FROM THE OOLITIC STRATA. 23 



The fossa is shallow. 



The septa are ornamented with elongated, bead-shaped projections, and their costal 

 prolongations are very long, and are also ornamented in the same manner. 



Some of the external costse on the calicular surface bifurcate, and even divide into 

 three portions. Usually the costse are subequal and the synapticulae are very numerous 

 and distinct. 



Height of corallum 1 inch. 



Breadth of calicular surface If inch. 



Locality. East Coker. Inferior Oolite. 



In the Collection of W. Mansel, Esq., F.G.S. 



Genus — Cyclolites. 

 1. Cyclolites Lyceti, Duncan. PI. Ill, figs. 7 — 9. 



The corallum is small, pedunculate, depressed, and nearly flat, and the calicular margin 

 is everted and elliptical. 



The epitheca is strongly marked, and is in folds. 



The calicular fossa is in the centre of the calicular surface. 



The septa are very numerous, alternately large and small, and are delicately ornamented 

 with moniliform projections. 



The calice is slightly convex. 



Height of the corallum -njths inch. 



Length of the calice 1-njths inch. 



Locality. Inferior Oolite. 



In the Collection of Dr. Holl, F.G.S. 



2. Cyclolites Beanii, Duncan. PI. Ill, figs. 10, 11. 



The corallum is turbinate and greatly expanded, and slightly concave above. It is 

 slightly flat at the base where it adhered. 



The epitheca is stout, and in transverse folds. 



The calicular margin is nearly circular. 



The septa are very numerous, and number about 220. They are unequal, long, 

 and moniliform, here and there. 



The synapticulae are very numerous. 



Height of corallum \ inch. 



Breadth of calice 1^ inch. 



