PLATE LXXIV. 



FIG, 



1. MiMosELLA GRACILIS, p. 556 j nat. size. 



^- , portion of a pinna, showing the double 



line of cells ; a single zocecium thrown back. 



^' :, stem, showing the internodes and the 



tubular projections to which the cells are jointed. 



'^- , terminal portion of a pinna, with buds 



in various stages. 



^} 6. , zooecia, showing the mode of attach- 

 ment. 



7. Amathia lendigera, p. 516 ; nat. size. 



8- , one of the sets of cells, with the poly- 



pides expanded. 



9- J portion of zoarium. 



1 ^- , extremity of branch, with cells budding. 



