44 Ihc Irish Naturalist. March, 



on Howie's Dam — a bird not often seen on fresh water." (PI. II., 



figs. 7.8)- 



Loc. — Mouth of Antrim River, Lough Neagh, in about lo ft. of water, 

 just where river opens into lake. Coll. — A.W.S. and R.J.W., August, 

 1907. Alt. — 46 ft. Assoc. — P. caseYtanum, P. nitidum, P. milium 

 and P. snbtruncatnm. Remarks — An abundance of Sphaerium 

 lacitstre and S. come urn also occurs in this habitat. 



Loc— Lough Duff, Sallagh Braes, near Larne, a very shallow tarn on the 

 basaltic plateau. Coll. — A.W.S. Alt. — 1,050 ft. Assoc. — P. 

 nitidum and P. subtruncatum. 



Loc. — In old watercourse by the second lock of the Lagan Canal above 

 Belfast. This habitat is quite dry in summer time as a rule. Coll. — 

 A.W.S., 1916. Alt. — About 30 ft. Assoc. — No other Pisidia seen. 

 Remarks — The shells were very small and stunted. 



Loc. — Ditch by the River Lagan, Malone, above Belfast. Coll. — H.O., 

 May, 1 91 3. Alt. — About 50 ft. 



Loc. — One of the lakes on Fair Head (clear peaty water, with stony 

 bottoms). Coll. — H.O., May, 1913. Alt. — About 500-600 ft. 

 Assoc. — P. nitidum. 



Loc. — Woodburn Reservoir, Carrickfergus. Coll. — J. Reilly, 1898, per 

 R.J.W. 



Loc. — In the River Main near Galgorm, above Ballymena. Coll. — 

 A.W.S., April, 191 2. Assoc. — P. nitidum, P. milium and P. sub- 

 truncatum. 



Loc— Tarn ^ mile X.W. of Little Trosk and J mile N.E. of L. Fad, N.W. 

 of Carnlough, a shallow tarn on basaltic plateau. Coll. — A.W.S., 

 April, 1912. Alt. — About 1,000 ft. Assoc. — P. nitidum 'a.nd P. lillje- 

 borgi. 



Derry. 



Loc. — Mill-dam one mile S.E. of Magherafelt (in drift). Coll. — A.W.S., 

 April, 1 9 10. Alt. — About 100 ft. 



WELSH RECORDS FOR P. HIBERNICUM. 



(Communicated by Mr. Charles Oldham, F.L.S.). 



Denbighshire. 



Loc. — Llyn Aled, in the Hiraethog Mts., a large tarn with stony bed. 

 Coll. — CO., June, 1917- Alt. — 1,740 ft. Assoc. — No other 

 Pisidia seen. Remarks — B.B.W. agrees with identification. 



Carnarvonshire. 



Loc. — Llyn Ogwcn, in the Snowdonian Mts. Coll. — CO., Sept., 191 1. 

 Alt. — 984 ft. Assoc. — P. lilljebovgi. Remarks — Recorded as P. 

 obtusalehy CO., /. of C, vol. xiii., p. 353 ; and by B. B. W., Cat., 

 p. 124. 



