Brain coral is circular in shape with deep grooves on its surface, resembling a human brain. This type of coral is composed of rows of coral polyps whose tentacles are neatly arranged on both sides of the coral polyps, with their mouths long at the bottom and shaped like grooves. The circular structure of corals helps them withstand the impact of waves. Lingshui Xincun Port, Xinying Linchang, Weizhou Island, Huaguang Reef, Panshi Island, Xian'e Reef, Xinyi Reef. Features: Coral skeletons are pleated and leaf shaped, with edge leaves or groups forming a semi tree like shape, and small leaves of varying sizes twisted into ear shaped protrusions in the center. On the surface of the non coral cup, the septum forms a continuous ridge, with a thick center and thin edges. Crack irregularly at the end of the blade.