Amarasinghe A A Thasun, Poyarkov Nikolay A, Campbell Patrick D, Leo Sandy, Supriatna Jatna, Hallermann Jakob
Research Center for Climate Change, University of Indonesia, Gd. PAU Lt. 8.5, Kampus UI, Depok 16424, Indonesia..
Zootaxa. 2017 May 26;4272(1):103-118. doi: 10.11646/zootaxa.4272.1.5.
Eutropis rugifera has long been identified as a widespread species complex distributed in Nicobar, Peninsular Malaysia, Greater Sundaic Islands, Bali, Sulawesi and the Philippines. This skink was described by Stoliczka in 1870 from Nicobar Island based on a single specimen (holotype by monotypy). Later, Peters (1871), Bartlett (1895) and Werner (1896) described three more species which were morphologically similar to Euprepes percarinatus (from Java), Mabuia rubricollis (Borneo) and M. quinquecarinata (Sumatra) respectively, which are currently considered junior objective synonyms of Eutropis rugifera. We examined all the available synonym types and voucher specimens of Eutropis rugifera deposited at several museums. A morphological examination of the types of this species and mtDNA analysis (584 bp of 16S rRNA) of the samples from different biogeographic regions revealed that Eutropis rugifera from Nicobar Island, Bali Island, and Bawean Island are composed of a monophyletic species. However, the taxonomic status of the above population requires further clarification, and the population in Bawean Island may represent a cryptic species. Finally, we provide a complete redescription of E. rugifera based on its holotype.
粗鳞真棱蜥长期以来一直被认定为一个分布广泛的物种复合体，分布于尼科巴群岛、马来西亚半岛、大巽他群岛、巴厘岛、苏拉威西岛和菲律宾。这种石龙子由斯托利茨卡于1870年根据尼科巴岛上的一个单一标本（单型模式标本）进行描述。后来，彼得斯（1871年）、巴特利特（1895年）和维尔纳（1896年）又分别描述了另外三个物种，它们在形态上分别类似于来自爪哇的细纹真棱蜥、婆罗洲的红颈真棱蜥和苏门答腊的五棱真棱蜥，目前这些被认为是粗鳞真棱蜥的次同物异名。我们检查了存放在几家博物馆的粗鳞真棱蜥所有现有的同物异名标本和凭证标本。对该物种标本的形态学检查以及对来自不同生物地理区域样本的线粒体DNA分析（16S rRNA的584碱基对）表明，来自尼科巴岛、巴厘岛和巴韦安岛的粗鳞真棱蜥构成一个单系物种。然而，上述种群的分类地位需要进一步澄清，巴韦安岛的种群可能代表一个隐存种。最后，我们根据其模式标本对粗鳞真棱蜥进行了完整的重新描述。
