GASTEROPODA. 323 



Strangford or Belfast, it has been procured in the adjacent Lough of 

 Larne. 

 Ardmore, Mrs. Mackesy. Bundoran, Mrs. Hancock. 



S. clathratula, Turt. 



As, in the table accompanying my report, this species appears to be as 

 •widely distributed as the last, it must be stated that it is generally a much 

 scarcer species. 



Ardmore, Mrs. Mackesy. Bundoran, Mrs. Hancock. 



S. Turtoni, Turt. 



Turton named this Scalaria after his daughter. He remarked, when 

 describing it, " In many parts of Ireland, but especially about Balbriggan, 

 they are found crawling among the rocks." Conch. Diet. p. 208. This 

 locality is on the Dublin coast, where the species has also been obtained 

 by Dr. R. Ball and Mr. Warren. It has been procured in a recent de- 

 posit of mud in Belfast Bay. At Newcastle, County Down, this recent 

 shell has been met with by Dr. Drurjjmond. 



Specimens from Dundalk Bay are in Mr. Hj-ndman's collection. At 

 Youghal it has been rarely found by Miss M. Ball. 



S. Trevehjana (W. T. in Ann. N. H., vol. v. p. 245). 

 Specimens of this shell were kindly presented to me in 1835 by Mr. 

 John D. Humphreys of Cork, as found on the coast of the County of that 

 name. Mr. Hyndman possesses a specimen from Magilligan. When I 

 noticed this species in the Annals, it had been merely named and not de- 

 scribed by Dr. Leach from specimens found on the coast of Northumber- 

 land. 



Family Cekithiad.e. 



Genus Cerithium. 

 C. Pennantii, mihi. 

 Of this shell there is a specimen from Youghal in Miss M. Ball's col- 

 lection, agreeing with the descriptions of Fleming and Brown, but only 

 tolerably represented in Pennant's British Zoology as Turbo tuherculatu, 

 and in Brown's Illustrations as C. fuscatum. Professor E. Forbes having 

 informed me that the Turbo tuberculata of Linn, is a different shell, and 

 that the Cerithium to which Costa applied the name of C. fuscatum is 

 likewise distinct, I have considered it necessary to bestow a new name on 

 the present species (Ann. N. H., vol. v. p. 12, 1840). 



a tuherculare (W. T., Ann. N. H., vol. v. p. 12). 



First noticed as from M. Malbay, common, from being included in 

 Professor Harvey's MS. Catalogue. 



Dredged in Clifden Bay, West coast, between 4 — 10 fathoms (bottom 

 Nullipara and sand), in July, 1840, by our party. From similar ground 

 in Bantry Bay I have obtained it. Sandy beach at Magilligan ; and in 

 stomach of Scaup duck shot in Belfast Bay. — W. T. 



Ardmore, Mrs. Mackesy. 



C. reticulatum, Brown. 

 Common in shell-sand on the beach of Belfast Bay, and dredged alive 

 and very fine from various depths, also sub-fossil ; a considerable consti- 

 tuent in the formation of the Kinegar, Holywood. In quantity in the 



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