2S JOURNAL OF CONCHOLOGY. 



DESCRIPTIONS OF SOME NEW VARIETIES OF 

 BRITISH LAND AND FRESHWATER SHELLS. 



By JOHN W. TAYLOR. 



[Read before the Conchological Society.] 



The following are a few variations of our land and fresh- 

 water shells that I have noticed at various times. It will I 

 think be of interest to record them and thus help in some 

 measure to illustrate the range of variation to which the different 

 species are subject. 



Limnsea auriculariavar. minor Moq. Shell smaller. Diam. 

 15 mill., alt. 17 mill. 



I found a specimen of this variety in the Warwick 

 and Birmingham Canal, near Acock's Green, Worces- 

 tershire, in the spring of 1866. 



Limnsea palustris van minor n. v. Shell smaller. Length 

 8 mill., diam. 4I mill. 



I have found a few of this minute form in a ditch 

 by the side of the Warwick canal, at Smallheath, near 

 Birmingham. 



Limnaea palustris var. lacunosa Ziegl. Shell with strong 

 regular and distant transverse striae and prominent 

 spiral ridges. 



I have found this variety in a drain at Leventhorpe 

 pastures, near Leeds (Mid-West Yorkshire). 



Zonites fulvus var. viridula n. v. Shell transparent green- 

 ish white. 



This beautiful variety has been collected near 

 Huddersfield by Mr. J. Whitwham, and is now in his 

 collection. 



J.C, iv., January, 18S3 



