of the Land and Fresh-water Shells of Suffolk. 169 
67. Herix turea. Trans. Linn. Soc. vol. viii. p. 222. 
A specimen was found some years since on the banks of 
the River Gipping at Sproughton, by my venerable friend the 
Rev. James Lambert, of 'Trinity College, and formerly Greek 
Professor in the University of Cambridge. "This circumstance, 
combined with my having taken abundance of them at Win- 
thorpe, on the banks of the River Trent, Notts. (after a flood) at 
least thirty miles above its junction with the salt water, proves 
H. lutea to be a fresh-water shell. Those found therefore by 
Montagu ad littora maris must have been carried down to the sea 
by some fresh-water stream, and afterwards thrown on the shore. 
I have never taken it in a living state. It probably inhabits the 
depths of rivers. iei. 
68. HELIX PELLUCIDA. Penn. Brit. Zool. vol. iv. no. 134. 
Inhabits the Parsonage garden at Offton, and the grove in 
which H. Somershamiensis is found ; plentiful also at the roots of 
grass in the marsh within the Sea-wall at Shotley. 
In abundance in moss and under pieces of wood in Little 
Stour wood, my garden and lawn, Wrabness, Essex. 
This is the Vitrina pellucida of Draparnaud ; a very distinct 
species, but bearing some resemblance to the young of H.nemo- 
ralis and H. hortensis. 
This shell varies as to the colour of its suture ; in some it is 
whitish and more wrinkled than in others ; in some it is brown ; 
whilst in others the brown, in particular lights, appears to be 
gilded. i 
The green colour of the shell is also of various hues; and 
young specimens are whitish, and have only two, or scarcely two, 
volutions; so that I think it is manifest that Draparnaud has 
multiplied one species into three. 
VOL. XIV. Z The 
