Marín Andrea González, Pérez Cristian Hernán Fulvio, Minoli Ignacio, Morando Mariana, Avila Luciano Javier
Instituto Patagónico para el Estudio de los Ecosistemas Continentales, Consejo Nacional de Investigaciones Científicas y Técnicas (IPEEC-CONICET), Boulevard Almirante Brown 2915, U9120ACD, Puerto Madryn, Chubut, Argentina.; Email:
Zootaxa. 2016 Jun 10;4121(4):412-30. doi: 10.11646/zootaxa.4121.4.3.
The integrative taxonomy framework allows developing robust hypotheses of species limits based on the integration of results from different data sets and analytical methods. In this work, we test a candidate species hypothesis previously suggested based on molecular data, with geometric and traditional morphometrics analyses (multivariate and univariate). This new lizard species is part of the Phymaturus patagonicus group (payuniae clade) that is distributed in Neuquén and Mendoza provinces (Argentina). Our results showed that Phymaturus rahuensis sp. nov. differs from the other species of the payuniae clade by a higher number of midbody scales, and fewer supralabials scales, finger lamellae and toe lamellae. Also, its multidimensional spaces, both based on continuous lineal variables and geometric morphometrics (shape) characters, do not overlap with those of the other species in this clade. The results of the morphometric and geometric morphometric analyses presented here, coupled with previously published molecular data, represent three independent lines of evidence that support the diagnosis of this new taxon.
综合分类学框架允许基于不同数据集和分析方法的结果整合，来提出关于物种界限的可靠假设。在这项工作中，我们运用几何形态测量学和传统形态测量学分析（多变量和单变量），检验了先前基于分子数据提出的候选物种假设。这种新的蜥蜴物种是分布于内乌肯省和门多萨省（阿根廷）的巴塔哥尼亚鬃狮蜥组（Payuniae分支）的一部分。我们的结果表明，新物种拉乌鬃狮蜥（Phymaturus rahuensis sp. nov.）与Payuniae分支的其他物种不同，其体中段鳞片数量更多，而上唇鳞片、指蹼和趾蹼的数量更少。此外，基于连续线性变量和几何形态测量学（形状）特征的多维空间，它与该分支中的其他物种并不重叠。本文给出的形态测量和几何形态测量分析结果，再加上先前发表的分子数据，代表了支持这一新分类单元诊断的三条独立证据链。
