Abdala Cristian Simón, Procopio Diego Esteban, Stellatelli Oscar Aníbal, Travaini Alejandro, Monachesi Mario Ricardo Ruiz
Instituto de Herpetología, Fundación Miguel Lillo - Facultad de Ciencias Naturales e IML, UNT - Miguel Lillo 205, S. M. de Tucumán, Tucumán, Argentina.; Email:
Centro de Investigaciones Puerto Deseado, Universidad Nacional de la Patagonia Austral, Avenida Prefectura Naval s/n, 9050 Puerto Deseado, Santa Cruz, Argentina.; Email:
Zootaxa. 2014 Sep 25;3866(4):526-42. doi: 10.11646/zootaxa.3866.4.4.
We describe a new species within the genus Liolaemus from southeast Argentine Patagonia. This new taxon, Liolaemus yatel sp. nov., presents anatomical traits shared with the Liolaemus lineomaculatus section within the Liolaemus lineomaculatus group, especially the absence of precloacal pores in both sexes. However, Liolaemus yatel sp. nov. does not exhibit trifid dorsal scales, which is a diagnostic character of the L. lineomaculatus group. Moreover, this new species differs from other taxa of the L. lineomaculatus group in that dorsal and nuchal scales either completely lack keels or are slightly keeled. We also report, for the first time, the presence of trifid scales in Liolaemus magellanicus, another species included in the L. lineomaculatus section but constituting an independent lineage regarding the L. lineomaculatus group. The phenotypic traits of L. yatel sp. nov. and the presence of trifid scales in L. magellanicus provide additional information for the study of evolutionary relationships among the species of the L. lineomaculatus section, especially the establishment of their diagnostic character states.
我们描述了一种来自阿根廷巴塔哥尼亚东南部的丽纹龙蜥属新物种。这个新分类单元，即雅特尔丽纹龙蜥（Liolaemus yatel sp. nov.），具有与丽纹龙蜥组（Liolaemus lineomaculatus group）中条纹丽纹龙蜥亚组（Liolaemus lineomaculatus section）共有的解剖学特征，特别是两性均无泄殖腔前孔。然而，雅特尔丽纹龙蜥不具有三叉背鳞，而三叉背鳞是条纹丽纹龙蜥组的一个诊断特征。此外，这个新物种与条纹丽纹龙蜥组的其他分类单元不同之处在于，其背鳞和颈背鳞要么完全无棱，要么仅有轻微棱起。我们还首次报告了麦哲伦丽纹龙蜥（Liolaemus magellanicus）中存在三叉鳞，麦哲伦丽纹龙蜥是条纹丽纹龙蜥亚组中的另一个物种，但在条纹丽纹龙蜥组中构成一个独立的谱系。雅特尔丽纹龙蜥的表型特征以及麦哲伦丽纹龙蜥中三叉鳞的存在，为研究条纹丽纹龙蜥亚组各物种之间的进化关系，特别是确定它们的诊断特征状态，提供了更多信息。
