PULMONATA. 87 
one; M. Deshayes, in fact, (‘Descr. des Coq. Foss.,’ &c. vol. ii, p. 92,) has suggested 
that it may be merely a variety of Z. dongiscata. The Hordwell shells, like the 
French, are shorter, and the whorls are more convex; but they present the charac- 
teristic fold of the present species, of which I consider them to be, therefore, only 
a variety. 
Size-—Axis, 2 inches; diameter, 8-10ths of an inch. 
Localities —Hordwell; Headon Hill; Sconce. French: Belleville; Saint-Ouen ; 
Fontainebleau; Rochechouart; Veaurs, and Vergnols, near Aurillac; Dax. 
No. 33. Limnza sutcata. F. &. Hdwards. Tab. XIV, fig. 4a—d. 
L. testé ovatd ; anfractibus quinque vel sex, convexiusculis, substriatis ; spird mediocre, 
acutd ; apertura ovatd, spiram in longitudinem superanti ; margine eaterno parum obliquo ; 
plicd columellari compressa, vie eminenti, profunde sulcata. 
An ovate shell, composed of five or six slightly convex whorls on which the 
lines of growth are very conspicuous, imparting a sub-striated appearance to the 
surface; the spire moderately elevated and pointed. The aperture is ovate, and 
rather longer than the spire; the outer lip but slightly oblique, and the columellar 
fold compressed, not very prominent, and more deeply sulcated than in any other 
species. 
In general appearance this species resembles L. arenularia; but it may be distin- 
guished by the flat and deeply sulcated fold. 
Size-—Axis, rather more than | inch; diameter $ an inch. 
Localities —Hordwell; Headon Hill. 
No. 34. Limnmza GipposuLa. Lf. 2. Hdwards. Tab. XIV, fig. 8—e. 
L. testé ovatd, sub-turritd ; spird brevi, sub-acutd ; anfractibus sex, gibbosulis, ultimo 
magno, suturis profundis: aperturd acuto-semi-ovali, amplda, basi effusd, bessem totius teste 
in longitudinem superanti; labro reflexo ; plicd columellari parva, parum tortuosd, sub- 
compressa, obscuré sulcatd. 
An ovate sub-turreted shell, with a moderately elevated and rather obtuse spire : 
volutions six, somewhat gibbous, separated by a deep suture, and, in some specimens, 
flattened round the upper margin; the last volution is proportionally large. The 
aperture is semi-oval, dilated in front, acute behind, and exceeds in length two thirds 
of the whole shell; the inner lip is reflected; the columellar fold small, somewhat 
compressed, not much twisted, and obscurely sulcated. 
This species resembles ZL. swé/ata more than any other; but the shell is larger, 
the spire not so much elevated, the volutions more equally gibbous, the aperture 
much longer and more effuse at the base, the fold not so much twisted and the outer 
