PLATE XIII. 



Fig. 



1. Terebratula insignis, Schubler, from the Coralline Oolite of Malton. 



2, 3. Terebratula globata, Sow., from the original specimens now in the collection 



of Mr. J. de C. Sowerby : Inferior Oolite. 



4. „ „ Dundry. 



5. „ ,, a curious variety from the Inferior Oolite of 



Cheltenham. 



6. 7. „ ,, from Cheltenham. 



8. Terebratula bucculenta, Sow. The original specimen now in the collection 



of Mr. J. de C. Sowerby — said to be 

 from the Coralline Oolite of Malton. 



9. Terebratula Bentleyi, Morris, MS., from the Cornbrash of Wallaston, 



Northamptonshire. 



11. Terebratula Bentleyi, var. Sub-Bentleyi, Dav., from the Inferior Oolite of 



Minchinhampton. 



12. Terebratula coarctata, Parkinson, from the Great Oolite of Bath. 



13. „ ,, interior. 



14. „ „ an enlarged fragment of the shell, showing 



the spinose surface. 



15. ,, ,, an unusual variety. 



16. Terebratula pygmea, Morris, from the Lias of Ilminster. 

 I6a,5,c. ,, ,, enlarged illustration. 



17. Terebratella hemisphaerica, Sow., natural size; Great Oolite, Hampton Cliff, 



Bath. 

 IS. „ „ enlarged illustrations. 



19. Thecidea Dickensonii, Moore, MS., from the Inferior Oolite of Dinnington. 



