MONOGRAPH OF THE EXISTING CBINOIDS, 



209 



m 



B 



Fio. H5.— Lateral view of a specimen of Thalassocrctus poNTirER from the Moluccas, sno-wisa the distal roRTtoN 



OF THE COLUMN, -WITHOUT THE TERMINAL STEM PLATE (a), THE CENTRAL PORTION OF THE COLUMN (6), ASH THE PROXIMAL 

 PORTION OF THE COLUMN AND THE CBOWN (c), THE L.IST UXCSTRATINO THE RELATIONSHIPS OF THE BASALS, RAriALS. 

 AND ASMS. 



