140 THREE CRUISES OF THE " BLAKE." 



446), of a light pink, fading into white in the younger branch- 



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HHK s^: *. 



Fig. 446. Stylaster filogranus. 



(Pourtales.) 



lets. The color is diffused through the entire thickness of the 

 corallum. Another common Stylaster is Distichopora foliacea 



Fig. 447. Distichopora f oliacea. \- (Pourtalfcs.) 



(Pig. 447), characterized by its small calycles, not placed in a 

 furrow, irregular lateral pores, and serrated edge. 



