Caption 1519 A closeup of the polyps of organ pipe coral the living animals feed with stinging polyps .
19管珊瑚的珊瑚虫特写;活的动物以这些有刺的珊瑚虫为食。
organ-pipe coral:管珊瑚
有机质岩 organolite | 管珊瑚 organ-pipe coral | 定位;定向 orient