MATtlNE MOLLUSC A OF DONEGAL AND DUBLIN. 139 



NOTES ON MARINE MOLLUSCA COLLECTED ON THE 

 COASTS OF DONEGAL AND DUBLIN. 



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



(Continued from page 56.) 



Order Pectinibbanchiata. 



Patella valgata, Linn. — Dublin and Donegal, common. Var. 

 depressa, Melmore, Mulroy, Donegal; Howth, Dublin. 



Helcion pellucidum, Linn. (Patella). — Dublin and Donegal, 

 frequent. Var. Icevis, Howth and Portrane, Dublin. 



Tectum testitudinalis, Mull. (Acmcea). — Dublin: Ware Hole, 

 Howth. Donegal : Mweelfinn, Sheephaven, rare. 



T. virginea, Mull. {Acmcea). — Dublin: Howth, Ware Hole. 

 Donegal : Mweelfinn, Sheephaven ; alive at Drimnacraig, Fanet. 



Emarginula fissura, Linn. — Dublin: Portrane, Portmarnock, 

 and Howth. Donegal : Mweelfinn, Sheephaven ; McCamish and 

 Drimnacraig, Lough Swilly. 



Fissurella grceca, Linn. — Dublin: Howth and Portmarnock, 

 rather scarce. Donegal : McCanish, Melmore, Mweelfinn, Dun- 

 fanaghy, and Kinnegar ; more frequent in the northern county. 

 Derry : Magilligan. 



Capulus hungaricus, Linn. (Pileopsis). — Dublin: fresh speci- 

 mens at the Velvet strand, Portmarnock, but scarce. Down : 

 large living specimens trawled at Carlingford. Derry : Magilligan 

 (Miss H. Galway). 



Cyclostoma serpuloides, Montagu (Skenea). — Dublin: Kosh, 

 Howth. 



Trochus magus, Linn. — Dublin : Portmarnock and South Bull, 

 but rare. Donegal : Inch, Lough Swilly ; Melmore, Mulroy. 



T. tumidus, Montagu. — Dublin : Portmarnock and South Bull, 

 rare on the strands. 



T. cinerarius, Linn. — Dublin and Donegal, common. 



T. umbilicatus, Montagu.— Dublin and Donegal, common. 



T. duminyi, Requien. — Donegal : Bundoran. I have not 

 gathered this, and I mention it because, in speaking of Donegal 

 shells, it seems wrong to omit a species which has no other 

 British habitat. 



T. montacuti, W.Wood. — Dublin: Portmarnock, a single 

 specimen. 



