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Description of a new species of the genus Dendrelaphis Boulenger, 1890 from Myanmar (Squamata: Serpentes: Colubridae)

机译:缅甸的一种新物种Dendrelaphis Boulenger的描述,1890年(鳞茎:蛇形:Colubridae)

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The population systematics of the colubrid snake so far referred to as Dendrelaphis gorei(Wall, 1910) wereinvestigated by carrying out a multivariate analysis of geographic variation. The results reveal the existence of two dis-tinct and apparently disjunct phenotypes. These phenotypes are assumed to represent independent evolutionary lineag-es. The first lineage corresponds with D. goreiwhich inhabits the Assam Valley and adjoining Himalayan foothills. How-ever, the name Dendrophis goreiWall, 1910 is actually a junior synonym of Dendrelaphis biloreatusWall, 1908. Con-sequently, the latter name is adopted for this lineage. The second lineage, described in this paper as a new species, in-habits the South Myanmar lowlands and neighbouring mountain chains. It is distinguished from D. biloreatuson the ba-sis of its higher ventral count (203–212 versus 190–199), its undivided anal shield (divided in D. biloreatus) and its high-er average number of anterior temporal shields (usually 2 versus usually 1).
机译:通过对地理变异进行多变量分析,研究了迄今被称为Dendrelaphis gorei(Wall,1910)的共生蛇的种群系统。结果表明存在两种截然不同的表型。假定这些表型代表独立的进化谱系。第一个血统与D. gorei相对应,D。gorei居住在阿萨姆邦山谷并毗邻喜马拉雅山麓。但是,1910年的Dendrophis goreiWall这个名字实际上是1908年的Dendrelaphis biloreatusWall的一个初级同义词。因此,在这个世系中采用了后者的名字。第二种谱系,在本文中被描述为一种新物种,栖息于缅甸南部低地和邻近的山脉。它与D. biloreatus的区别在于其较高的腹侧计数(203–212对190–199),其未分割的肛门盾(分为D. biloreatus)和其较高的平均前颞侧盾(通常为2与通常的1)。

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