Mr. W. Thompson on the Fauna of Ireland. 13 



" Anomia punctata. Youghal." R. Ball, Esq. 



" Hyalea trespinosa, Griff. Cuvier, Moll. pi. 3. f. 7." An individual 

 of this species and the first Pteropode I believe that has occurred 

 on the British shores, was found by Mr. R. Ball on the coast near 

 Youghal some years ago. At the same time Spirulce and Ian- 

 thina occurred, but none of them in a living state. 



" Arcafusca. Coast of Galway." R. Ball, Esq., who considers its 

 rank as a species doubtful. 



Nucula tenuis. Found at Portmarnock by T. W. Warren, Esq. 



nitida, Sowerby. Coast of Dublin. 



Pinna fragilis, ~\ Turt. Bivalves. The three first named noted by 



papyracea, ( Mr. John Humphreys as found at Cove ; the two 



pectinata, first and P. muricata by Mr. R. Ball as obtained 



■ muricata, J from the same locality. As species they are 



looked upon with much doubt. 



Cardium nodosum*, Mont. North and east coasts. This shell is 

 noticed by Mr. Smith as found in the newer pliocene deposits 

 in Ireland. ' Wern. Mem.' vol. viii. part 1. 



Anodon intermedius, Lam. I have found this in the rejectamenta of 

 the river Lagan near Belfast. 



cellensis, Pfeif. River Shannon and Grand Canal. The An. 



anatinus and An. cygneus have been recorded as Irish. Although 

 enumerating these, I am not disposed to take the views of au- 

 thors who make so many species in this genus. 



" Amphidesma distortum. Youghal." R. Ball, Esq. 



" Donax complanata. Bantry Bay, rare." Mr. J. Humphreys. 



" Tellina similis. Dublin." R. Ball. 



" bimaculata. Bantry." R. Ball. This species is given 



doubtfully as Irish in Mr. O'Kelly's catalogue. 



Tellimya ovata, Brown's ' Illust. Brit. Conch.' pi. 14. f. 20, 21. Spe- 

 cimens of this shell from the southern coast are in Mr. Hynd- 

 man's cabinet. 



Myrtea spinifera, Turt. Bantry Bay. Miss M. Ball. Marked with 

 doubt by Mr. O'Kelly as a Portmarnock shell. It has been in- 

 dicated as an Irish species by Mr. Jeffreys when noticing the 

 mollusca he obtained at Oban in Argyleshire : he remarks that 



* Mytilus edulis, Linn. The variety ? M. subsaxatilis, Williamson, 'Mag. 

 Nat. Hist.' vii. 353. has been found at Youghal by Miss M. Ball. The var. 

 M. incurvatus monopolizes, almost to the exclusion of the other forms of this 

 species, the shores of Ireland that are exposed to the swell of the ocean. 



Venus virginea, Linn. The var. V. Sarniensis, Turt. dredged on the Dub- 

 lin coast by Dr. Lloyd of Malahide. 



