PLATE 40 E. 



f.g. 1 ■ d63. .1. Lii'v;. Mui-of.A ii.iBRiCATA. (.fag' '*jy) 



- f. • . Upper surAce of two specimens of different size. I c. Profile outline, natural size. 



d. VpT-tical section magnified, showing structure and arrangement of the tubular cells. 

 ■. c. The centre of ?.g. 1 a raagaified, showing the upper extremities of the tubes bonding outward, and the 



form of apertures. 

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



irrangeinont. 

 I A. An individual of the same species, somewhat compressed, and the surface worn. 



1 !. An enlarged portion of the surface of 1 A. 



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



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



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

 2 c. Profile showing the noduU)se surface. 



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



Fig. 3. 065. 3. Ceramopora foliacea. ( Pag. 170.) 



•J a. A poniou of a frond, natural size. 



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



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



ig. 4. 566. 3. Khi.n'opora tuberculosa. (Pag. 170.) 



4 a. A frrgment of a larger frond. 



•I b. A portion of the surface enlarged, showing the papillose cells, and tubercles with smooth summits. 



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



Fig. 5. 567. ]. Lichexalia concentrica. (Pag. 171.) 



5 a. The cjnca.-e side of a young .specimen. 5 b. The convex side of another larger individual, 

 5 c. A laig:^ imporfoct frond, one half of which oniy remains. 



u d. A fiagiueul showing the condition of these fronds when drifted together. 



." e. An enlargement of the celluliferous side, where the cells arc strongly developed. 



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



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



Fig. 6. 56S. 1. Sagekella MEMBRANACEA, ^ Pag. 172.) 



a A fragment of an Orthoceras covered by this coral, showing at two points a', a", *ho growth of other 



corals upon this one. 

 (> b. An enlarged portion of the surf.ice. showing the form and arrangement of ihe cells in this species, and 



ill a .species of C.illopoea which covers it in parts. 



Fig. 7. An incniming Coral enveloping a Stephanocrimis. ( Pag. 173.) 



7 II. Tije coral ciiveloiiing a broken crinoid. 7 b. An enlargement of a portion of Hie surface. 



Fig. S. A/i incrusting membrano-calcareous Coral. ( Pag. 173.) 



8 (I. A portion of I.ichena'.ia, on which this coral is growing. 



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



