400 W. H. Hudleston—The Yorkshire Oolite. 
Shell conical, short, smooth, not umbilicated. Whorls about seven 
in number, increasing under a regular angle of 38°. The length 
restored would be about 46 mm., with a-body-whorl not quite equal 
in height to the entire spire. The whorls of the spire are convex, 
rather high and perfectly smooth. Body-whorl scarcely tumid, very 
round, and free from angularity at the base. Aperture widely oval. 
The front of the upper whorls is involved in matrix. 
Relations and Distribution.—These very average forms have near 
relatives in several of the Jurassic beds as low down as the Lias. 
Melania bulimoides, Desl., from the Coral Rag (Oxfordian according 
to D’Orbigny),’ of Trouville, is not very far from Fig. 4a, whilst 
there can be little doubt that Fig. 4b is the Corallian representative 
of the Ph. elegans of Minchinhampton. In the Great Oolite shell 
the whorls are more tumid, and the sutures more deeply cut, giving 
a slightly turrited appearance. Fig. 4b is a unique specimen ; 
should more be discovered, it might be almost worth describing as a 
species under the name of Pseudomelania sub-elegans. The other 
form is also comparatively rare. 
15.—PsrupomELanta, sp. Plate XIV. Fig. 5. 
As this is the only specimen known to me, it is not deemed 
advisable to give any specific name. 
Description. —Specimen from the Coral Rag of Brompton (my 
Collection). 
ihenophe (restored) ice ks lesasielaitereleaiieiaieisie eee 45 millimétres. 
Wad rs A Pate ae he ee Wil es 
Length of last whorl to entire shell .......... 40; 100. 
Spiralianeleyt ys oN Cele ean n si  ae fay 31°. 
Shell conical, slightly elongated, smooth, without ornament. The 
whoris would appear to increase regularly under an angle of about 
30°. They are convex, with a tendency to slope in the upper part of 
the whorl. This slope has the effect of accentuating the sutures, 
and gives a character to the shell, which might perhaps have been 
placed under Chemnitzia, if the generic distinction is worth pre- 
serving. ‘The aperture is very ovate, the outer lip coming out with 
a bold sweep; the anterior portion is slightly broken away. 
Columellar lip only moderately curved, and rather thin. No 
umbilicus, but a faint groove at the junction of the inner lip with 
the columella. 
16.—Psrupomenania Leymerter, D’Archiac, 1843. Dwarf. Plate 
XIV. Fig. 6 
Phasianella Leymeriei, D’ Archiac, 1843, Mém. Soc. Géol. Fr. tom. v. t. 28, fig. 12. 
———_—_—_——— Morris and Lyeett, Moll. of Gt. Ool. p. 74, pl. xii. ‘figs. 3l, 
31a, 32. 
Description.—Specimen from the Passage-beds of the Tee 
Calcareous Grit, Wydale (my Collection). 
Menorphy (restored) £5); jabs aisra avs oietel bajctanefeasenieees . 165 millimétres. 
Width ye fekal ensyniel acs vovcuaterenerareteeveleuc ioe tol enone Sconiarn 
Length of last whorl to entire shell .......... 63 : 100. 
Spiral angle 4) es eateries a eee ete 56°, 
1 op, cit. pl. xii. fig. 15. 
