LAND AND FRESHWATER MOLLUSCS OF INNER HEBRIDES 23 



Before discussing the species, I must express my thanks 

 to Dr James Ritchie, who has given me working space and 

 access to literature in the Royal Scottish Museum, to my 

 assistants Messrs Noel Smith and C. M. Yonge, and 

 especially to Mr A. W, Stelfox of the National Museum, 

 Dublin, and his colleagues Messrs R. A. Phillips and C. 

 Oldham, who have named the specimens of Pisidhtni for 

 me. I have incorporated Mr Stelfox's valuable notes in my 

 report. 



List of Land and Freshwater Mollusca collected in the 

 Hebrides, August 1921. 



I. Kenneth. lona. Mull. 



Thus of the thirty species collected, all but three were 

 found on Ulva. Of the latter, two {Helix aspersa and 



