Abstract Xenochrophis bellulus (Stolickza, 1871) was described as Tropidonotus bellulus based on a single specimen collected from Myanmar in the late 19th century. Since then the holotype has been lost, and the species has been transferred to several genera in the subfamily Natricinae including Natrix, Sinonatrix and finally Xenochrophis based on one museum specimen matching the original description. Herpetofaunal surveys of the Moyingyi Wildlife Sanctuary and vicinity, Bago Region, Myanmar revealed three individuals obtained in 2001 and 2003 that match the type description of X. bellulus. This small series of newly collected specimens allows us to redescribe this species based on all known material, provide a description of the hemipenis, designate a neotype and comment on its taxonomic status.

中文翻译：

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重新发现来自缅甸（Serpentes：Natricinae）的 Xenochrophis bellulus () 及其分类地位的评论

摘要 Xenochrophis bellulus (Stolickza, 1871) 根据 19 世纪后期从缅甸采集的单个标本被描述为 Tropidonotus bellulus。从那时起，正模标本已经丢失，该物种已转移到 Natricinae 亚科中的几个属，包括 Natrix、Sinonatrix 和最终基于一个与原始描述相符的博物馆标本的 Xenochrophis。缅甸勃固地区 Moyingyi 野生动物保护区及附近地区的爬行动物调查显示，在 2001 年和 2003 年获得的三个个体与 X. bellulus 的类型描述相匹配。这一系列新收集的标本使我们能够根据所有已知材料重新描述该物种，提供对半阴茎的描述，指定新型并评论其分类地位。