140 THREE CRUISES OF THE " BLAKE." 



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



Fig. 446. Stylaster filogranus. {. (Pourtales.) 



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

 corallum. Another common Stylaster is Distlchopora foliacea 



Fig. 447. Distichopora f oliacea. \. (Pourtales.) 



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

 furrow, irregular lateral pores, and serrated edge. 



