PLATE XVII. 



Fig. 



1. Tngonia Woodwardi, Lye. Kimmeridge Clay, Dorsetshire. (Page 40.) 



2. 8, 4. ,, Beesleyana, Lye. Inferior Oolite, Combe Hill, Oxfordshire. (Page 90.) 

 5, 6. ,, undulata, From. Great Oolite, South Lincolnshire. (Page 77.) 



7. „ clytia, D'Orb. Great Oolite, Box, near Bath. (Page 7G.) 



