SYNOPTICAL ARRANGEMENT. 



91 



SYNOPTICAL ARRANGEMENT of the POLYZOA CYCLOSTOMATA. 



§ I. Articulatse b. radicatae 



§11. Inarticulat£E s. adfixse I 



Crisiidse 



Idmoneidse 



f Cellulis distinctis . ^ . Tubuliporid^ 



Diastoporidae 



' Cerioporidae 



^ Cellulis indistinctis . ( 



Theonoidae 



V, Frondiporidae 



Crisidia 

 Hornera 

 Terebellaria 

 Cricopora 

 Cyrtopora 

 Idmonea 

 Ptistulipora 

 Mesenteripora 

 Tubidipora 

 Aleeto 

 Diastopora 

 Patinella 

 Discoporella 

 Defrancia 

 Stellipora 

 Fungella 

 Heteropora 

 Neuropora 

 Alveolaria 

 Spiropora 

 ^ Heteroporella 

 Theonoa 

 Fascicularia 

 Lopholepis 

 Apsendesia 

 Frondipora 

 Truncatula 

 Distichopora 

 Plethopora. 



Note. — The families and genera in italics contain living species. 



