龙蜥属Diploderma(爬行纲Reptilia:鬣蜥科Agamidae)部分物种的分类及分布记录修订

Revised Distributions of Some Species in the Genus Diploderma (Reptilia: Agamidae) in China

尽管学者近期在中国龙蜥属Diploderma分类研究上取得了连续进展,我国龙蜥属物种的分布资料中仍有大量的存疑记录,例如多种龙蜥同域分布、记录分布点远离其余已知分布区、记录点与模式产地处于完全不同的生物地理区系等。本文结合形态及分子数据,对龙蜥属部分存疑记录进行了修订。确定了先前报道的云南省、西藏自治区、四川省、甘肃省及湖北省的草绿龙蜥Diploderma flaviceps记录为同属其他物种的误记;其中,四川省北部及甘肃省南部报道的草绿龙蜥为米仓山龙蜥D.micangshanense的误定,云南省中西部的草绿龙蜥为沙坝龙蜥D.chapaense的误定,西藏自治区与湖北省的草绿龙蜥分别为巴塘龙蜥D.batangense及米仓山龙蜥的误定,以上两地的巴塘龙蜥与米仓山龙蜥则分别代表西藏自治区和湖北省的省级爬行动物新记录。此外,确认了昆明龙蜥D.varcoae分布于云南省西双版纳的报道为地点信息的误记,实际标本采于云南省大理市鸡足山。确定了云南省景东彝族自治县先前记录的云南龙蜥D.yunnanense实际为沙坝龙蜥的误定,并拓展了早先认为是狭域分布的沙坝龙蜥的分布范围,将其分布区向西北方向扩大至云南省中西部。最后,更新了我国已知龙蜥属物种的分布及相关文献,并讨论了我国自然历史博物馆在更新物种分类及分布信息上的滞后及其对后续研究及物种保育的负面影响。

Although recent studies have made considerable progresses on the taxonomy of the genus Diploderma,there are still many questionable records of Diploderma species in China.Among these are suspicious sympatric distributions of congeners,locality records that fall well outside of the recognized range of a given species,and records that are in zoogeographic regions distinct from those of the type localities.Combining both morphological and molecular phylogenetic data,some of the suspicious and questionable records of Diploderma in China are revised.Specifically,previous records of D.cf.flaviceps in west-central Yunnan province,Tibet Autonomous Region,Sichuan,Gansu and Hubei provinces represent misidentifications of the recognized species,which are D.chapaense,D.batangense,and D.micangshanense,respectively.The records of D.micangshanense and D.batangense in Hubei province and Tibet Autonomous Region represent new province records for the corresponding province,respectively.In addition,the record of D.varcoae from Xishuangbanna in southern Yunnan province is a mistake,and the referred specimens were actually collected from Jizu Mountain in Dali,west-central Yunnan province instead.Furthermore,the record of D.cf.yunnanense in south-central Yunnan province is a misidentification of D.chapaense,which expands the distribution of this previously believed micro-endemic species northwestwards.Lastly,the distribution data for all recognized Diploderma species in China are updated based on the current studies and recent literatures,and the negative impacts of outdated taxonomy and distributional data in the Chinese natural history collections are also discussed.