XIV 



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lOI. 



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 no. 



CORALS 



Merlia nor))iani 



Diagram of structure of Merlia 



Filogrmia implexa 



Filograna implexa 



Lithothamniou 



Lithothaninion diniorphum 



Section of thallus of a Lithopliylluin 



Section of tetrasporangial conceptacle of Lithothaninion 



Section of young tetrasporangial conceptacle of a 



Lithophyllum 

 A jHphiroa calif or nica 

 Galaxaura 

 Halimeda opuntia 

 Halimeda opioitia 

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