Stelfox — List nf Land and Freshwater 31ollusks of Ireland. 81 



Zonitoides excavatus (Bean). 



Selix excaidtu, Thompson, Cat. L. & 

 F. W. Moll, of Ireland, p. 20, 1840. 

 Hyalinia excavata, Scharfl, Irisli Nat., 

 p. 67, 1892. 



WD ED LD AN 

 FE TY AR DO 



WMfsL LE MO 



EM RO CV LH 



WC NG LF WHME 



SC KC KD DU 



CL ^^ QC cw wi 

 NK LK ST KK WX 

 SK MC EC WA 



WC 



This is the only tei'restrial species 



which in Ireland ^ye could term ealci- 



fuge ; all the localities from which 



it has been recorded lie outside the 



Carboniferous limestone areas, with the 



possible exception of the Limerick 



station. It has a wide range in the 



southern, western and north-western 



counties, but seems absent from the 



north-east and the central plain, and is 



rare or absent in all the eastern counties. 



Old records from Dublin and Down have 



not been verified in recent years. As 



this species, however, is found in parts of 



Kilkenny and Wexford, there seems no 



reason why it should not also occur 



in Carlow, Wicklow, and Dublin, the 



greater part of this area being formed 



of non-calcareous rocks. As a general 



rule the type and the var. vitrhia are 



equally common ; but in many cases, 



though found in the same district, each 



form lives in separate colonies, an 1 



in some districts only one of them may 



occur. Mr. Phillips tells me that this 



R.I. A., PEOC. VOL. XXIX., SECT. B. 



is his experience in the south-east, 

 where he has never seen the type. The 

 presence of this shell on our islands 

 has only been noted in two cases, viz., 

 Clare and Achill, both in West Mayo. 



Euconulus fulYus (Miiller). 



Helix fidva, Thompson, Cat. L. & F. W. 

 Moll, of Ireland, p. 11, 1840. 

 Rydinia fuha, SeharfF, Irish Nat., 

 p. 67, 1892. 



WD ED LD AN 

 FE TY AR DO 

 WMSL LE MO 



EM RO CV LH 

 WC NC LF WH ME 

 SG KC KD DU 

 CL NT QC CW WI 

 NK LK ST KK WX 

 SK MC EC WA 

 WC 



A very hardy little moUusk and found 

 almost everywhere, though seldom met 

 with in large numbers. Commonly 

 found on the western and other islands. 

 It is one of the few land-shells which 

 live in the neighbourhood of our peat- 

 bogs. Shows little variation. 



ARIONIDAE. 



Arion ater (Linne). 



GeneiaUy distributed over the main- 

 land and islands. It shows much 

 variation in colour and many examples, 

 even when practically fuU-grown, are 

 distinctly banded. In the mountainous 

 districts, as well as on the west coast and 



