CONTENTS. 



Introductor}' observations 



Ou the structure and affinities of the Polyzoa 



Synopsis of primary divisions 



Of the Cheilostomata 



„ Synoptical classification of 



„ Tabular view of 



Cellulariid^ 



Scrupocellaria 



,, scruposa 



SaLICORKARIID/E 



Salicornaria .... 



„ crassa 



„ sinuosa 



Hippothoidse 



Hippothoa .... 



J, Patagonica 

 „ abstersa 

 „ dentata 

 Alysidota .... 



„ labrosa 

 ,, catena 

 Membraniporid^ 



„ synopsis of genera 



Membranipora 



„ synopsis of species 



Membranipora tuberculata 

 „ tnonostachys 



„ Savartii 



„ dubia 



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