170 Rev. R. Sheppard 07i Suffolk Land and Fresh-water Shells. 



The animal sometimes appears too big for its habitation, in 

 one instance greatly exceeding it ; and will occasionally cover it 

 pallio gelatinoso. Its upper part is of a light colour with black 

 head and horns ; under part light-coloured, bordered with black. 

 Air-valve, when closed, a black spot ; when open, surrounded 

 with a black ring. 



I have always considered this shell as the H. pellucida of 

 Pennant (to which Dr. Maton and Mr. Rackett have referred 

 H. nitens) ; and Drapamaud bears me out in that opinion, by 

 referring his Vitrina pellucida to the H. pellucida of Miiller. 



Wrabness Parsonage, Essex, 

 May 16, 1822. 



XII. 



