bb Cfi 
656 
ON HETEEOPH YLLI A , BATTEESBYIA, PALAIOCYCLTJS, AND ASTEEOSMILIA. 
5. The corallum of Aster osmilia exaratci, sp. nov. : slightly magnified. 
6 a. Magnified view of the calice of a species of the genus Pcdceocyclus ( Cyotho - 
jahyllum). 
b. Magnified view of the septa : transverse section, showing the absence of 
synapticulse. 
c. Magnified view of the dissepiments between the septa. 
d. A magnified longitudinal section of a discoid species. 
e. Magnified view of a longitudinal section, showing tabula and a vesicular 
endotheca, proving the genus to belong to the OyatkopkyiMdw. 
