TABLE OF POLYZOA. 105 



TABLE D. 



Systematic Table to show the Classification 



OF THE 



PHYLUM POLYZOA. 



CLASS I ECTOPEOCTA. 

 Anus outside the tentacular circlet. 



Order. L GYMNOL^EMATA. 



Ectoprocta with circular lophophore, 

 without epistome. 



Sub-order 1 Cheilostomata. 



The orifice of the zocecium can be closed by an operculum. 

 Avicularia, vibracula, and ovicells, are often present. 



TRIBE A. CELLULAEINA. TRIBE B. FLUSTKINA. 



8 Families. 4 Families. 



TRIBE C. ESCHAEINA. 12 Families. 



