GASTEROPODA. 97 



straight and obtuse ; aperture subovate, acuminated at the upper part, with an inner 

 lip slightly reflected. 



Axis, f of an inch. 



Locality. Cor. Crag, Sutton. 



Red Crag, Walton Naze. Recent, British Seas and Mediterranean. 



I have half a dozen well-preserved specimens, which present characters sufficient 

 to justify this being considered identical with the recent British species. Montague 

 says, the volutions are quite flat ; but in my specimens they are slightly convex in 

 the recent as well as in the fossil shell, with a rather obtuse apex ; outer lip not quite 

 straight, projecting a little at the lower part, with sometimes an inflection in the spire 

 (vide fig. 1 b}. Two of my specimens have five or six of the upper volutions broken off, 

 and the opening closed in a manner similar to that of Bulimus decollatus. 



2. EULIMA SUBULATA. Mont. Tab. XIX, fig. 3. 



HELIX SUBULATA. Mont. Test. Brit. Sup. p. 142, 1808. 



TUIIBO SUBULATA. Don. Brit. Shells, t. 172, 1803. 



HELIX SUBULATA. Broc. Conch, foss. Subapenn. pi. 3, fig. 5, 1814. 



MELANIA CAMBESSEDESII. Payr. Cat. des Moll. p. 107, pi. 5, fig. 11-12. 



Phil. En. Moll. Sic. torn, i, p. 157, 1836. 

 EULIMA LINEATA. Sow. Conch. Illust. fig. 13, 1838. 

 MELANIA NITIDA. Grateloup. Bord. Foss. p. 8, pi. 5, fig. 5, 1838. 

 EULIMA SUBULATA. Dujardin. M^m. Soc. Geol. de France, t. 11, 1837. 

 S. Wood. Catalogue 1842. 



Eu. Testa elongatd, angustd, subulatd, acuminatd, politd, nitidissimd ; anfractibus 

 planatis, contir/ms ; aperturd elongato-ovatd, superne acuminatd ; labro simplici recto. 



Shell elongate, tapering, smooth, and glossy, with an acuminated apex ; whorls 

 flat, contiguous ; suture scarcely defined ; aperture elongato-ovate, acuminated at the 

 upper part ; outer lip straight ; inner lip slightly reflected. 



Axis, of an inch. 



Locality. Cor. Crag, Sutton and Ramsholt. Recent, British Seas. 



Small and mutilated specimens are by no means rare, and the above dimensions 

 are those of my largest and most perfect ones. There is no character I can detect, 

 but that of size, in which it differs from the recent species, and mine are, in all proba- 

 bility, only young individuals. My specimens do not possess more than eight volutions ; 

 recent individuals of the same length have about an equal number. The apex in this 

 species is sharper than in the preceding one. A species very much resembling this 

 shell, from the London clay, at Barton, is in the cabinet of Mr. Edwards. It is rather 

 more cylindrical and is less in size, with a more visible suture ; his largest specimen 

 does not exceed three eighths of an inch in its axis, and yet appears an adult shell. 

 Although so close an approximation, I think it is distinct, and that gentleman is of 

 the same opinion. 



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