EXPLANATION OF PLATE VII. 



Fig. 1. Halicornaria baileyi, Bale. 

 Fig. 2. Halicornaria furcata, Bale. 

 Fig. 3, Halicornaria intermedia, sp. nov. 



Proximal end of hydroeladiuru. 

 Fig. 4. Halicornaria intermedia, sp. nov. 



Distal portion of hydroeladium. 

 Fig. •">. Halicornaria urceolifera (Lamarck). 



The specimen figured is of the maximum width ; the 

 hydrocladia are usually narrower, often no wider than 

 those of 77. furcata. 

 Fig. 6. Halicornaria birostrata, sp. nov. 



Fisrs. L-6 x 80. 



