Clare Island Survey — Marine Mollusca. 22 17 



Turritella communis Eisso. (T.terebra.) W.M.E. Common on oozy bottoms 

 in the shallow waters along the eastern shores of the bay ; rare in the 

 west. Dredged 14 times, 2-20 f., one haul in 4f. off Inishgowla giving 

 as many as 118 shells. Found living in hundreds at low water on a 

 Zostera bed off Annagh Island in May, 1910, many specimens fully 

 50 mm. in length ; one living example dredged in 20 f. in the bay. 

 Caecum trachea (Montagu). W. M. E. Very frequent : dredged 6 times, 

 4-19 f., a total of 123 shells, of which 64 were taken in a single haul in 

 10 f. off Light-house Cove. 

 C. glabrum (Montagu). W. M. E. Very frequent : dredged 7 times, 2-19 f., 

 a total of 180 shells, r.he greatest number in any one haul being 102 

 taken in 19 f. in mid-bay. The largest shell was slightly over 2 mm. 

 long. 

 Chenopus pes-pelecani (Linne). (Aporrhais.) M. Apparently rare : a few 



shells taken in 4 dredgings, 7-16 f. ; living in 7 f. 

 Trivia europaea (Montagu). (C'ypraea.) W. M. E. Occasional, living, at 

 low-water mark on E. and S. shores of island, and frequent at Annagh 

 Island ; occasional in 6 dredgings, 2-19 f. 

 Erato laevis (Donovan). (Marginella.) W. Bare : 4 juvenile shells dredged 



in 10 f. off Light-house Cove. 

 Eulima subulata (Donovan). M. Frequent : taken in 8 dredgings, 6-20 i., 

 a total of 45 specimens ; living at 6 f ., 10 f., and 14 f. One haul off 

 Mulranny in from 5|-11 f. yielded 22 specimens. 

 E. bilineata Alder. W. M. Bare : 3 shells dredged, one in 5f. off the Castle, 



another in 10 f. off Light-house Cove, and a third in mid-bay in 19 f. 

 E. polita (Linne). W. M. Frequent : dredged 6 times, 5-19 f., a total of 

 3 living specimens, 30 perfect, and 84 broken shells. Living in one haul 

 in from 5 J- 11 f. 

 E. incurva (Benier). (E. distorta.) W. M. E. Eather rare: taken in 



5 hauls, 5-19 f., a total of 15 shells. Living in 19 f. 

 Jordaniella nivosa (Montagu). (Odostomia.) M. Bare : 3 fresh shells dredged 



in 14 f. 2 miles K E. of Old Head, 1910. 

 Odostomia unidentata (Montagu). W. M. E. Eather rare : 6 shells in 10 f. off 

 Light-house Cove, 7 in 11 f. and 1 in 19 f. in the bay, and 2 in 4 f . off 

 Inishlyre. 

 0. plicata (Montagu). W. E. Bare: 3 shells iu 10 i. off Light-house Cove, 



and 2 shells at low-water mark, Dorinish. 

 0. acuta Jeffreys. W. M. E. Bare : dredged 3 times : 1 shell in 10 f. off 

 Light-house Cove, another in 19 f. in the bay, and 4 others in 5 f., 

 Inishlyre. 



K.I. A. PROC, VOL. XXXI. C 22 



