286 The Itish Naturalist. September, 



these are absent, it signifies that the record is an old one and 

 the locality not known, Doubtful records are queried. 



? Hyalinia helvetica, Blum. — W. &E. Planorbis carinatus, Mull. — 



Geomalacus maculosus, Allnian. — W. M. & E. 



Testacella haliotidea, F. Big. — E- ? P. vortex, L. 



Helix sericea, Drap.— E. ? P. glaber, Jeff. 



Coecilianella acicula, Mull.— E. Neritina fluviatilis, Iy. — E. 



Vertigo angustior, Jeff. SpliDerium lacustre, Mull. — 



Alexia denticulata, Mont. — E. M. & E- 



? Limuaea glabra, Miill. Pisidium nitidum, Jenyns. — M. 



Iv. stagnalis, L. — E. P- amnicum, Miill.— E. 



FURTHER NOTES ON THE 



LAND AND FRESHWATER MOLLUSCA 



OF CORK WEST AND KERRY. 



BY A. W. STELFOX AND J. N. MILNE- 



After the Cork Conference was over a few days were spent 

 by us at Glengarriff and Killarney. Our principal aim was to 

 reach the only known habitats for Lhmicea involuta and 

 Pisidium hibemicum. The former is found in the now well- 

 known lake on Cromaglaun Mountain, above the Upper Lake 

 at Killarney, The latter species has only been taken by Dr. 

 Scharff, who describes the habitat as " A small mountain tarn 

 known by the name of Lough Nagarriva, about 1,200 feet above 

 Glengarriff in the County Cork." 1 Lough Nagarriva is one 

 of three small lakes three miles north-by-east of Glengarriff 

 and close to the summit of Barraboy Mountain. Lough 

 Nagarriva is just over the Kerry border, while the other two 

 —Lough Namaddra and the third and smallest tarn, which 

 bears no name 011 the Ordnance map — are both in County 

 Cork. Lough Nagarriva must be two or three acres in area, 

 and Lough Namaddra about one to one and a half; both are 

 shallow and peaty, but contain plenty of food plants and 

 several forms of animal life besides the mollusca. After close 

 on a five hours' climb we reached the unnamed tarn — which 

 lies some 150 feet higher than the other two — and in this we 

 found plenty of Pisidium hibemiatm, all however were young 

 specimens. Descending to Lough Nagarriva we again found 



1 I.N. 1895, p. 335. 



