272 PROCEEDINGS OF THE CONCHOLOGICAL SOCIETY. 



of New South Wales .; Feuille des Jeunes Naluralistes ; Transactions of 

 Yorkshire Naturalists' Union ; W. H. Dall on the Dynamic Theory of 

 Evolution ; and J. W. Williams on a Tumour in the Freshwater Mussel. 



Donations to Collection announced and thanks voted : Testacella 

 haliotidea from Kirkcudbrightshire (Mr. W. Evans, F. R.S.E. ) ; various 

 Yorkshire shells (Mr. W. Denison Roebuck, F. L.S.). 



Exhibits. 



Mr. W. H. Heathcote sent for exhibition several examples of Acine 

 lincata from Luccombe Chine, Isle of Wight, making a fresh county record. 



Mr. W. E. Collinge showed Cyclostoiiia elcgans from Thorparch. 

 Yorkshire, where it occurs in very large numbers at nearly the northern 

 limit of its range in Britain. 



The Secretary showed Zonites fulviis and other shells from Alford,. 

 North Lincolnshire, sent by Mr. J. Eardley Mason. 



Mr. W. Denison Roebuck, F.L.S., showed Bidinius obsriints from 

 Ruston Parva (York S.E.) and other Yorkshire captures. 



On behalf of Mr. Robert Standen were exhibited Pisiditim fontinale 

 from Birkenhead, var. cinerea from Liverpool, v&x . pulchella from Cheadle, 

 P. 7-oseiini from Birkenhead, Sph(Eriuni coi-7ieuiii var. coniplanata from Gass 

 Canal, Hollinwood, and var. nucleus of large size from Askham Bog, very 

 oblong and flattish specimens of S. ovale from canal at Hollinwood, and 

 several varieties of Helix arbiistoruvi from Pocklington. 



On behalf of Mr. H. E. Craven were shown Planorbis nitiJus, Pisidium. 

 henslozvianuiii, and Spkav-ium cornetim var. flavescens from Sutton Cold- 

 field, Neritma Jiitviatilis with vars. cerina and trifasciata from the River 

 Blythe near Whitacre, Ancyliis Jluziiatilis var. alba from Gateshead, etc. 



On behalf of the Rev. S. Spencer Pearce, M.A. , was shown Testacella 

 haliotidea from Hitchin, Herts., where it was found by Mr. Phillips. 



An interesting collection of shells collected in Sutherlandshire, by Mr. 

 W. Baillie, of Brora, including Helix laiiiellata, Bulimus acutus, Vertigo 

 substriata, Planorbis albits, and others, and presented by him to the Society's 

 collection, was on exhibition. 



The Chairman exhibited and explained a manuscript index to the 

 synonyms of British Land and Freshwater Mollusca, which he had prepared 

 for his own use and found of considerable value and utility. 



180th Meeting, July 2nd, 1890. 



At the Philosophical Hall, Leeds. 



Mr. John W. Taylor, F.L.S., Vice-President, in the chair. 



New Members Elected: Mr. Frank Turton, Penistone ; and Mr. 

 Albert Wood, Sutton Coldfield. 



Donations to Library announced and thanks voted : — Records of 

 the Australian Museum, vol. i., no. 2 ; Mr. PL K. Jordan on the Species 

 and Varieties of the Genus Fusus which inhabit the British Seas. ■ - 



J.C., vi., Oct., 1890. 



