54 THE Z00L0GI8T, 



of the Harbour. This species must have a southern tendency, as 

 I could never find a fragment of it on any Donegal shore. 



Nucula nucleus, Linn. — Donegal and elsewhere, common. 



N. nitida, G. B. Sowerby. — Dublin, frequent at Portmarnock, 

 where I have taken it alive at the lowest tides. 



Pectunculus glycymeris, Linn. — Derry and Donegal ; coasts of 

 Lough Foyle, old valves ; Galway Bay. 



Area tetragona, Poli. — Derry, Magilligan, old valves (Miss 

 Galway). 



Lasea (Kellia) rubra, Montagu. — Donegal : Mweelfinn, Sheep- 

 haven, Dunfanaghy, Carrablagh, Lough Swilly. 



Lucina borealis, Linn.— Donegal: Kinnegar and McCamish, 

 near Kathmullan on Lough Swilly. Derry : Macgilligan. Dublin 

 Bay, frequent ; I have taken it alive on the South Bull after a 

 storm ; also on Ventry Strand in Kerry. 



Axinus fiexuosus, Montagu. — Dublin and Donegal coasts, 

 frequent. 



Diplodonta rotundata, Brown. — I have received specimens 

 from Galway Bay. 



Cardium echinatum, Linn. — Abundant on the Dublin shores, 

 and often found alive on the South Bull and Portmarnock after a 

 storm. Not uncommon on Lough Swilly, but rarely cast up alive. 



C. exiguum, Linn. — Dublin : I have gathered a single dead 

 specimen at Portmarnock. Donegal, rare ; dead valves were found 

 very sparingly by me at a little bay, Mweelfinn, near Breaghy 

 Head, Sheephaven. 



C.fasciatum, Montagu.— Not unfrequent on the shores of 

 Donegal and Dublin; more so on the latter. 



C. edule, Linn. — Common on all sandy coasts at low water. 



C. norvegicum, Spengler. — Dublin, frequent; live specimens 

 cast up after storms at Portmarnock. Donegal, occasionally on 

 most shores, as near Buncrana and in Donegal Bay. 



Isocardia cor, Linn. — I have received fine specimens of this 

 shell from the Dublin Bay trawlers in the live state. They were 

 chiefly taken off Dunmore, Co. Waterford; but one of the largest 

 specimens existing perhaps was taken with others off Carlingford. 

 Subsequently, on board one of the trawlers, we picked up dead 

 valves off Carlingford, Co. Down. 



Cyprina islandica, Linn. — Dublin, very abundant, and often 

 occurring alive on various shores after a gale. Donegal, rare ; 



