22 14 Proceedings of the Royal Irish Academy. 



Cioniscus unica (Montagu). (Aclis.) E. Bare : two shells in 5 f. off 

 Inishlyre. 



Aclis ascaris (Turton). M. Bare : 7 shells dredged in 10 f., and 6 in 19 f. 



A. supranitida (S. V. Wood). M. Bare : 3 shells dredged, 1 in 16 f. and 2 in 

 from 5|-11 f., the largest 5 mm. in length. 



Paludestrina stagnalis (Basterot). {Hyclrobia uhae Bennant.) E. Swarming 

 in still brackish waters amongst the inner islands, notably at Annagh 

 Island, where hundreds were seen floating foot upwards and drifting 

 before the wind on sunny pools. The dead shells form a conspicuous 

 creamy band at high water along the beach at Mulranny. Abundant in 

 dredgings off Inishlyre at 2 f. and at 4 f. 



Lunatia catena (Da Costa). (Natica.) M. ? E. Bare ? One shell on the 

 beach at Annagh Island. Not identified in any of the 52 dredgings 

 made, though some very small immature shells occurring at 10 f. may 

 perhaps belong to this species. 



L. Alderi (Forbes). (Natica.) W. M. E. Frequent, living and dead, in from 

 4-19 f. 



Lamellaria perspicua (Liune). W. M. E. Occasional. One living at low 

 water, Portlea, Glare Island, and another in 5 f. off Granuaile's Castle ; 



1 living in 4 f. off Inishlyre ; 1 shell in 10 f. off Light-house Cove, and 



2 in the bay, 1 in 11 f., the other in 14 f. 



Capulus hungaricus Linne. W. M. Bare : in 3 dredgings, 2-19 f., a total 



of 4 immature shells. 

 Homalogyra rota (Forbes & Hanley). E. Bare : 2 shells in drift material 



from rock-pockets, Dorinish, 1910. 



Littorhia obtusata Linne. | 



T ,.,, T . , W. E. Common in all suitable stations. 



L. littorea Lmne. I 



L. neritoides (Linne). W. Abundant in many stations on the E. and S. of 

 the island on shaded rock-faces or in rock-clefts, associated with L. ruclis 

 and often several feet above high-water mark ; also amongst Lichina with 

 Lasaea rubra and Turtonia minuta. Specimens fully 6 mm. in length 

 were taken on cliff-faces south of Granuaile's Castle. Not seen on the 

 eastern bay shores. 



L. rudis (Maton). W. M. E. Common in all suitable stations. 



Var. jugosa Montagu. Frequent, living, at low water Portlea, Clare 

 Island, also dredged in 19 f. in the bay, 14 shells. 



Var. tenebrosa Montagu. Abundant in muddy creeks and channels, 

 Annagh Island. 



Lacuna puteolus (Turton). W. E. Bare : Gne shell at Annagh Island, 

 another in 4 f. off Inishlyre, and a third in 10 f. off Light-house Cove. 



