314 MOLLUSCA. 



Among coral-sand, at Bantry Bay, I procured it. It was dredged in 

 Clew Bay by our party in 1840. 



R. Harveyi, mihi. 



This species, two lines in length, is most nearly allied to the R. exca- 

 vata, Philippi (Enum. Moll. Sicil., p. 154, tab. 10, fig. G). This shell was 

 discovered at Miltown Malbay (County Clare) by Dr. W. H. Harvey, 

 some years ago, and characteristically named by him R. sculpta ; the term 

 insculpta, being applied to a species of the allied genus Odostomia, has in- 

 duced me, perhaps unnecessarily, to change the name. The species is 

 dedicated to its discoverer, who had successfully studied our native Mol- 

 lusca before his attention was directed to botany, in which department 

 his labours have now long been known and appreciated. Bundoran, Mr. 

 Warren. Two specimens of R. Harveiji, with one of which I was favoured, 

 were procured at Bantry Bay by Mr. Barlee in 1845, and he has like- 

 wise obtained it from Burrow Island, Devonshire. The Rev. Mr. Lands- 

 borough has met with it in a sub-fossil state on the coast of Ayrshire. 



R. ahyssicola, Forbes. 



Procured at the same depth and on the same ground as Bulla acuminata 

 off Mizen Head. 



R.parva, Turt. 



A very common species around the coast ; found living about the roots 

 of sea- weed, &c. ; abundant in shell-sand. At Brook, Isle of Wight, I 

 have obtained a singular elongated variety. 



R. costulata, Risso. Ann. N. H., vol. xv. p. 315 (1845). 



When looking over the collection of Mr. Alder in October last, he 

 pointed out a specimen of this shell, which had been given him by Dr. 

 Farran of Dublin, who procured it at Roundstone, on the Galway coast. 

 Mr. Barlee has favoured me with a specimen found by him in Birterbuy 

 Bay. The specimens described in the Annals were from Torbay, Devon- 

 shire. I obtained this species at Brook, Isle of Wight, in 1841. 



R. riifilahrum, Leach (sp.). Alder, in Ann. N. H., vol. xiii. p. 325. 

 Mr. Alder refers a Rissoa obtained at Portmarnock by Mr. Warren to 

 this species. I obtained this species at Bangor, Belfast Bay, in 1835. It 

 was sent me from Roundstone in 1840 by Mr. M'Calla, who obtained it 

 attached to the roots of sea-weeds growing between tide-marks. It was 

 dredged in Bantry Bay by Mr. M'Andi-ew. Ardmore, Mrs. Mackesy. 

 Beach at Portmarnock, Mr. Warren. 



R. reticulata, Turt. 



R. punctura has so frequently passed under the name of R. reticulata, 

 that I shall note only the one Irish locality whence specimens are in my 

 cabinet, viz. Bantry Bay. In 1834 I obtained it there among coral-sand, 

 and Mr. Barlee has subsequently supplied me with specimens from the 

 same locality ; also from Oban, west of Scotland. The Rev. D. Tiands- 

 borough has added specimens from Arran, Frith of Clyde, to my collec- 

 tion. This shell has had the name of R. Beanii bestowed upon it of late 

 years. Under that name and R. calathisca it has been sent to me from 

 Scotland and England. Of the true R. calathisca I have not seen an Irish 

 specimen. 



