Page:Quarterly Journal of the Geological Society of London, vol. 33.djvu/253

Rh J. S. GARDNER ON BRITISH CRETACEOUS rATELLID.E ETC. 205

Fig. 17. Scurria depressa, sp. nov. Same locality.

Pig. 18. Tectara tenidstriata, Seeley. Gault, Cambridge ; Woodwardiau

Museum. Figs. 19, 20. Tectum tenuicosta, D'Orb. Gault, '^Folkestone ; Gardner

collection. Figs. 21, 22, 23. Crepidula gaultina, Buvignier. Gault, Folkestone ;

Gardner collection. Fig. 24. Pileopsis dubia, sp. nov. Gault, Folkestone ; Gardner collection. Fig. 25. Calyptraa Grayana, Tate. Upper Chalk, Ireland ; Jermyn-street

Museum. Fig. 26. Helcion, sp. ? Buck Hill, Bedfordshire, probably derived from

the Kimmeridge Clay. Figs. 27, 28, 29, 30. Calyptrcsa concentrica, sp. nov. Gault, Folkestone.

Plate VIII.

Fig. 1. Emarginida neocomiensis, D'Orb. Neocomian specimen from the

Leckenby collection. Atherfield. Fig. 2. Ditto, side view. Fig. 2 a. Part of same, enlarged.

Fig. 3. Ditto, specimen from the British Museum. Seend. Fig. 4. Ditto, side view.

Figs. 5. 6. Specimens from the Jermyn-street Museum. Atherfield. Fig. 6 a. Part of same, enlarged. Figs. 7, 8, 9. Emarginida valangiensis, Pict. & Camp. Neoconrian. Mr.

Meyer's collection. East Shalford. Figs. 10, 11. Emarginida puncturella, sp. nov. Neocomian. Mr. Meyer's

collection. Figs. 11 a, lib, lie. The same, enlarged. Figs. 12, 13. Emarginida Gresslyi, Pict. & Camp. Grey Chalk. Gardner

collection. Figs. 14, 15."' Emarg inula Meyeri, sp. nov. Chloritic Marl, Lyme Eegis.

Mr. Meyer's collection. Figs. 16, 17. E. Gresslyi. Lower Chalk, Isle of Wight.. Jermyn-street

Museum. Fig. 18. Ditto. Upper Greensand, Devizes. Jermyn-street Museum. Figs. 19, 20. E. divisiensis, sp. nov. Upper Greensand, Devizes; British

Museum. Figs. 21, 22. E. sanctce-catharincs, Passy, from the Chloritic Marl of

Whitemore ; Jermyn-street Museum. Figs. 23, 24. E. ancistra, sp. nov. Upper Greensand, Roundway, near

Devizes ; British Museum. Figs. 25, 26. E. unicostata, Seeley, MS. Upper Chalk, Norwich ; Wood-

wardian Museum. Fig. 27. Tectum plana, sp. nov., nat. size. Neocomian. Mr. Meyer's

lection. Figs. 28, 29. The same, enlarged.

Plate IX.

Figs. 1, 2. Cmcibulum giganteian, sp. nov. Neocomian, Hythe ; Gardner

collection. Figs. 3, A, 5. Anisomyon vectis, sp. nov. Neocomian, Atherfield ; Wood-

wardian Museum. Figs. 6, 7, 8, 9. Pimcturella antiqua, sp. nov. Upper Greensand, Devizes ;

British Museum. Figs. 10, 11. Tectum formosa, sp. nov. Lower Greensand, Shanklin. Mr.

Meyer's collection. Figs. 12, 13. Hipponyx Dixoni, Deshayes. Chalk ; Jermyn-street Museum.