PLATE LXXVI. 



FIG. 



1 . BowERBANKiA pusTULosA, p. 522 : nat. size. 



2. , group of cells, with polypides expaaded. 



3-5. , zooecia, showing the subspiral arrange- 

 ment. 



6. BowERBANKiA ciTRiNA, p. 524 ; nat. size. 



7. , group of cells, with polypides expanded. 



8. , ditto, showing its comparatively small 



size. 



