Ste}.fox— List of Land and Freshwater Mollusks of Ireland. 95 



ing as far west as Limerick, and 

 Lisdoonvarna in Clare, and then re- 



WD ED LD AN 



PE TY AR DO 



WMSL LE MO 



EM EO CV LH 

 WG NG LF WH ME 



»G KG KD DU 

 CL NT QC CW Wl 

 NK LK ST KK WX 



SK MC EC WA 

 WC 



appearing in Ulster, where it is found 

 in six or seven isolated stations extend- 

 ing from Downpatrick in Down to 

 Dunfanaghy in "West Donegal. In two 

 of the northern stations — Downhill in 

 Derry andNewtownstewart in Tyrone — 

 the only form that has ever been 

 observed is the var. hdea, and always 

 bandless. In the remaining Ulster 

 habitats this form and the type occur 

 in about equal numbers ; but no other 

 variation is found, except the var. 

 arenicola and specimens with a band 

 formula of 10345. In most of the 

 eastern and central localities where this 

 shell is to be met with, we get all the 

 variation usually associated with it in 

 England; but in the Clare stations Mr. 

 Phillips has observed only the type. 

 Specimens of the small white-lipped 

 sand-hill form of Helix nemoralis often 

 met with on the west coast are quite 

 indistinguishable from this species ex- 

 ternally ; and it is necessary to examine 

 the darts in order to separate them, 

 unless one is acquainted with tlie 

 district, when their habitats will be 

 alone sufficient.' That of our present 

 ' For this reason I have placed the West 



species is generally a glen, church- 

 yard, or damp hedgerow with luxuriant 

 vegetation ; while the habitat of the 

 dwarf white-lipped Helix nemoralis is 

 always the open wind-swept sand- 

 dunes. 



Helix pisana Miiller. 



WD ED LD AN 



FE TY AR DO 

 WMSL LE MO 



EM RO CV LH 

 WGNG^LF WHME 

 SG KC KD DU 

 CL NT QC CW WI 

 NK LK ST KK WX 

 SK MC EC WA 

 WC 



Practically confined to the sand-dunes 

 which fringe the coasts of Louth, 

 Meath, and Dublin, where it has been 

 known for almost a century. The old 

 records for Galway and South Kerry 

 seem both erroneous ; but there is a 

 specimen in the Dublin Museum from 

 " La Bergerie," in Queen's Co., and 

 another from Drumcondra, a suburb of 

 Dublin, so that possibly the species may 

 occur locally further inland.^ In the 

 places where it is to be found it is a 

 common species, and shows considerable 

 variation, the type as well as the white 

 and chestnut-brown forms being gene- 

 rally met with. Our climate seldom 

 gives this shell a long enough summer 

 to complete the lip, and in some years 

 the average size of specimens is smaller 

 than in others. 



Mayo record in the list of " doubtfuls." 



" I have doubts as to the trust worthiness of 

 the Queen's Co. record. 



