170 Rev.R.SuEPPARD on 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 Draparnaud bears me out in that opinion, by 
referring his Vitrina pellucida to the H. pellucida of Müller. 
Wrabness Parsonage, Essex, 
May 16, 1822. 
XII. 
