies in the Morphogenesis of certain Pelecypoda : (i), A Preliminary Note 

 on Variation in Unio pictorttnt, U. ttimidiis awA Anodonta cygma,^^ by Margaret C. 

 March {from the authoress). " Outline Classification of the Animal Kingdom," 

 4th edition, by Prof. S. J. Hickson {froin the Keeper of the Alanchester Mnsewii). 

 "A List of the Land and Freshwater Molhisks of Ireland," by A. W. Stelfox. 

 "The Recent and Fossil Mollusks of the Cienus Diastoina from the West Coast of 

 America " ; " The West American Mollusks of the Genus Ettineta" both by 

 P. Bartsch. " Notes on Non-Marine Mollusca from some Irish Lakes," by A. S. 

 Kennard and B. B. Woodward. '"On the Occurrence of Pisidiiim siipinitiii in the 

 Living State in England"; "On the Occurrence in the British Isles of Living 

 Specimens of Pisidiuvi steenbuchii Morch and /'. lilljeborgii Clessin, with Notes 

 on New Records of Pisidia for the Lake District, and Fresh Localities for P. 

 SHpinuin A. Schm." ; "Note on Further British Localities for Pisidiiini steenbuchii 

 Mcirch and P. lilljeborgi Clessin — all by B. B. Woodward. "A Double-Mouthed 

 Clausilia bideutata at Vealand Conyers near Carnforth, Lanes." ; " On Unio dis- 

 tortus Bean and Alasinodon vetustus Brown from the Upper Estuarine beds of 

 Gristhorpe, Yorks." — both by J. Wilfrid Jackson. "Manual of Conchology," 

 part 82, by II. A. Pilsbry {from the respective authors). "A Catalogue* of the 

 Mollusca of Northumberland and Durham," by Joshua Alder. " Check-Lists of 

 the Shells of North America," by, Isaac Lea and others. "Catalogue of the 

 Mollusca in the Collection of the Government Central Museum, Madras," by ]. 

 Mitchell {presented by E. W. Swanton). "Anatomy of British Species oi Psani- 

 tiiobia,'' by H. H. Bloomer. " Zur Gattung Fasciolaria Lam.," by Hermann 

 Strebel. "Studies in the Morphogenesis of certain Pelecypoda : (2), The Ancestry 

 of Trigonia gibbosa^'' by Margaret C. March {fvin the respective autJiors^. 

 "Revision des Mollusques Marins des Acores," by P. Dautzenberg. "Fauna, 

 Flora, and Geology of the Clyde Area," by various authors. "Traite de Zoologie" 

 (2 vols., 18S4), by C. Claus. " Proceedings of the Malacological Society of 

 London" (vols, i.-iii., 1893-1899). "The 'Valorous' Expedition (Molluscan 

 Report)," by J. Gwyn Jeffreys. " A Report upon the Mollusca . . . Royal Irish 

 Academy Cruises of 1885, 1886, and 1888," by G. W. Chaster. "On the Marine 

 Teslacea of the Piedmontese Coast," by J. G. Jeffreys {presented by Miss Chaster, 

 from the Library of the late Di . G. W. Chaster) ; and the usual periodicals received 

 in exchange. 



New Member Elected. 



Harry Allan, jun., Silverstone, Cheadle Heath, Stockport. 

 Candidate Proposed for Membership. 



George Curtis Leman, 44, Bloomsbury Square, London, W.C. 



