GASTEROPODA. 297 



application of the same name, too, by British and continental authors, to 

 different species, adds mvich to the confusion. Ireland possesses all the 

 British species as distinguished by Mr. Alder, viz. //. ceUaria, H. nitidula, 

 H. lucida, H. excavata, II. alliaria., H. radiatula, II. 'pura, II. crijstalUiui. 

 Rossmassler's H. nitens, f 524 and 525, are very characteristic represent- 

 ations of shells I possess from different parts of Ireland, and with his //. 

 glabra, f. 528, so far as a iigure and diagnostic description will suffice for 

 judgment, I have s^^ecimens identical. 



Genus SucciNEA. 

 S. jmtris, Flem., 



Is generally distributed throughout Ireland. Specimens agreeing with 

 the var. j8 of Draparnaud — " major solidior, colore carneo" — in form (see 

 pi. 3, f. 23), colour, and more than ordinary thickness, though not in 

 being larger than usual, are occasionally met with. The varieties y (" me- 

 dia magis elongata et colorata ") and S (" minor, apertura ovata ") are 

 found in the North. Individuals of this species, which adhere to stones 

 in wet spots at a considerable elevation in the northern mountains, are, as 

 may be expected, invariably much dwarfed in size. 



S. Pfeijferi, Rossm. 



Although less common than the last, this species or variety is widely 

 diffused over the island. In the North it is not uncommon, and is here 

 generally of the same amber colour as S. amphibia ; as likewise are Eng- 

 lish specimens, which I owe to the kindness of Mr. Alder ; specimens 

 of a reddish horn-colour, and much thicker than usual, have occasionally 

 occurred to me in the North, and in quantity they have been obtained by 

 Mrs. Patterson, of Belfast, near Portarlington. ^Nlr. Humphreys notices 

 this shell under the name of S. oUonga, Turt., as found about Cork, and 

 by this appellation Dr. Harvey mentions Ballitore (County Kildare) and 

 Limerick as habitats, adding at the same time — " animal darker than in 

 the last \_S. amphibia], and found in far wetter places." From Finnoe 

 (County Tipperary) I have been favoured by Mr. E. Waller with typical 

 specimens of this Succinea, as admirably represented in Gray's ^lanual 

 (f. 74). 



8. oblonga, Drap. 



Bishop's Crook, Cork, INIessrs. Wright and Carroll. Baltimore, Co. Cork, 

 Mr. M'Andrew. 



Gemis BuLlMUS. 

 B. obscurus, Di'aj). 



This species is very local. In his Irish Testacea Capt. Brown notices 

 " one specimen [procured] on a dry mud wall near Clonooney," ]). 529. 

 About the roots of trees in the demesne of Woodlands, near Dublin, I 

 have, accompanied by Dr. R. Ball, obtained specimens, the shells of 

 all of which, adult as well as immature, were like those sent me from 

 other localities, and, according to the observations of authors, covered 

 with earth. From La Bergerie, Portarlington, I have been favoured with 

 specimens by the Rev. B. J. Clarke. In March, 1837, it was supplied me 

 in quantity from Larne, County Antrim, by Mr. James Manks. From 

 the Falls of Clyde (Scotland), I have specimens collected by Dr. W. 

 H. Harvey. 



Aniinal, rather dark grey above, lighter towards the disk, and when 



