PLATE LXXXII. 



FIG. 



1. Rhabdopleura Normani, p. 580; nat. size. 



2. , portion of the zoarium, with the con- 

 tained polypideSj very much enlarged. 



3. The polypide of R. mirabilis, Sars^ removed from its 



cell: c, the " buccal shield ; " d, the cord by which 

 the polypide is attached to the axial rod. 



4. R. NoRMANi, statoblast, 



5. , polypide bud in a very early stage. 



6. , ditto more advanced : a, one of the two 



fleshy plates between which the developing poly- 

 pide is included. 



7. , ditto in a still more advanced stage. 



[All the above figures are after Allman, with the ex- 

 ception of fig. 3, which is copied from G. O. Sars.] 



