MARINE MOLLUSCA OF DONEGAL AND DUBLIN* 183 



P. nebula, Montagu (Mangelia). — Dublin, with the last, and 

 at Howth, South Bull, &c, frequent. 



P. rufa, Mont. (Mangelia). — Dublin and Donegal, frequent. 



P. turricula, Mont. (Mangelia). — Dublin and Donegal, 

 frequent. 



Cyprcea europcea, Mont. — Dublin and Donegal, common. In 

 the latter county Innisbowen Head, Kinnegar (Lough Swilly), 

 Melmore, Mweelfinn, Doaghbeg (Lough Swilly), may be cited as 

 having good strands for cowries. 



Order Pleurobranchiata.' 



Cylichna acuminata, Bruguiere. — Portmarnock, very scarce. 



C. cylindracea, Pennant. — Dublin : Portmarnock and South 

 Bull, scarce. Donegal : Kinnegar strand, and Inch Island, 

 Lough Swilly. 



Utriculus truncatulus, Brug. — Portmarnock, opposite Baldoyle. 



U. obtusus, Mont. — Portmarnock, with the last. 



Acera bullata, Miiller. — Dublin : Baldoyle and Swords, muddy 

 coasts. Donegal : abundant on mud at Inch Island, opposite 

 Fahan Station, Lough Swilly. 



Action tornatilis, Linn. (Tornatella fasciata) . — Dublin : North 

 and South Bulls, Portmarnock and Howth. Donegal : Kinnegar 

 strand, near Rathmullan, but scarce. Derry : Magilligan. 



Scaphander lignarius, Linn. — Dublin, frequent. Donegal, 

 scarce ; Kinnegar, &c. 



Philine aperta,lAu.\i. — Dublin: 'Velvet strand,' Portmarnock. 

 Donegal : Kinnegar, Lough Swilly. 



Aplysia punctata, Cuvier. — Dublin : Howth. Donegal : 

 Doaghbeg, Fanet ; Marble Hill, Sheephaven. Living near low- 

 water ma,rk. 



Order Pulmonobranchiata. 



Melampus bidentatus, Mont. — Donegal: Mweelfinn, Sheep- 

 haven ; and var. alba. 



M, myosotis, Drap. (Conovulus denticulatus) , Var. ringens. — 

 Dublin : Howth, rocky places at ' The Cliffs,' south side of the 

 Hill. 



