Clare Island Survey — Land and Fresh-water Mollusca. 23 19 



sufficient vegetation to shelter it ; clumps of Luzula maxima in all cases 

 being its habitat. Three colour-forms occur, viz., greenish-brown, pale 

 brown, and darker brown. 



H. hispida L. — Great numbers of a dark and very hispid form occur around 

 the Abbey, while along the north-eastern cliffs and near the Harbour a 

 paler form occurs more sparingly. 



Helix aspersa Mull. — Almost confined to the areas around the Harbour and 

 the Abbey, but was also taken by Welch along the south coast between 

 these two localities. A marked peculiarity shown by many specimens of 

 this shell on Clare Island, as well as on the adjoining islands and in parts 

 of the mainland, is that while the young shells are all of the normal 

 mottled colouring the last or last two years' growth is almost black, but 

 frequently this is interrupted by vertical streaks of a chestnut colour. 

 Seldom does it happen that the colouring of any specimen is uniform 

 throughout the entire period of its growth. (Plate II, fig. 53.") Beneath 

 the stones in the interior of the Abbey nearly all the shells are 

 malformed in a remarkable manner, being wrinkled and so fragile that 

 one can scarcely handle them. 



H. nemoralis Mull.— Except along the north-east coast, this species is very 

 scarce indeed, but it nevertheless is to be found on the cliffs of Knockna- 

 veen, and on the southern shore between the Harbour and the Abbey. 

 The commonest form was 00300 libellula or rubella. Some of those taken 

 on Knoeknaveen had very thin shells, which were covered with bruises, 

 probably caused by the specimen being blown down the cliff in stormy 

 weather. White-lipped examples were not plentiful, but in the last- 

 mentioned locality J. N. Milne took a very beautiful one of var. rubella, 

 without bands. A single specimen of the var. citrinozonata occurred at 

 the same place. 



Cochlicopa lubrica Mull. — Common throughout most parts of the island, 

 greenish specimens being the only form of variation. 



Carychium minimum Mull. — Generally distributed. The majority of the sheila 

 are rather large and slender. 



Pupa anglica Fer. — Fairly common in all portions of the island, and especially 

 common on the great cliff of Croaghmore and along the N.E. coast. 

 Type and vars. pallida and alba all observed, but the type is the prevail- 

 ing form. (Plate II, fig. 4b\) 



P. cylindracea Da Costa. — Like P. anglica, this shell is found nearly every- 

 where, and is equally abundant on Croaghmore. A large proportion of 

 the shells from this locality appear referable to the var. anconostoma 

 Lowe, the denticle being poorly developed or absent. (Plate II, figs. 47, 



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