PLATE LI. 



FIG. 



1. NOTAMIA WJRSARIA, Flem. p. 394: Shepherd 1 s-purse Co- 



ralline, Ellis. Of the natural size. 



2. A portion of the same magnified. This beautiful and 



graceful zoophyte has been recently found at Walton-. 

 on-the-Naze by Dr. W. B. Clarke. " It was found 

 growing in small quantities upon Choudrus crispus 

 thrown upon the shore of this part of Essex in August 

 1846." W. B. Clarke. 



5. A pair of cells more highly magnified. 



6. A front view of the cells magnified. 



7. A back view of the cells magnified. For the drawings 



of Figs. 6 and 7 I am indebted to Dr. Clarke. 



3. 4. HIPPOTHOA DIVARICATA, p. 291. Of the natural size 



and magnified. From a fine specimen presented by 

 Lieut. Thomas, R.N. 



