196 CORALS 



that the most reasonable \-ie\v to take is that we are deahng 

 here with one species whicli is endowed with a remarkable 

 capacity for variation. 



Accepting this view, it may be said that Filograna 

 implexa has been found in the Arctic Seas, off the British 

 and Norwegian coasts, in the Mediterranean and Red Seas, 

 in the Indian Ocean, and in Australian waters — a remark- 

 ably cosmopolitan distribution. 



