23 36 Proceedings of the Royal Irish Academy. 



Xotes on some of the more interesting species. . 



G. P. Farran reports L. maximus from near the harbour, and it seems most 

 likely that this slug may have been imported from the mainland as on Clare 

 Island and Achill Island. 



H. cellaria is confined to the graveyard and the neighbourhood of houses. 

 Probably native in the former situation. Z. excavatiis, except on the cliffs at 

 Bunnamullan Bay, is very local and rare. Of S. edentulum I took only one 

 example ; this occurred on the cliffs east of Doonahineena. V. pulehetta 

 is apparently almost extinct, except on several sandy areas between Lough 

 Bofin and The Stags of Bofin, though abundant in the deposit near Carriekna- 

 moyla. H. hispida seems to be confined not only to the graveyard, but to one 

 spot in this enclosure, viz., beneath the east window of the old church. 

 H. itala is abundant on all the sandy areas, but E. tarbara and H. aspersa were 

 only noted near those along the southern and eastern shores. Of H. nemoralis 

 G. P. Farran says : — " Xone seen alive ; recent shells common in sandhills." 

 These, at first, were all I could find, and the species appeared to be extinct 

 on all the sandy areas. Profiting, however, by experience gained on the other 

 islands, I afterwards found it living on the cliffs east of Doonahineena, and 

 sheltering under Saxifraga umbrosa on the bluff's south of Church Lough. 

 In the latter place it was fairly common, but in the former it appeared to be 

 struggling to maintain its hold. All the shells were small, and also 

 exceedingly delicate in texture. Several of the var. libelhda with white lips 

 and no bands no doubt would have been passed in certain quarters as Helix 

 hortensis} but an examination of the darts showed them to be H. nemoralis. 



Pupa anglica occurred frequently, the beantiful var. alba being almost the 

 commonest fonn met with. P. muscorum I could not find alive, though to 

 judge by the deposits it must have been very common formerly. It is 

 evidently one of the shells which, along the west coast at any rate, is losing 

 ground. (See Irish Nat., xvi, 359.) 



Vertigo antivertigo and V. subst>-iata were met with on the shore of 

 Loughnabraud and at Cloonamore, but V. pygmaea was seen only near the sandy 

 area east of Church Lough. Though common in the deposits, it was not till 



1 In spite of friendly warning from B. Welch and myself, J. W. Taylor (Mon. L. and F. W. 

 Moll., vol. iii, p. 363) has recorded H. hortensis from Achill Island and Ballina. I am quite sure, 

 however, that this species has never been taken so far in either division of Co. Mayo. The former 

 record is an old one of J. G. Milne's (Joum. of Conch., vol. vi, p. 417), which 1 have previously 

 pointed out must be an error (Proceedings E.I. A., xxix, Seciion B, 95. 1911), while the habitat 

 given in the latter case — Bartragh Island — would be sufficient to cast doubt upon the record to anyone 

 who had studied the habits of the respective species in this country. As Mr. Welch has so often 

 pointed out, H. horteiais does not live on the exposed sandy areas of the west coast, where the 

 white-iiitped form ui H. nemoralis is ouite common. 



