PLATE XIV. 



Metopaster uncatds, Forbes, sp. (Page 47.) 



From the Upper ChalJc. 



Fig. 



1 a. Abactinal aspect; natural size. (Coll. Brit. Mus.). 



b. An ultimate paired supero-marginal plate ; magnified. 



2 a. Abactinal aspect of another example ; natural size. (Coll. Brit. Mus.) 



b. Lateral view of the margin ; natural size. 



c. A supero-marginal plate ; magnified. 



d. The madreporiform body ; magnified 4 diameters. 



3. Actinal aspect ; copied from the figure given by Forbes in Dixon's ' Geology 

 of Sussex ' (pi. xxi, fig. 5). 



Metopaster cingulatus, Sladen. (Page 53.) 

 From the Upper Challc. 



4 a. Abactinal aspect ; natural size. (Coll. Brit. Mus.) 



b. Lateral view of the margin ; natural size. 



c. A supero-marginal plate ; magnified. 



d. An abactinal intermediate plate ; magnified. 



Metopaster cornutus, Sladen. (Page 55.) 



5 a. Abactinal aspect ; natural size. 



b. Lateral view of the margin ; natural size. 



c. An ultimate paired supero-marginal plate seen from above ; magnified. 



d. The same seen in profile (lateral view) ; magnified. 



