GASTEROPODA. 109 



2. Paltjdestrina ulve. Penn. 



Locality. Oor. Crag, Gedgrave. Recent, Britain. 



A few specimens of this very common estuary species were found by myself on 

 the upper part of the Coralline Crag, along with some Helices, Cyrencs, and the 

 usual common marine shells of that formation. The spot whence they were 

 obtained is near the surface, and it may possibly have been some disturbed and 

 redeposited material of a more modern period. My specimens are strongly tinged 

 with their natural colour, and have the aspect of recent shells. 



3. Paltjdestrina (?) terebellata. Nyst. Tab. XII, fig. 7. 



Melania terebellata. Nyst. Coq. foss. de Belg. p. 413, pi. 38, fig. 12, 1844. 



P. Testa turritd, elongato-conoided, crassd, lavigatd (?) ; anfractibus septem vel octo, 

 planulatis ; ultimo anfractu obtuse angulato ; aperturd ovatd utrinque sub acuta ; labio 

 reflexo, umbilico tecto. 



Shell turreted, of an elongato-conical shape, thick and strong, with seven or 

 eight rather flat and smooth (?) volutions ; last whorl subangulated at the base ; 

 aperture slightly acuminated above and below ; left lip a little reflected, covering 

 the umbilicus. 



Axis, f- of an inch. 



Locality. Red Crag, Sutton and "Walton Naze. 



This is not a very abundant species, and is always in a more or less mutilated and 

 altered condition ; all my specimens have been much rubbed and decorticated, and 

 the lines of growth are not clearly distinguishable. Its appropriation to the present 

 genus is a doubtful one. 



4. Paltjdestrina (?) pendula. S. Wood. Tab. XII, fig. 6. 



Eulima pendula. S. Wood. Catalogue 1842. 



P. Testa turritd, subulatd, elongatd, laevigata; anfractibus 8 — 9, convexiusculis ; 

 aperturd ovatd ; labio subrejlexo. 



Shell turreted, tapering, elongated, and smooth, with eight or nine slightly 

 convex volutions ; aperture ovate, acuminated at the upper part ; left lip slightly 

 reflected. 



Axis, f of an inch. 



Locality. Red Crag, Walton Naze. 



Although not a very rare shell, my specimens are all much rubbed or decorti- 

 cated ; those which are most perfect have about eight slightly convex volutions, 

 with an aperture resembling shells of this genus. This may be also considered 

 doubtfully appropriated to this genus. It is an elegantly-formed shell, somewhat 

 resembling an elongated ear-drop. 



