PLATE 40 E. 



Fig. 1. 563. 1. Ceramopora imbricata. (Pag. 169.) 



1 a, b. Upper surface of two specimens of different size. 1 c. Profile outline, natural size. 



1 d. Vertical section magnified, showing structure and arrangement of the tubular cells. 



1 e. The centre of fig. 1 a magnified, showing the upper extremities of the tubes bending outward, and the 



form of apertures. 

 1 /. A portion of the surface enlarged, looking into the cells, and showing the alternating and imbricating 



arrangement. 

 1 h. An individual of the same species, somewhat compressed, and the surface worn. 



1 i. An enlarged portion of the surface of 1 h. 



Fig. 2. 564. 2. Ceramopora incrustans. (Pag. 169.) 



2 a. The surface of this coral, natural size. 



2 b. The interior of the shell, showing the extension of the coral over the edge of the valve. 

 2 c. Profile showing the nodulose surface. 



2 d. An enlargement of the surface, showing form and arrangement of cells. 



Fig. 3. 565. 3. Ceramopora foliacea. (Pag. 170.) 



3 a. A portion of a frond, natural size. 



3 b. The surface enlarged, showing form and arrangement of cells. 



3 c. A portion of the surface enlarged, showing the foliate impressions and arrangement of cells around them. 



Fig. 4. 566. 3. Rhinopora tuberculosa. (Pag. 170.) 



4 a. A fragment of a larger frond. 



4 6. A portion of the surface enlarged, showing the papillose cells, and tubercles with smooth summits. 



4 c. A small portion still farther enlarged, showing some variety in the form of the apertures. 



Fig. 5. 567. 1. LiCHENALIA CONCENTRICA. ( P^g- 171.) 



5 a. The concave side of a young specimen. 5 b. The convex side of another larger individual. 

 5 c. A larger imperfect frond, one half of which only remains. 



5 d. A fragment showing the condition of these fronds when drifted together. 



5 e. An enlargement of the celluliferous side, where the ceils are strongly developed. 



5 /. Another fragment where the cells scarcely rise above the surface. 



5 g. An enlargement of the non-celluliferous side, showing the form and arrangement of the stigmata. 



Fio-. 6. 568. 1. Sagenella mebibranacea. (Pag- 172.) 



G a. A fragment of an Orthoceras covered by this coral, showing at two points a' , a" , the grovrth of other 

 corals upon this one., 



6 6. An enlarged portion of the surface, showing the form and arrangement of the cells in this species, and 



in a species of C.vllopora which covers it in parts. 



Fig. 7. An incrusting Coral enveloping a Stephanocrinus. (Pag. 173.) 



7 a. The coral enveloping a broken crinoid. 7 b. An enlargement of a portion of the surAice. 



Fig. 8. An incrusting membrano-calcareous Coral, (Pag- 173.) 



8 a. A portion of Lichenalia, on which this coral is growing. 



8 b. An enlargement showing mode of growth and character of tubes. 



