PROCEEDINGS OF THE CONCHOLOGICAL SOCIETY. 263 



It was resolved to enter into an Exchange of Proceedings 

 with the Royal Society of Queensland from this date. 



PAPERS READ. 



1. " A List of the MoUusca of Northamptonshire, 

 authenticated by the Society's Referees." 



2. "Variation in Limax maximus, L.," by Wm. Denison 

 Roebuck, F.L.S. 



SPECIMENS EXHIBITED. 



Mr. W. Jeffery sent for exhibition specimens of Liinnxa 

 stagnalis var. labiata and L.peregra var. acuminata from Ratham. 



In an accompanying note on the L. stagnalis, Mr. Jeffery 

 observes : — " This variety appears to be generally the last stage 

 of growth in these ponds. After the season of reproduction 

 appeared to be over, all, or nearly all, the full grown specimens 

 commenced cleaning the confervoid growth from the edge of the 

 shell. I have seen them contorting their bodies to perform this 

 for themselves, and also doing it for each other, preparatory to 

 the new formation." 



Mr. Baker Hudson sent several specimens of Vertigo 

 pygmcea var. quadridentata for exhibition. 



Examples of Limncea petegra from Values, Vitrina pellu- 

 cida, Helix arbustorum and vax.fnsca from Seydisfyorde, Iceland, 

 recently collected by Mr. W. E. Clarke, F.L.S., were also shown. 



The chairman exhibited a series of shells collected by Mr. 

 W. Whitwell, at Oxford, which included Planorbis albtis var. 

 Draparnaldi, P. carinatus var. disciformis, Limncea stagnalis 

 var. fragilis, Physa fontinalis, and Bythinia Leachii. 



Meeting 



HELD NOVEMBER 6tH, 1 884. 



Mr. W. D. Roebuck, F.L.S., presided. The following 



DONATIONS 



were announced : — 



" Proceedings of the Linnean Society, New South Wales," 

 vol. ix. part 2 ; " Monograph of the Land Shells of Tasmania," 

 Mr. R. D. Darbishire. 



