Notes 071 the Birds of Lough S willy. 177 



mentioned the Whimbrel, the Bar-tailed Godwit, and the Knot. 

 The Black-tailed Godwit is also an occasional visitor. A bird 

 which used to be extremely plentiful with us all the winter, 

 the Golden Plover, has become much scarcer than formerly, 

 and seems disposed to limit its stay with us to a short time in 

 the end of autumn. I can suggest no reason for this. On the 

 other hand, the number of Curlew which winter with us, has 

 of late years, largely increased. This I attribute to the fact 

 that we have had no long-continued frost for the last six or 

 seven years. In long-continued frost the mud fiats on which 

 the Curlew mainly feed, become gradually coated over with 

 the floating ice deposited by the receding tide, and then 

 hundreds of them perish for lack of food. I recollect that, 

 towards the end of a severe frost which occurred seven or 

 eight years ago, it was possible to knock down Curlew with a 

 stick in the fields adjoining lyOUgh Swilly and Lough Foyle. 



THE IRISH LAND AND FRESHWATER MOLLUSCA. 



■ BY R. F. SCHARFF, PH.D., B.SC. 



( Concluded from page 1 53 . ) 



GASTROPODA. 



PROSOBRANCHIA TA. 



Genus— ACME. 



Acme lineata, Drap. 



I. — III. IV. V. VI. VII. VIII. — — XI. XII. 



This species is widely distributed in Ireland. It should be looked for 

 among moss and under stones in damp localities. 



Foreign Distribution.— Great Britain, France, south Germany, 

 Austria, Switzerland, Italy, Algiers, and Morocco. 



Genus— CYCLOSTOMA. 



Cyclostoma elegans, Mull. 



_ _ _ _ v.? - - — - - XI..? — 



It appears that hitherto only dead shells of this species have been found 

 on various parts of the coast, which induced Thompson (15) to doubt its 

 being indigenous. Mr. Milne sent me a specimen which had been taken 

 at Inch (Donegal), but it could not be ascertained whether it had lived 

 in the locality. 



Genus— PALUDINA. 



Faludina vivipara, L. 



This large freshwater species is said to have been found by Capt. Brown 

 in a stream at Newtownards, Co. Down; I hope some of our northern 

 conchologists will carefully investigate that district. Thompson (15) 

 never saw an Irish specimen, and it must, therefore, be placed among 

 those doubtfully native. 



B 



