Stelfox — List of Land and Freshwater Molhtsks of Ireland. 67 



Since the publication of his list in 1892 Dr. Schaiff's duties have most 

 unfortunately left him little spare time. He has, however, induced a 

 small liand of Irish conchologists to continue the work which he had begun, 

 and, at the present time, our knowledge of this bran;jh of our fauna compares 

 very favourably with that in most other parts of Europe. The home 

 conchologists ha\'e also received great assistance from some of their English 

 fellow-workers in exploring parts of the least frequented districts. The 

 Triennial Field Club Conferences, and above all the several Island Surveys, 

 organized by jMr. E. LI. Praeger, have each added materially to our knowledge 

 of the distribution of the A'arious species. There are few if any districts 

 which have not now been at least roughly surveyed ; but still a great deal of 

 filling-in work remains to be done, and particularly in the centre, east, and 

 west are areas which it will take some years to explore fully. The divisions 

 which most require further work are East Mayo, Longford, Tyrone, East 

 Donegal, Eoseommon, Cavan, Leitrim, and Fermanagh. The absence of many 

 species from these areas is therefore only apparent, as they are known to be 

 generally distributed. 





Fig. 1. 



[2E] 



