22 32 Proceedings of the Royal Irish Academy. 



Cardium echinatum Linne. M. E. Not infrequent : a total of 20 valves 

 taken in 4 hauls, 10-19 f., and a few others gathered on the beaches at 

 Annagh Island and Mulranny. 



C. exignum Gmelin. E. A characteristic species of the inner muddy shores 

 and channels, living specimens and valves being frequent in 2f. off 

 Scotch Bonnet, in 4 f. off Inishgowla, and in 2-5 f. off Inishlyre. Valves 

 frequent on the shores near Old Head, at Belclare, at Annagh Island, and 

 at Dorinish, living specimens occurring also at low water in the two last- 

 mentioned stations. The largest valve taken measured 26 mm x 13 mm. 

 Dredged in Clew Bay, weedy ground, in from 3 to 10 fathoms: Forbes, '53. 



C. fasciatum Montagu. W. M. Frequent: dredged 7 times, 5-19 f., living 

 in 5 f., 10 f., and 19 f. Valves were taken in large numbers at 10 f. and 

 at 14 f. 



C. nodosum Turton. V*. M. E. Bather common : taken in 11 haids, 2-19 f., 

 a total of 21 living specimens and 150 valves. Living at 2 f., 4 i., 5 f., and 

 10 f. Common among weed in from 3 to 10 f., Clew Bay : Forbes, '53. 



C. edule Linne. W. M. E. Bather rare ? Valves occasional on the shore 

 at Bortarriv, Clare Island, and not infrequent on the mainland shores at 

 Old Head, Belclare, Annagh Island, Mulranny, and Civrraun AchilL 

 Valves occasional in dredgings in from 2-5 f. 



C. norvegicum Spengler. W. M. E. Frequent : dredged 6 times, 4-19 f.. a 

 total of 3 living specimens and 11 valves. Living at 4f., 7 f., and 15 f. 

 Two valves dredged in 19 f. measured 63 mm. in length and breadth. 



Psammobia ferroensis Chemnitz. M. Valves frequent in the bay in 6 

 hauls, 7-19 f., and occasional on the beach at Annagh Island. 



P. tellinella Lamarck. W M. Frequent : dredged 7 times, 5-21 f„ a total 

 of 3 living specimens, 3 paired and 20 single valves. Living off Clare 

 Island in 5 f . and in 10 f. 



P. vespertina (Chemnitz). E. Bare : a pah of valves in 5 f., Inishlyre 

 Boads, 2 valves in 2 f. off Scotch Bonnet, and 1 valve on the beach at 

 Annagh Island. 



Mya arenaria Linne. E. Local : valves, only, on the muddy shore at Annagh 

 Island. 



M. truncata Linne. M. E. Bather rare : valves occasional on the beaches 

 at Belclare, Annagh Island, and Curraun AchilL 



Corbula gibba (Olivi). W. M. E. Very common : taken in 17 hauls, 2-20 f., 

 the valves in profusion in many hauls, and living specimens occurring 

 at 2 t, 8 f., 11 f., 14 f., 16 t, and 19 f. 



Lutraria elliptica Lamarck. TV. M. E. Not infrequent : valves in 5 hauls, 

 2-19 f. 



