TAB. IX. 
CORALS FROM THE UPPER CHALK. 
CYATHINA LEVIGATA (p. 44). 
Fig. 1, 1a, 14. Specimens of different forms ; natural size. 
1c. Calice of the specimen fig. 1, magnified. It is to be remarked that in this 
specimen there are only nine pali; these organs not existing in the half 
systems, where the septa of the fourth cyclum are not developed. 
1d. Calice of the specimen fig. 14, magnified, and showing the twelve pali and 
the complete fourth cyclum of septa. 
Parasmitia Frrroni (p. 50). 
Fig. 2. Side view of the corallum ; natural size. 
2a. Specimen of a different form, magnified to show the structure of the wall. 
24, Calice, magnified. 
CORALS FROM THE LOWER CHALK. 
SYNHELIA SHARPEANA (p. 53). 
Fig. 3. A branch of this compound corallum ; natural size. 
3a. Portion of the same magnified. 
STEPHANOPHYLLIA BowERBANKII (p. 54). 
Fig. 4. Calicular surface ; natural size. 
4a. Side view of the same, magnified. 
46, Calice, magnified. 
4c. Mural disc, magnified. 
