254 JOURNAL OF CONCHOLOGY, VOL. I3, NO. 8, OCTOBER, I9II. 



A List of the Land and Freshwater Mollusks of Ireland ( Proc Royal Irisli 

 Academy, vol. xxix., section B, no. 3, with plate), hy A. W. Stelfox. 

 Tiiis excellent and thoughtful work is undoubtedly the most interesting con- 

 tribution that has been made for some time to our knowledge of the terrestrial 

 mollusks of tlie United Kingdom. The last Irish list was published by Dr. Scharff 

 in 1892, since when an immense amount of field work has been done, and Mr. 

 Stelfox tells us that there are now few, if any, districts which have not been 

 roughly surveyed. We would call special attention to the remarks under Lininiva 

 praleniih Bowell, with reference to the description of new species, and the lack 

 of attention paid to possible effects of environment on the radula and genitalia of 

 a moUuslc. Mr. Stelfox has taken up a reasonable and quite intelligible stand- 

 point with regard both to new species and to forms whose specific rank still hangs 

 in the balance, and has given us a list which ought to prove an ideal basis — as well 

 as an incentive — for future investigation. We are inclined to join issue with liim 

 over one point, and over one point only, viz., the inclusion of Otiiia otis Turton, 

 which has such a purely marine habitat, whatever its affinities. Mr. Welch's 

 photographic plate, illustrating morphological variation in various species of Litii- 

 ncta, etc., is excellent. 



The list is accompanied by a very complete bibliography, and by annotated 

 lists of doulilful and introduced species. For the purpose of records, the system 

 followed is that of Puuger in his Irish Topographical Botany. The country is 

 split into forty divisions, and the symbols representing them are printed in an 

 order corresponding to their relative geographical position. We are quite of 

 opinion that Hygroniia revelata may yet turn up on the east coast of Ireland. 



Paludestrina jenkinsi (Smith) in Hampstead Bathing Pond. — Palitiiestrina 

 jevkinsi (Smith) is now abundant at the upper (enclosed) end of tlie Hampstead 

 Bathing Pond, where sea-gulls congregate in winter. May not the somewhat 

 unexpected appeal ance of this brackish-water species in similar localities be as- 

 cribed to its distribution by these birds ?—GRiKFri'H HuMrHREYS {Read before 

 ihe Society, June 14th, 191 1). 



