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Range DescriptionX. xiurenensis is endemic to southern China; this species is found 'throughout the Zhujiang (Pearl) River, northward to Lijiang River near Guilin, Guangxi, southward to Zoujiang River near Longzhou, Guangxi' (Chen and Lundberg 1994). This species is hardly known beyond it's type locality (F. Fang, pers. comm.).