Clare Island Survey — Land and Fresh-water Mollusca. 23 33 



The total list of species found on Inishturk is as follows :- 

 List of Mollusks of Inishturk. 



Limax arborum. 



[L. flavus (probably introduced 



by man).] 

 Agriolimax agrestis. 

 A. laevis. 

 Milax gagates. 

 Vitrina pellucida. 

 Hyalinia cellaria. 

 H. alliaria. 

 H. nitidula. 

 H. pura. 

 H. radiatula. 

 H. crystallina. 

 Euconulus fulvus. 

 Zonitoides nitidus. 

 Z. excavatus. 

 Arion ater. 

 A. subfuscus. 

 A. intermedins. 

 Punctum pygmaeum. 

 Pyramidula rotmidata. 



Helicella itala. 

 Hygromia hispida. 

 Helix aspersa. 

 H. nemoralis. 

 Cochlicopa lubrica. 

 Carychium minimum. 

 Pupa anglica. 

 P. cylindracea. 

 Vertigo antivertigo. 

 V. substriata. 

 V. pygmaea. 

 Clausilia bidentata. 

 Ancylus fluviatilis. 

 Lhnnaea pereger. 

 L. palustris. 

 L. truncatula. 

 Pisidium casertanum. 

 P. nitidum. 

 P. pusillum. 

 P. milium. 



A few of these call for special mention. Limax flavus, a single specimen, 

 which occurred beneath a stone close to the Congested Districts Board store at 

 Garranty, is, I feel sure, an artificial introduction. Except in this one 

 instance, and excluding the influence exercised upon it by browsing cattle and 

 sheep, I could detect no sign that man's habitation of Inishturk had affected 

 its molluscan fauna. Milax gagates, though frequent round the north-eastern 

 shore, is not so abundant as on most of the western islands, while H. alliaria 

 — perhaps the most typical land-shell of the west of Ireland — appeared to be 

 almost extinct, and though after vigorous search I managed to find a few dead 

 shells here and there throughout the island, no living specimen occurred. The 

 type of Z. excavatus was frequently met with, and of the var. ■ vitrina a few 

 specimens were taken near Garranty. Helicella itala, Hygromia hispida, and 

 Clausilia bidentata are confined to the south shore, the latter two being 

 conspicuous absentees from the graveyard and the village at Garranty. 

 V. antivertigo was several times encountered, but the other two species of this 



K.I. A. PROC, VOL. XXXI, E 23 



