PLATE X. 



Fig. 



1, 2. Trigonia Voltzii, Ag. (71 Thurmanni, Cont.). Kimmeridge Clay, near 



Weymouth. (Page 20.) 



3, 3, a. ,, detrita, Terq. and Jour. Forest Marble, near Cirencester, 



Gloucestersliire. (Page 75.) 



4. „ „ Cornbrasli, Hilperton. (Page 75.) 



5, 7, 8. ,, conjungens, Phil. Inferior Oolite (Millepore bed), Cloughton, near 



Scarborough. (Page 62.) 



6. „ geographica, Ag. Coral Rag, Pickering. (Page 69.) 



