282 The Irish Naturalist. September, 



Carychium minimum, Mull.— Common in all likely habitats. 



lYlelampus Dldentatus* Mont— This brackish-water shell occurred 

 very abundantly at Rostellan. 



Llmnaea aurlcularla, L. — Two specimens were taken by Mr. F. 

 Balfour Browne in the marsh west of Youghal, constituting our only 

 record for this somewhat local shell. 



L. peregra, Mull. — Young shells taken everywhere, and a few fine 

 adults were found in a roadside pool near Rostellan. This species 

 was noted at Gougauebarra L,ough. 



L. palustrls, Mull. — This species, like the last, was found abundantly 

 everywhere. A slender form was taken, with the type, in the marsh 

 at Ballj'phehane, which it is possible may have been the shell re- 

 corded by the late Dr. Jeffreys as L. glabra, Mull. It may be as well 

 to give here the history of that record from the late Mr. W. Thomp- 

 son's Catalogue of the land and fresh-water Mollusca of Ireland, 

 reprinted from Ann. 6° Mag. Nat. Hist., Sept., 1840. " Limnaens glaber, 

 Gray. — I have not seen any Irish specimens of this Limnaem, which 

 is thus noticed in the supplement to Mr. Jeffreys' paper in the 

 Ljnnean Transactions, vol. 16, p. 520: — 'Ireland, Rev. James 

 Bulwer.' On inquiry of Mr. Bulwer, he stated that the shell so 

 noticed was considered by him but a variety of L. palustris. By a 

 letter from Mr. Jeffreys dated June 8, 1840, I learn that ' L. elongatus 

 was mentioned as Irish on the authority of the late Dr. Goodall, who 

 stated that he had received specimens from Mr. Bulwer.' Mr. 

 Jeffreys adds, ' I have, however, two or three undoubted specimens 

 among a collection of Irish shells, which I purchased about three 

 months ago from Mr. John Humphreys of Cork — the tray which 

 contained them was labelled Cork.' From Mr. Humphreys I learn 

 that he had not identified the species, but that the note of locality 

 appended to the shells alluded to by Mr. Jeffreys was strictly correct." 

 Thus it will be seen that Dr. Jeffreys recorded this L. glabra — firstly, 

 on the authority of Dr. Goodall, and without seeing the specimens 

 for himself; secondly, from specimens taken from a collection which 

 had been kept in open trays — both of which would now be con- 

 sidered untrustworthy data for a record of a species not hitherto 

 found in Ireland. 



L. truncatula, Miill.— Common at Ballyphehane, Ardsallagh, The 

 Gearagh, Carrigrohane, Ballinspittal, and L/Ough of Cork. 



Physa fontinalis, Iy. — Neither this nor the next species occurred 

 commonly, but specimens were taken at Ballyphehane, Youghal, The 

 Gearagh, Carrigrohane, and Blarney. 



Aplexa hypnorum, Iy. — Distinctly rare, and only found at Ballyphe- 

 hane and in the marshes at Youghal. 



Planorbls marglnatus, Drap Rare at Youghal (Balfour Browne), 



but common in drains running into the lake at Rostellan. 



P. spirorbis, L. — A small form was common at Ballyphehane, 

 Youghal, Carrigrohane, and Rostellan. 



