GASTEROPODA. 119 
Shell small, elliptical, transversely striated, the strize numerous and punctated ; the spire 
conical, step-like; the whorls rather convex, the last inflated; the aperture is an elongated 
ellipse, narrow above and beneath. 
The Yorkshire specimen, placed at our disposal by Mr. Bean, is much compressed 
and imperfect, and has the spire somewhat less elevated than the followimg species, which 
resembles one figured by M. Deslongchamps from the Inferior Oolite of Les Moutiers, 
near Bayeux. The species has not been found in the middle or west of England. 
Longitudinal diameter 5 lines, transverse 3 lines. 
Locality. Great Oolite near Scarborough. 
Actmon puLius. Plate XV, fig. 11. 
? ToRNATELLA PULLA, Koch. 1837. Nordd. Oolith., p. 33, t. 2, fig. 11. 
2? — PULCHELLA, Deslongchamps. 1848. Mém. Soe. Linn. de Normandie, viii, 
pl. 18, figs. 4a, 4 6. (striis remotis.) 
A. Testa ovata, spird elatd, subacutd ; anfractibus (6) convexiusculis, striis transversis 
numerosis regularibus et punctatis ; anfractu ultimo subcylindrico ; aperturd ovata. 
Shell ovate, spire elevated, somewhat acute; whorls (6) convex, the last whorl sub- 
cylindrical; aperture ovate; the surface with numerous regular punctated encircling strie. 
As compared with 4. Sedgvici, of which it may prove to be only a variety, this is much 
more elongated, the length of the aperture but very slightly exceeding half of the entire 
length of the shell; the volutions are convex, and of moderate breadth; the base is 
rounded, but narrow. Length 33 lines, transverse diameter 2 lines. 
Locality. Great Oolite of Scarborough. It has not been found in the middle or west 
of England. 
Actmontna, D’ Orbigny. 
AcTHONINA GIcaNTEA, Des/. sp. Plate XV, fig. 13. 
TORNATELLA GIGANTEA, Deslongchamps. 1842. Mém. Soc. Lin. de Normandie, vol. vii, 
pl. 10, figs. 27, 28. 
Actronina Drestonccuampsil, D’Orb. 1850. Prod. Paléont., p. 299. 
A. Testd ovato-turritd, spird elatd, apice acuto ; anfractibus subplanis, superné rotun- 
datis ; apertura angusta, basi dilatatd ; columellé ad basin marginatda. 
Shell ovate, turreted ; spire elevated, acute; whorls rather flattened at their sides, but 
rounded above; aperture narrow above, dilated below ; columella marginated at its base. 
The specimen forwarded to us from Yorkshire is only a cast, but there is no doubt of 
