178 COLLIER AND STANDEN : 
composed of the more ancient rocks, of Connemara and West 
Mayo. Eastward of Galway is the low limestone country ; and 
across the bay to the southward rise the terraced limestone hills 
of the Burren district of Co. Clare, whilst across the mouth of 
the bay, and midway between the coasts of Clare and Conne- 
mara lie the Aran Islands. The geological features of the 
district are exceedingly diversified, and proved to be of a some- 
what unpromising character conchologically, whenever we got 
off the limestone. 
Immediately after arriving at Galway the whole party drove 
through the suburb of Salthill to Gentian Hill, a promontory of 
drift standing out into the sea, whence a capital idea of the 
geographical features of the district may be obtained. Here we 
found a few land shells, including Vztr7na pellucida, of which, as 
usual at this time of the year there were only dead specimens ; a 
small compact form of Ayalinia crystallina ; and one specimen 
(found by Mr. W. F. de V. Kane) of Zyalinia excavata. Arion ater 
and its var. d7uwnnea were abundant, together with Lzmax mar- 
ginatus. .The rain coming on in the afternoon brought out 
Flelix nemoralis in quantity, of ordinary form, but amongst them 
were four examples of var. voseozonata and a few of varr. albo- 
labiata, rubella, and castanea. The H. nemoralts found here are 
not at all comparable for size and variety with those found at 
Ballyvaughan, directly across the bay. Alexia denticulata was 
very common on the shore, and of large size. The marine 
species observed were the usual common littoral forms. 
On the 12th we proceeded by the recently opened’ light 
railway to the Twelve Bens of Connemara, passing through some 
most charming scenery. The original intention was for the 
party to stop at Ballynahinch, but the station being unfinished, 
we had to alight at Recess. This caused a deviation 
from our plans, as we had intended to search the shores of 
Ballynahinch Lake for Vertigo Moulinsiana, this being one of 
the recorded localities for that rare shell, Not caring to climb 
Ben Lettery with the bulk of the party, a few of us decided, as 
J.C., viii., April 1896, 
