About Radianthus crispa (Hemprich & Ehrenberg, 1834)
The sebae anemone, which has the scientific name Radianthus crispa (Hemprich & Ehrenberg, 1834), is distinguished by a flared oral disc that reaches 20 to 50 cm in diameter. It has multiple long tentacles that measure 10 to 15 cm; these tentacles have rounded tips, and the tip is often marked with a purple or blue spot. The tentacles range in color from light beige to purple. As a member of Hexacorallia, this sea anemone typically has a number of tentacles that is a multiple of six, arranged in concentric circles. Its column, the external structure visible when the anemone is closed, is gray and covered in small sticky whitish warts. The sebae anemone is widely distributed across tropical and subtropical waters of the Indo-Pacific, ranging from the eastern coasts of Africa (including the Red Sea) to Polynesia, and from southern Japan to Australia and New Caledonia. It prefers hard base substrates that are lightly covered with sand, but it can also cling to branching corals. It lives at depths from the surface down to 40 meters.
