Vogel Gernot, David Patrick, Chandramouli S R
Society for Southeast Asian Herpetology, Im Sand 3, D-69115 Heidelberg, Germany.; Email:
Reptiles & Amphibiens, UMR 7205 OSEB, Département Systématique et Évolution, Muséum National d'Histoire Naturelle, 57 rue Cuvier, 75231 Paris Cedex 05, France; Email: unknown.
Zootaxa. 2014 Apr 14;3786:557-73. doi: 10.11646/zootaxa.3786.5.4.
The Asian pitviper currently identified as Trimeresurus labialis Fitzinger in Steindachner, 1867 is revised on the basis of morphological data obtained from 37 preserved specimens originating from seven islands of the Nicobar Islands. Multivariate analyses shows that these specimens can be divided into two clusters of populations which differ by a series of constant taxonomically informative morphological characters. The first cluster, which includes the name-bearing types of Trimeresurus labialis Fitzinger in Steindachner, 1867, is present only on Car Nicobar Island. The second cluster, which includes the name-bearing types of Trimeresurus mutabilis Stoliczka, 1870, is distributed on the Central Nicobar Islands. We regard these clusters as distinct species, which are morphologically diagnosable and isolated from each other. As a consequence, Trimeresurus mutabilis, long considered a synonym of T. labialis, is here resurrected to specific level. A lectotype is designated for Trimeresurus mutabilis.
基于从尼科巴群岛七个岛屿采集的37份保存标本所获得的形态学数据，对目前被鉴定为1867年施泰因达赫纳所定的Trimeresurus labialis菲茨inger的亚洲蝮蛇进行了修订。多变量分析表明，这些标本可分为两个种群集群，它们在一系列恒定的、具有分类学信息的形态特征上存在差异。第一个集群，包括1867年施泰因达赫纳所定的Trimeresurus labialis菲茨inger的命名模式标本，仅存在于卡尔尼科巴岛。第二个集群，包括1870年斯托利茨卡所定的Trimeresurus mutabilis的命名模式标本，分布在中尼科巴群岛。我们将这些集群视为不同的物种，它们在形态上可诊断且相互隔离。因此，长期以来被视为Trimeresurus labialis同义词的Trimeresurus mutabilis在此恢复到物种水平。为Trimeresurus mutabilis指定了一个选模式标本。
