PROSOBRANCHIATA. 345 
Spec. Char. N. Testé minutd, ovato-oblongd, transversd ; spird brevi depressa ; 
supra convexd, subtus concavd ; anfractibus tribus, primis minimis, ultimo maximo, levigato, 
nitido ; apertura semilunari ; ared columellari latd, plandé aut subconcavd. 
Diameter, 3th of an inch. 
Localities. Britain: Charlton (S. Wood). 
France: Env. de Chalons (Deshayes). 
A small shell in my cabinet, figured as above, seems to correspond with the figure 
and description given by M. Melleville in some respects, but not quite so in others ; and 
I have in consequence put a mark of doubt to the name. It differs from the small and 
young specimens of glodulus (uniplicata, Sow.), a shell abundant in the Woolwich beds, 
in being more expanded or extended outwardly ; and there is a difference in the left lip 
or columella which is thicker and not so flat, and is destitute of a tooth on the upper 
part. It is less elevated in the spire than consodrina and more expanded than jaspidea. 
Unfortunately I have only met with the one specimen of this shell, which is figured. 
No. 267. Neritina sasprpEa ?, Deshayes. Tab. XXXIV, fig. 17 a—e. 
NerITINA JasPIDEA, Desh. An. sans Vert. du Bas. de Par., t. iii, p. 20, pl. Ixy, figs. 
14—16, 1858. 
Spec. Char. “WN. Testé ovato-oblongd, supra-convead, subtus concavd ; spird brevi, 
oblusissimd, submarginatd ; anfractibus tribus, primis minimis, ultimo maximo, levigato, 
nitido ; lineis fuscis irregularibus, undulatis, plus minusve numerosis ornato, aliquantisper 
zonolis angustiusculis interruptis ; aperturd obliquad, minimd, semilunarr ; ared columellari 
latd, pland vel concavd, declivi; margine columellari acuto, concavo, posterius unidentato.” 
—Deshayes. 
Diameter, +th of an inch. 
Localities. Britain: Dulwich (Meyer). 
France: Brimont, Chalons-sur-Vesus, Gueux (Deshayes). 
Some specimens beautifully marked have been obligingly sent to me for examination 
by Mr. C. Meyer, two of which with very varied markings I have had figured as above 
and referred them with doubt to jaspidea. Our specimens do not conform strictly to 
the one given and described under this name by M. Deshayes, but they differ greatly 
from the little shell which I have called WV. vieixa, which is much more expanded in its 
volutions, has a more extended aperture, and appears to be destitute of exterior orna- 
mentation, though, as before observed, this latter is not a reliable character. The 
specimens figured much resemble a recent Jamaica form, WV. pupa. The prominent 
tooth, shown by M. Deshayes, is indistinct in the British fossil. 
