tSgS.] 261 



SUPPLEMENTARY NOTES ON THE MOIvLUSCA OF 



SOUTH-WEST IRELAND. 



BY A. G. STUBBS and LIONEI. E. ADAMS, B.A. 



The following brief notes on the Mollusca of S. W. Ireland, 

 contributed by request, embody the result of a week's excursion 

 to that most interesting locality during the early part of 

 September, and are intended to supplement Mr. Standen's 

 Report on the Mollusca of the Ken mare Excursion, published 

 in this Journal (p. 218). We do not take up valuable space by 

 mere recapitulation, but w^here our experiences differ from 

 those who worked the district in July comment will be 

 made. Had the weather been similar to that experienced in 

 July in all probabilit}- these notes would not have been 

 WTitten, but owing to two days' heavy rain a little further 

 information is forthcoming. We use the classification adopted 

 by Dr. Scharflf for the sake of convenient reference to the 

 Report. 



Hyalinia Draparnaudi, Beck. — Though not within the district 

 worked in July, it may be interesting to record that a single dead shell, 

 14 mm. in diameter, was found at Blarney Castle. This shell is precisely 

 similar in form and texture to the recognised Drapamaudi from Tenby and 

 Exeter, but without the animal it is difficult to be positive, especially as 

 both cellaria and the "doubtful form " were present. 



Hy. cellaria, Miiller. — Though rain had fallen, this species was not 

 at all common at Kenmare nor very large, but at Killarney and Aghadoe 

 some extremely fine specimens occurred. At Bantry they were also 

 very fine. 



Hy. radiatula, Alder. — The type throughout the district bears a very 

 small numerical proportion to the variety. This is the case also in 

 Antrim. 



Hy. pura. Alder — Only a few dead shells were noted from Tore 

 Woods. 



Arlon intermcdlus, Normand (= A. minimus, Simroth). — This 

 species, found plentifully, is much darker and more strongly banded 

 than is the case in Britain. 



Geomalacus maculosus, Allman. — Specimens from GlengarriflT 

 are nearly black in ground-colour and the spots small and white, whereas 

 those from Kenmare have a greenish ground-colour, with yellow spots, 

 and bigger than those from Glengarriff, In all cases the spots are less 

 numerous in the regions of the lateral and dorsal bands which exist in 

 other slugs, and this is especially noticeable in young specimens. The 

 creature has a habit of curling up into a perfect sphere when irritated, 

 after the manner of a woodlouse. 



