External morphology, polyps and sclerites of Chrysogorgia dendritica MBM286442 A, B the bottlebrush-like colony in situ and after collection (likely a juvenile) C a single polyp under a light microscope D a single polyp under SEM E tentacular part under SEM F coenenchyme under SEM G sclerites in tentacles H sclerites extending to pinnules I sclerites of the polyp neck J sclerites in coenenchyme K sclerites at the basal polyp body. Scale bars: 10 cm (B); 1 mm (C, D); 300 μm (E, F); 200 μm (G, I–K at the same scale), 100 μm (H).