TAB. II. 



CORALS FROM THE LONDON CLAY. 



DlPLHELIA PAPILLOSA (p. 28). 



Fig. 1. A branch of this compound corallum ; natural size. 



1 a. Terminal portion of one of the corallites, much magnified, and having half of 

 its calice cut away so as to show the structure of the septa and the thickness 

 of the walls. 



1 b. Calice, magnified. 



OCULINA CONEERTA (p. 27). 



Fig. 2. A small mass of this compound corallum ; natural size. 



2 a. Terminal portion of one of the corallites magnified, and cut down so as to 



show the structure of the columella, the pali, the septa, and the thickness 

 of the walls. 



2 b. Calice, magnified. 



TURBINOLIA BoWERBANKII (p. 16). 



Fig. 3. Adult specimen ; natural size. 



3 a. The same magnified, so as to show the characters of the intercostal furrows. 



3 b. Calice, magnified. 



TURBINOLIA PIRMA (p. 20). 



Fig. 4. Adult specimen ; natural size. 



4 a. The same, magnified. 



4 b. Calice, magnified. 



TURBINOLIA MINOR (p. 19). 



Fig. 5. Adult specimen ; natural size. 



5 a. Magnified view of the same. 

 5 b. Calice, magnified. 



