PLATE XL 



Fig. 



1 . Terebratula intermedia, Soio. Cornbrash. 



<*• » » 



4. ,, „ Young shell, without biplication. 



5. „ „ Interior, from specimens in the British Museum. 



6. Terebratula Phillipsii, Morris. Inferior Oolite, Dinnington. 



7. „ „ From Burton. 



8. „ „ Young shell. 



9. Terebratula sphaeroidalis, Sow. The type specimens in the collection of Mr. J. de C. 



Sowerby, from the Inferior Oolite. 



10. „ „ From the Inferior Oolite of Sherburn. 



11. „ „ Interior. 



12. „ „ A specimen illustrating the sinuous frontal margin 



observable in some specimens. 



13. „ „ Another specimen. 



14. „ ,, From the Inferior Oolite of Dundry. 



15. „ „ A specimen, showing a cessation and resumed growth 



visible in some specimens. 



16. „ „ From the Inferior Oolite of Dinnington. 



17. ,, „ Inferior Oolite of Burton Radstock. 



18. „ ,, From the Inferior Oolite of Dinnington. 



19. „ „ The original specimen of Ter. bullata, Sow,, now in 



the collection of Mr. J. de C. Sowerby. 



20. Terebratula globulina, Dew. Natural size, from the Lias of Ilminster. 



21. ,, ,, Magnified illustration. 



