EXPLANATION OF PLATE LXVI. 



Fig. 1. — Polyp of Pluniareila Icevis, sp. nov. 

 Fit,'. 2. — ,, Mopsea whiteleggei, sp. nov. 



Fig. 3.- —Spicules of the same. 

 Fig. +. — Polyp of Phiinarella versluysi, sp. nov. 

 Fig. 5. — „ „ thelis, sp. nov. 



