344 GASTEROPODA OF THE INFERIOR OOLITE. 
278. Neriropsis, cf. sutcosa, d’ Archiac, 1843. Plate XXVIII, fig. 4. 
1843. ?Nerira suncosa, d’Archiac. Meém. Soc. Géol. France, vol. v, pt. 2, p. 377, 
pl. xxviii, fig. 10. 
1851. Neriropsts sutcosa, d’Archiac. Morris and Lycett, Great Ool. Moll., 
pt. 1, p. 59, pl. xi, fig. 12. 
1884. = — = Cossmann, Et. Bath. (Mém. Soc. Geol. 
France), p. 159, pl. iii, figs. 16—17. 
Attention is called to a specimen from the Nerinza-bed in the Pea-grit of 
Crickley, which has considerable resemblance to this Bathonian species. The 
Inferior Oolite specimen is somewhat squeezed out of shape, but the ornamentation 
is similar to that of N. sulcosa. It might also be regarded as a modified form of 
the fine variety of Neritopsis Philea. 
279. « Neritopsis Lavicata.” Plate XXVIII, fig. 10. 
1885. Nerrropsis (? TurBo) b#vieaata, Phil., pars. Hudleston, Geot. Mag., 
dec. 3, vol. ii, p. 49, pl. ii, fig. 2. 
Non figs. 1, 3, 3a. 
Since the Dogger shell, represented in the accompanying plate, was originally 
figured, evidence has been obtained which renders it probable that this form should 
be separated entirely from Turbo levigatus, Phil. 
A very similar and possibly identical form occurs at Duston in the North- 
ampton Sand. These shells are transversely ovate, globose, and thick, averaging 
22 mm. in height and 26 mm. in width. The very small spire consists of from 
two to three smooth and rounded whorls, the whole shell suddenly expanding into 
an enormous body-whorl, the sutures being rather close. The posterior area of 
the body-whorl is subtabulate, the sides ventricose, and the ornaments consist of 
fine spiral striz decussated by growth-lines. Aperture large and semilunar ; 
character of the inner hip uncertain. 
It cannot be affirmed with certainty that this species really is a Neritopsis. The 
Duston shells seem related to a very large form of Natica or Ampullina, which occurs 
in the Lincolnshire Limestone, and which I have hitherto considered as being 
identical with Natica cincta (Leckhamptonensis). On the whole, ‘ Neritopsis 
levigata’’ cannot be regarded as an established species. 
