In 1894 (the twentieth year of Guangxu in the Qing Dynasty), Ma Guanqun attached the map Dong Nan Yang Yan Hai Dao An Guo Tu to his book Geography of China and Overseas Countries. In the map, in the present-day Xisha Qundao section, there is a mark reading "Wanzhou Zhui (Xiong) Ta Island", which referred to Taitu Beach (aka Xidu Beach) in Xisha Qundao, while "Wanzhou" indicated that it fell within the jurisdiction of Wanzhou, Qiongzhou Prefecture, Guangdong Province.
Dong Nan Yang Yan Hai Dao An Guo Tu