JOURNAL OF CONCHOLOGY. 167 



CONTRIBUTIONS TOWARDS A LIST OF 

 IRISH MOLLUSCA. 



By J. G. MILNE. 



During a walk across Ireland, in August, I collected the 

 undermentioned specimens in the counties of Armagh, Monaghan, 

 Fermanagh, Donegal, Mayo East, Roscommon, Leitrim, and 

 Cavan, and as very little is known conchologically of these parts 

 of the island, the list may be of interest. The walk, proper, 

 only extended from Armagh to Bundoran^ in Donegal, as an 

 accident prevented my returning in the same manner, as I had 

 intended ; however, I was able to work round Lough Gara from 

 Ballaghaderreen to Boyle, spend a Sunday at Dromod, in Lei- 

 trim, and get three hours at Belturbet Junction. 

 Sphaerium corneum. — Ulster Canal, Drummaconor, Mon- 

 aghan (250 ft. alt, lime and peat), fairly plentiful in the 

 canal (here cut through the limestone) and peat dykes 

 running down into it. Curragh, Fermanagh (200 ft. alt., 

 peat) a few young specimens in a brook. Rosscole Point, 

 Fermanagh (150 ft. alt., peat), numbers of dead shells in the 

 rejectamenta from Lough Erne. 

 Pisidium amnicum. — Rosscole Point, Fermanagh (150 ft. alt., 



peat), in rejectamenta from Lough Erne. 

 Bythinia tentaculata. — Ballynahone, Armagh (200 ft. alt., 

 peat), plentiful in a tributary of R. Callan. Ardgonnell, 

 Armagh (200 ft. alt., lime and peat), in numbers in the 

 Ulster Canal wherever the sides were banked with stone. 

 Drummaconor, Monaghan (250 ft. alt., lime and peat), in the 

 Ulster Canal and peat dykes connecting with it. Moor 

 Lough, Fermanagh (180 ft. alt., peat), numerous. Ross- 

 cole Point, Fermanagh (150 ft. alt, peat), in rejectamenta of 

 Lough Erne. Roosky, Leitrim (130 ft alt, peat), very 

 numerous (and dirty) in R. Shannon. 



