598 PLIOCENE MOLLUSCA. 



■> 



Dimensions. — L. 8 mm. B. 4 mm. 



Distrihntioii. — Not known living. 

 Fossn : St. Erth. 



Bemarlcs. — 1 describe and figure this specimen as a separate species under 

 Mr. Bell's varietal name. It does not approach very nearly to the type form of 

 E. jiPuihiJa and I am inclined to regard it as specifically distinct. In such case it 

 may be known as E. turgi<la. 



Eulimene bithynseformis, Etheridge and Bell. Plate L, fig. 30. 



1893—98. EaViinene hithyiui-fui-mls, A. Bell, Proc. Roy. Irish Acad. [3J, vol. ii, p. 629, 1893; Trans. 

 Roy. Geol. Soc. Cornwall, vol. xii, p. 151, 1898. 



Sjyedfic Characters. — Shell ovato-conical ; whorls 5, slightly convex, rapidly 

 increasing in size, the last tumid, much the largest; without sculpture ; spire verj^ 

 short, ending in a blunt point ; suture distinct but not deep ; mouth ovate, 

 compressed and angulate above, rounded below; inner li[) slightly reflected, 

 forming a well-marked ridge. 



Dimensions. — Ii. 8 mm. B. 5 mm. 



DistriJndion. — Not known living. 

 Fossil : St. Erth. 



B,emarls. — The fossil from St. Erth here figured seems a distinct form, l)eing 

 specially characterised by a raised ridge inside the mouth, parallel with the edge 

 of the peristome. In Mr. Bell's paper he says it resem.bles a Bifhijnia, but he 

 considers its generic relations are doubtful. Our specimen belongs to the British 

 Museum of Natural History. 



Eulimene grandis, A. Bell, MS. Plate L, fig. 31, 



■Specific Characters. — Shell strong, conical, with a rounded base; whorls 5, 

 slightly convex; spire short, tapoi'ing to a blunt point; suture slight; mouth oval, 

 angulate above, rounded below; peristome continuous; outer lip gently curved; 

 inner lip narrow, clearly marked. 



Dimensions.- — L. 10 mm. B. 6 — -7 mm. 



Distribution. — Not known living. 



Fossil : Waltonian Crag : Walton-on-Naze, Little Oakley. 



R.emarls. — The present form is an undescribed species of Mr, Bell's, allied to 

 E. terehellata, but the body-whorl is rounded and not distinctly angulate as in that 

 species. The specimen now figured is from the York Museum, where it bears Mr. 

 Bell's name, having been found by him in the basement bed at Walton. Another, 

 showing curiously imbricated and oblique lines of growth on the body-whorl, 

 probably abnormal, was obtained by myself at Oakley. 



