Plate 5. 



Campanularia ' obliqua, sp. nov., page 9. 

 Fig. 1. Natural size, growing on Thuiaria tubuliformis. 

 Figs. 2 and •">. The two specimens enlarged, x HG. 

 Fig. 4. The same specimen as figure 2. x GO. 



Obelia (?) sp., page 10. 

 Fig. 5. Natural size, on Thuiaria tubuliformis. 

 Fig. 6. An entire colony, x 116. 

 Fig. 7. The distal end of a hydrotheca. 



