Smith : Fossil Invertebrate Fauna.] 



[Phil. Journ. Sci , VIII, A, No. 4. 



m 



14 



PLATE XIII. 

 Fig. 1. Operculina costata d'Orbigny. 2. Orbitolites complanata Lam. 3, 4. Sections of the 

 same much enlarged. 5. Orbitoidal and coralline limestone. 6, 7. Lepidocyclina insulae- 

 natalis Jones et Chap., central part. S. Lepidocyclina formosa Schlm. (?) 9. Lepido- 

 cyclina formosa Schlm. (?), detail of the surface, much enlarged. 10. Flabellum sp. 11, 

 12. Lepidocyclina formosa Schlm. (?) 13-16. Lepidocyclina insulae-natalis Jones et Chap. 

 17, 18. Portions of radiolarian tests. 



