MILNE: CONTRIBUTIONS TOWARDS IRISH MOLLUSCA. 415 



as the type, and of three from SHevemore village one was 

 var. plumbea and two the brown form. 



Limax agrestis is plentiful; the type at Annagh Bay, under 

 stones on the shore ; with which are associated the vars. 

 tristis and syivatica, the latter, the commonest form, 

 also occurring at the Signal Tower, the Colony, and 

 Dugort, besides being the usual one taken on the main- 

 land at Westport and Newport. 



L. arborum var. nemorosa is also found at Newport, where 

 it seems much more in place on the mountain-ash trees 

 than crawling up and down the heather stems on SHeve- 

 more mountain, as I often saw it, looking, as indeed it is, 

 the mournful relic of a past age. 



Succinea putris.— First among the Helicidse, Sucdnea putris 

 occurs in great numbers, though of small size, in two 

 localities : in fields below the Colony, and on the shell- 

 mounds and strands at Keel. In both of these places, 

 especially the latter, it must get a fair quantity of salt ; a 

 south-westerly wind will bring the waves over the shell- 

 mounds, but, though this may have stunted their size, it 

 does not seem to diminish their numbers. 



S. elegans was only found on the mainland near Newport. 



Vitrina pellucida is apparently an old inhabitant, as it occurs 

 in the deposits on the warren, where it still flourishes. A 

 small colony at Ship Point were noticeable for their very 

 dark colouring. It is also found on Innishbiggle. 



Six species of Zonites were discovered on the island. 

 The first two 



Zonites cellarius and 



Z. alliarius are so ubiquitous in Ireland that it was not sur- 

 prising to find both at the Colony, and the latter also at 

 the Signal Tower, Annagh Bay, and Dugort, besides its 

 occurrence in the deposits. The var. alba of Z. ceUariiis 

 which I had taken at Westport, did not turn up on the 

 island. 



