GASTEROPODA. 119 



Shell small, elliptical, transversely striated, the striae 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 following 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. 



ACTION PULLUS. Plate XV, fig. 11. 



? TORNATELLA PCLLA, Koch. 1837. Nordd. Oolith., p. 33, t. 2, fig. 11. 

 ?? PULCHELLA, Deslongchamps. 1848. Mem. Soc. Linn, de Normandie, viii, 



pi. 18, figs. 4a, 4 b. (striis remotis.) 



A. Testa ovatd, spird elatd, subacwtd; anfractibus (6) convexiusculis, striis transversis 

 numerosis regularibus et punctatis ; anfractu ultimo subcylindrico ; aperturd ovatd. 



Shell ovate, spire elevated, somewhat acute ; whorls (6) convex, the last whorl sub- 

 cylindrical ; aperture ovate ; the surface with numerous regular punctated encircling striae'. 



As compared with A. 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 3^ lines, transverse diameter 2 lines. 



Locality. Great Oolite of Scarborough. It has not been found in the middle or west 

 of England. 



ACT.EONINA, IfOrbigny. 



ACT/EOMNA GIGANTEA, Desl. Sp. Plate XV, fig. 13. 



TORNATELLA GIGANTEA, Deslongchampg. 1842. Me"m. Soc. Lin. de Normandie, vol. vii, 



pi. 10, figs. 27, 28. 

 ACTEONINA DESLONGCHAMPSII, D'Orb. 1850. Prod. Parent., p. 299. 



A. Testa ovato-turritd, spird elatd, apice acuto ; anfractibus subplanis, superne rotun- 

 datis; aperturd angustd, basi dilatatd ; columelld ad basin marginatd. 



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 



