ABSTRACT Pachydactylus is the most species-rich reptile genus in southern Africa. Most species are habitat specialists adapted to hyper-arid conditions of the Namibian and north-western South African xeric regions. Although a fair number of phylogenetic studies and taxonomic revisions have been published, some species still remain rather enigmatic. In the ten years since the taxonomic revision of the weberi group, some of the species have not been recorded and our knowledge on their distribution, phylogenetic affinities, or intraspecific variability is limited or non-existent. Pachydactylus goodi is one such species. In this study, we report a newly discovered population of P. goodi in the Richtersveld National Park, South Africa, which considerably extends the known range of the species. In addition, the results of our phylogenetic analyses indicate that P. goodi is paraphyletic with respect to P. atorquatus. Although there is a striking colour polymorphism observed between these two species, the level of genetic differentiation within the goodi-atorquatus clade is comparable with intraspecific variability observed in other Pachydactylus species. As a result of these findings, which are further supported by morphological similarity of the two species, we conclude that they represent a single species and synonymise P. goodi with P. atorquatus.

中文翻译：

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对 Pachydactylus weberi 组（有鳞目：壁虎科）的系统发育和分类学的贡献：种内颜色多态性混淆分类学的案例

摘要 Pachydactylus 是南部非洲物种最丰富的爬行动物属。大多数物种是适应纳米比亚和南非西北部干旱地区超干旱条件的栖息地专家。尽管已经发表了相当多的系统发育研究和分类学修订，但一些物种仍然相当神秘。自 weberi 组分类学修订以来的十年中，一些物种没有被记录下来，我们对它们的分布、系统发育亲和力或种内变异性的了解是有限的或不存在的。Pachydactylus goodi 就是这样一种物种。在这项研究中，我们报告了南非 Richtersveld 国家公园新发现的 P. goodi 种群，这大大扩展了该物种的已知范围。此外，我们的系统发育分析结果表明 P. goodi 与 P. atorquatus 是并系的。尽管在这两个物种之间观察到显着的颜色多态性，但在 goodi-atorquatus 进化枝内的遗传分化水平与在其他 Pachydactylus 物种中观察到的种内变异性相当。作为这些发现的结果，这进一步得到了两个物种形态相似性的支持，我们得出结论，它们代表一个物种，并将 P. goodi 与 P. atorquatus 同义。