EXPLANATION OF PLATE II. 

 Figs. 1, la. Trochocyathus rotulus X 2. 



Fig. 2. Desmophyllum vitreum, natural size. 



Figs. 2 a, 26. Desmophyllum vitreum, X 2. 



Figs. 3, 3<y, 3b. Flabellum paripavoninum, natural size. 

 Figs. 4, 4a. Flabellum laciniatum, Phil., natural size. 

 Figs. 5, 5a. Thecocyathus cincticiilatus, X 3. 

 Figs. 6, 6. Stephanotrochus nitene, natural size. 



