Clare Island Survey — Land and Fresh-water Mollusca. 23 31 



Inishkea. 



During the Clare Island Survey no party visited these islands, which lie 

 to the west of The Mullet. From the North Island, however, I possess 

 specimens of Limnaea pereger (Plate II, fig. 23), collected in 1905 by 

 E. LI. Praeger. These are somewhat similar to examples taken in Cross 

 Lough on The Mullet, and are of an opaque white colour, strong in texture, 

 with an acute spire and slender body-whorl. 



Cahek Island. 



Caher is a small rocky island about half a mile in width and one mile in 

 length, lying some two and a half miles N.E. of Inishturk, partially drift- 

 covered, and rising gradually towards the north-west, where it attains an altitude 

 of some 200 feet. Thus the northern and eastern parts of the island are more 

 or less sheltered from the prevailing winds, and though the vegetation here 

 can scarcely be called luxuriant, it is sufficient to harbour at least twenty-four 

 species of land mollusca. A few shallow pools near the highest point of the 

 island, containing Limnaea pereger ; several marshy spots in which L. truncatida 

 is to be found : and the small lakelet (Kilkeel Lough) about one hundred 

 yards in diameter, near Caher Point, are the only habitats on the island for 

 fresh-water shells. In the last-mentioned locality L. pereger occurs also and 

 is associated with Pisidium milium and P. personatum. The water of this 

 lake is distinctly saline. (See report on Ehizopoda, by Wailes and Penard, 

 Part 65, p. 12.) 



The list of shells taken by me on the island is as follows ; — 



List of Mollusks of Caher Island. 



Limax arborum. Vallonia pulchella. 



Milax gagates. Helicella itala. 



Agriolimax agrestis. Helix aspersa. 



A. laevis. Cochlicopa lubrica. 



Vitrina pellucida. Carychium minimum. 



Hyalinia alliaria. Vertigo antivertigo. 



H. nitidula. V. substriata. 



H. radiatula. V. pygmaea. 



H. pura. Pupa anglica. 



H. crystallina. P. cylindracea. 



Euconulus fulvus. Limnaea pereger. 



Arion ater. L. truncatula. 



A. intermedius. Pisidium milium. 



Pyramidula rotundata, P. personatum. 



