Background Yongxing Island (about 1.85 km2) is the largest island of the Xisha Islands. It is located in the Western South China Sea and belongs to the tropical ocean monsoon climate zone. Yongxing Island is quite rich in biological resources, for example, plants and birds which have been well documented. However, there are limited reports on spider resources in Yongxing Island. New information A preliminary checklist of spiders of the Yongxing Island is provided, based on a short-term study undertaken in January 2008. A total of 23 species, belonging to 21 genera and 11 families, were recorded from the area, which forms baseline information of spiders of the Yongxing Island. Amongst these, Oonopidae, Pholcidae, Araneidae and Salticidae were found to have more species in the area. Brignolia parumpunctata (Simon, 1893), Opopaea apicalis (Simon, 1893), Opopaea deserticola Simon, 1891 and Xyphinus baehrae Kranz-Baltensperger, 2014 were firstly reported from China, for which we provide taxonomic description in this paper.

中文翻译：

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南海永兴岛蜘蛛清单，附有四种地精蜘蛛的分类注释

背景 永兴岛（约1.85平方公里）是西沙群岛中最大的岛屿。地处南海西部，属热带海洋季风气候区。永兴岛的生物资源相当丰富，植物、鸟类等有大量文献记载。但是，关于永兴岛蜘蛛资源的报道有限。新信息 根据2008年1月进行的一项短期研究，提供了永兴岛蜘蛛的初步清单。该地区共记录了21属11科23种，形成基线信息永兴岛蜘蛛群。其中，Oonopidae，Pholcidae，Araneidae和Salticidae被发现在该地区拥有更多的物种。Brignolia parumpunctata (Simon, 1893)、Opopaea apicalis (Simon,