PLATE 36. 



COCCODISCIDA. 



Diam. Page 

 Fig. 1. Coccodiscus lamarckii, n. sp., . . . . x 500 459 



The left half of the figure represents a horizontal section through the 

 peripheral shell, the right half a view of the surface. 



Fig. 2. Coccodiscus goethei, n. sp., , . . . . x 500 461 



Vertical section nearly through the centre. 



Fig. 3. Lithocyclia lenticula, n. sp., . . x 400 459 



Fig. 4. Lithocyclia lenticula, n. sp., . x 400 459 



Vertical section through the centre. 



Fig. 5. Coccocyclia helianthus, n. sp., . x 400 468 



Fig. 6. Coccocyclia helianthus, n. sp., . . . . . x 500 468 



Vertical section through the outer medullary shell, showing the inner. 



Fig. 7. Astrocyclia solaster, n. sp., . x 300 466 



Fig. 8. Astrocyclia heterocycla, n. sp., . . . x 400 468 



Horizontal section through the equatorial plane. 



