Fie. 
i 
2. 
PLATE IX. 
CORALS FROM THE RED CHALK OF HUNSTANTON. 
A variety of Microbacia coronata, Goldfuss. Natural size. (P. 24.) 
The usual appearance presented by the worn specimens of Podoseris mammiliformis, 
Dunean.” (P22 25.) 
rd The calice, magnified. 
A specimen with a large base. 
A natural section (longitudinal) showing the synapticulz, magnified. 
A specimen showing a convex calice, the costee and synapticulz, magnified, 
A specimen with epitheca, magnified. 
Natural size. 
An irregularly shaped corallum. 
Its base, magnified. 
The side view, magnified. 
A short specimen. 
A magnified view of it, showing the synapticule. 
The corallum of Podoseris elongata, Duncan. (P. 26.) 
Its costae, magnified. 
The corallum of Cyclolites polymorpha, Goldfuss. (P. 24.) 
