MARINE MOLLUSCA OF DONEGAL AND DUBLIN. 105 



£2520 per ton would be a fair average, and at this price the total 

 product of the Whaling voyage would be about £26,000. 



I have, as on previous occasions, to express my thanks to 

 Capt. D. Gray and his son, Mr. R. Gray, of Peterhead, and Mr. 

 D. Bruce and Mr. Kennis, of Dundee, for their kindness in 

 supplying me with information ; also to Mr. Walter Thorburn, of 

 Greenock. 



NOTES ON MARINE MOLLUSCA COLLECTED ON THE 

 COASTS OF DONEGAL AND DUBLIN. 



By H. Chichester Hart, F.L.S. 



(Continued from page 56.) 



Psam?nobia tcllinella, Lam. — Derry. Miss Honoria Galway 

 presented me with a fresh specimen which she had taken at 

 Magilligan. 



P.ferroensis, Chemnitz. — Dublin and Donegal, common. 



P. vsspertina, Chemnitz. — Donegal: I have gathered two spe- 

 cimens (one fresh) on the White strand between Buncrana and 

 Fahan. Near Galway, beyond Salthill, this species is not 

 unfrequent. 



Donax vittatus, Da Costa (D. anatinus). — Dublin and Donegal, 

 common. One of the few species which comes ashore unbroken 

 on a thoroughly exposed, oceanic, sandy coast. 



Mactra solida, Linn. — Dublin and Donegal, common. This 

 appears to be remarkably plentiful on the shores of Inch Island, 

 Lough Swilly. 



M. subtruncata, Da Costa. — Donegal : Kinnegar and Inch 

 Island, Lough Swilly, not uncommon. 



M. stultorum, Linn. — Dublin : very common. Donegal: locally 

 abundant, as on Tramore strand, west of Horn Head, with Lutraria 

 elliptica, and elsewhere. 



Lutraria elliptica, Lam. — Dublin and Donegal, common. 



Scrobicularia prismatica, Montagu (Syndosmya). — Dublin : 

 South Bull and Portrane, sparingly. 



? S. nitida, Mull. — Dublin, near Baldoyle. I am not sure of 

 the specimens. 



S. alba, Wood. — Donegal : Inch Island, Lough Swilly. 



S. tenuis, Montagu. — Donegal : Fahan and Inch Island, rare. 



