330 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



N T E S 



Ox THE OCCCRKENCE OF PiSIDIUM SUPIXUM IN THE LiVING StATE 



IN England. {Read 14</i Alay, 1909.) — In their paper read before this 

 Society in December last Mr. J. E. Cooper and Mr. A. Loydell announced 

 the re-discovery of Pisidmm supinum living in the Thames at Hampton 

 Wick and Twickenham, and in a tributary stream at Bedfont. Last 

 meeting specimens collected in the Thames at Richmond by Mr. H. Overton 

 were exhibited by me, and now I am able to show specimens from the 

 collection of Mr. Charles Oldham from widely diflPerent localities, viz., 

 Aylestone, near Leicester, where they were found in the canal close to the 

 River Soar, and Kelsall, Cheshire, where they occurred in a pond. 

 Mr. J. E. Cooper informs me that the species has also been identified 

 by Mr. J. W. Taylor from a place near Lincoln. Mr. Oldham's specimens 

 show slight variations in the hinge as compared with the Thames 

 specimens, as might be expected from their quieter habitats. The 

 Kelsall examples have a less massive hinge, while in those from Aylestone, 

 although the hinge-plate is wider at the umbo than in the Thames forms, 

 it is yet not quite so stout. 



B. B. AVOODWARD. 



