igi-- Kexxard and Woodward. — On Non-Marine Mollusca. 93 



NOTES ON NON-MARINE MOLLUSCA 

 FROM SOME IRISH LAKES, 



OBTAINED BY THE LATE MAJOR H. TREVELYAN, F.Z.S. 



IN igii. 



BY A. S. KENNARD, F.G.S., AND B. B. WOODWARD, F.L.S. 



Last year we gave an account of the non -marine mollusca 

 which had been obtained by Major Trevelyan from some 

 Irish lakes in 1910 (Irish Nat., 1911, pp. 46-51), and we had 

 hoped that this might be the first of a series. It is therefore 

 a matter of deep regret to us, as it must be to all Irish 

 naturalists, that Major H. Trevelyan passed suddenly away 

 on January 28th last. He was a true sportsman -naturalist, 

 and his death leaves a void which it will be hard to fill. 



The results of his dredgings in 191 1 are in every way 

 quite as important as those of the previous year, w^hilst far 

 more lakes were examined. 



Anlaban Lough, Co. Fermanagh. 



This lake is 200 to 250 yards in length, and is situate at 

 an altitude of 1,000 feet. 



Pisidium subtnincatum. Malm. Pisidimn Lilljehorgii, Cless. 



casertanum (Poll). 



Shean North Lough, Co. Fermanagh. 



Limnaea pereger (Miill). Sphaeriuni corneum (Linn.) 



Planorbis albus, Miill. Pisidium subtruncatum. Malm. 



Ancylus fluviatilis, Miill. casertaiiiim (Poli.) 



Vahata piscinalis (Miill.) pusillum, Jenyns. 

 Bithynia tentaciilata (Linn.) 



Mallybreen Lough, Co. Fermanagh. 



Limnaea pereger (Miill.) Pisidium Lilljeborgii, Cless. 



Pisidium pusillum, Jenyns. 



TuLLYvoGY Lough, Co. Fermanagh. 



Pisidium casertanum (Poll), (Lake Pisidium milium. Held, 



form and very globose) pusillum, Jenyns. 



ohtusale, Jenyns (very large Lilljeborgii, Cless. (very large and 



and globose) globose) 



A 3 



