26 BRITISH FOSSIL CORALS, 
2. Poposrris FLONGATA, Duncan. PI. IX, figs. 16, 17. 
The corallum is tall, with a broad, circular, and slightly concave base, a long, conico- 
cylindrical stem; and a small calice, much narrower than the base. 
The epitheca is in bands. 
The costz are alternately large and very small, somewhat distant, wavy, and united 
by synapticule, many of which are oblique. 
The septa frequently unite by their axial ends. 
There appear to be five cycles of 
septa. 
The base of the corallum has a cellular tissue, probably from the fossilization of some 
body to which it was adherent. 
Height inch. Breadth of base } inch. Calice ! inch. 
The shape of this species is most unusual. 
Locality. Hunstanton. In the Collection of the Rev. T. Wiltshire, F.G.S. 
