PLATE XL 



FIG. 



1. BUGULA FLABELLATA, p. 80 ; a portion of a shoot, 

 nat. size. 



3. , front and dorsal surfaces. 



4. , avicularium. 



5. BUGULA CALATHUS, p. 82 ; nat. size. 



7. , front and dorsal surfaces. 



8. , avicularia. 



