Plate 15. 



Hawaiian deep-sea corals. 



Figs. 1, la. Madrepora kauaiensis Vaughan. Fig. 1, corrallum, natural size ; 

 fig. la, part of a branch, X Al, of the same specimen. 



2. Madracis kauaiensis Vauglian, corallum, natural size. 



3. Anisopsammia amphelioides (Alcock), part of a corallum, natural 



size. 

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