CONTENTS. 



IX 



H. reticulata 

 ,, IfPvicjata 



Heteroporella 



,, radiata 



„ parasitica 



Theonoid^ 



Alveolaria 



,, semiovata 



Fascicularia 



„ tubipora 



„ aurantium 



Addenda and Coriugenda 



Eschara socialis 



Lepralia Milneana 



Flustra dubia 



Index 



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