54 
LIMNEA pyramidalis. 
TAB. DXXVIII. —fig. 3. 
Spec. Char. Ovate-acute ; whorls convex ; aper- 
ture half as long as the shelly dilated ; columella 
plait (or callus) obscurely divided. 
Syn. Lymnsea pyramidalis. Brard, Ann. du Mus. 
tom. 15. pi. 24./. 1 8$ 2. Desliayes, tom. 2, 95. 
pi. 10./. 14$ 15. 
A degree of symmetrical elegance in the form of this 
species is perceived at first sight : it arises from the 
slight convexity of the whorls, the pyramidal form of 
the spire, and the proportions of its parts. The plait, 
or rather callus, upon the columella has a shallow furrow 
in the middle, but it is not very conspicuous. 
Occurs at Headon Hill in the Isle of Wight. Our 
specimens agree well with Mons. Deshayes’s figures, 
but are shorter than Brard’s. We trust Deshayes was 
acquainted with Brard’s shell, as we follow his autho- 
rity. 
