96 EOCENE MOLLUSCA. 
No. 48. LimnzA MINIMA. Sowerby. Tab. XIV, fig. 9 a—c. 
LymN#A MINIMA. Sow. 1817. Min. Con. vol. ii, p. 156, t. 169, fig. 1. 
L. testé minimd, ovato-elongatd, levi; anfractibus quinque aut sex, convexiusculis : 
apertura ovali, spiram in longitudinem vie aquanti ; margine columellari reflexo ; plicd sub- 
recta, rotundatd, parum eminentt. 
It is not unlikely that this, as Mr. Sowerby has suggested, may be the young shell 
of some species already described, probably of LZ. arenularia, to which, in its regularly 
taper spire and rounded fold, it presents a close approximation. It is a very small, 
smooth, elongated, ovate shell, with five or six rather convex volutions, separated by a 
moderately deep suture : the aperture is ovate, and rather less than half the length of the 
entire shell; the inner lip is strongly reflected, and the fold is round, nearly straight, 
and very little prominent. 
The figures are taken from the original specimen described by Mr. Sowerby in 
‘Mineral Conchology.’ 
Size.—Axis, 3-10ths of an inch nearly; diameter, 2-10ths nearly. 
Locality Headon Hill. 
No. 49. Limnza REcTA. Ff. LH. Edwards. Tab. XIV, fig. 7 a—4é. 
L. testé ovato-ventricosd, sub-turritd ; spird mediocri, apice acuto; anfractibus sex 
aut septem, convexis: apertura ovali, ampld, anticé dilatatd, longiori quam spira; margine 
columellari sub-reflexo ; plicd parvd, viz tortuosd, parum eminenti. 
The convexity of the whorls, the pointed spire, and the nearly straight rounded 
fold, distinguish this from every other fossil species. It is a short ovate shell, with a 
moderately elevated spire, and an acute apex; volutions six or seven, very convex, the 
last one rather ventricose: the aperture large, of a roundedly ovate form, effuse in 
front, and longer than the spire; the inner lip slightly reflected, and the small rounded 
fold nearly straight, and scarcely impinging upon the aperture. 
This shell much resembles ZL. ovwm (Brogn.); but the volutions are fewer and more 
ventricose, and the aperture is more effuse. It does not appear to me to be referable 
to any other species; and I have therefore, although reluctantly, described it as a 
distinct species. 
Stze.—Axis, 1 inch and 1-10th; diameter, 5-10ths of an inch. 
Locality.—Headon Hill. 
