PLATE LXV. 



I'ifi. 



1; 2. Idmonea Atlantica, p. 151 ; portion of a branchy 

 front surface. 



3. , nat. size. 



4. , dorsal surface. 



5, 6. Entalopiiora clavata, p. 45G ; terminal portion of 

 a branch. 



7.  , cellular apex of the branch. 



8.  , nat. size. 



