PLATE XLVI. 



FIG. 



1. TunuLiPORA phalangea, p. 273, of the natural size. 



2. The same magnified. 



3. 4. A variety of Tubulipora phalangea, p. 274. 



5, 6. Tubulipora flabellaris, p. 274. Of the natural size 

 and magnified. 



