34 
Banks’s, the figure is larger than ours, but does not look too 
large in comparison to it : mine is measured by the edge of 
the shell, and is therefore accurate; but for something of a 
deception, not readily accounted for, it looks smaller than 
the real shell. There are in Schroeter’s figure a few longi- 
tudinal stripes, which appear by the description to be too 
strong*. My kind friend, the Rev. Charles Sutton, A. M. 
of Norfolk, found it by the side of the lake in Kew Gardens 
which is now filled up. I have found smaller shells that 
nearly resemble, but I do not know of any pair like it as 
British. 
These stripes are common to most species of this gentis. 
