250 JOURNAL OF CONCHOLOGY. 



I see all Mr. Hey's aquatic species have been taken from canals, 

 ponds, or brooks. This poverty of moUuscan life may be owing 

 to the scanty weed supply, the swiftness of the currents, and the 

 coldness of the water due to the melted snow from the hills. 



If what I have said deals rather with negative results, let it 

 be remembered that something may be learnt even so. The 

 tabulation of the products of such districts, marked off accord- 

 ing to geological formation, will show the young collector what 

 to expect in similar localities, and lead to the more extensive 

 generalisations which are the ends of every science. 



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Dredging off Connemara. — Mr. B. Sturges Dodd has 

 submitted to me the results of a short dredging cruise he made 

 last August, in company with Mr. Mellors, in Birterbuy and 

 Roundstone Bays, on the west coast of Ireland, in about ten 

 fathoms ; and some of them, on account of their rarity and 

 their not being hitherto recorded from the district, are worth 

 publishing. These are Lepton darkice, fine specimens and not 

 uncommon. Jeffreys gives the depth of this species as from 

 eighteen to twenty fathoms, but I have found it living at low 

 water in several places, and downwards to thirty fathoms. Also 

 Rissoa proxima, Aclis gulsonce, Odostomia miniina, O. clavula, 

 O. lukisi, O. diaphann, and O. clathrata. Two specimens only 

 of the latter were obtained in Birterbuy Bay, on the same 

 ground whence Dr. Jeffreys recorded his two original speci- 

 mens. All being well, Mr. Dodd intends visiting the district 

 again next August for further dredging. — J. T. Marshall. 



Tenby Shells. — By an oversight I find the names of two 

 species were omitted from the list published in the number for 

 July, 1889, viz: — Utricuhis iruncatulus, one specimen only; 

 and Rissoa costata. They were found among broken shells 

 and sand. — J. W. Cundall, October 30th, i88g. 



J.C., vi., July, 1890. 



