Plate 31. 



1-4. Phyllaeanthus Thomasii A. Ag. ami Clark. 



1. Abantinal view of cleaned test of small specimen. 



2. Actiiial view of same. 



3. Interarabulacral view of same. 



4. Ambulacral view of same. 



5-8. Anomoeidaris tenuispina A. Ag. and Clark. 



5. Abactinal view of partly cleaned specimen. 

 C. Actinal view of same. 



7. Interambulacral view of same. 



8. Ambulacral view of same. 



All figures natural size. 



