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Polyphyly of Asian Tree Toads, Genus Pedostibes Günther, 1876 (Anura: Bufonidae), and the Description of a New Genus from Southeast Asia

机译:亚洲蟾蜍的多本属,PedostibesGünther属,1876年(阿努拉:Bufonidae),以及东南亚一个新属的描述

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摘要

The Asian Tree Toad genus Pedostibes, as currently understood, exhibits a conspicuously disjunct distribution, posing several immediate questions relating to the biogeography and taxonomy of this poorly known group. The type species, P. tuberculosus and P. kempi, are known only from India, whereas P. hosii, P. rugosus, and P. everetti are restricted to Southeast Asia. Several studies have shown that these allopatric groups are polyphyletic, with the Indian Pedostibes embedded within a primarily South Asian clade of toads, containing the genera Adenomus, Xanthophryne, and Duttaphrynus. Southeast Asian Pedostibes on the other hand, are nested within a Southeast Asian clade, which is the sister lineage to the Southeast Asian river toad genus Phrynoidis. We demonstrate that Indian and Southeast Asian Pedostibes are not only allopatric and polyphyletic, but also exhibit significant differences in morphology and reproductive mode, indicating that the Southeast Asian species’ are not congeneric with the true Pedostibes of India. As a taxonomic solution, we describe a new genus, Rentapia gen. nov. to accommodate the Southeast Asian species.
机译:目前了解到的亚洲蟾蜍属Pedostibes表现出明显不同的分布,提出了几个与这一鲜为人知的群体的生物地理学和分类学相关的直接问题。仅从印度知道结核分枝杆菌和肯氏假单胞菌的种类,而霍氏假单胞菌,皱纹假单胞菌和everetti假单胞菌仅限于东南亚。几项研究表明,这些异源群是多系群的,印度的Pedostibes包埋在主要是南亚蟾蜍中的蟾蜍中,其中包含腺腺,Xanthophryne和Duttaphrynus属。另一方面,东南亚Pedostibes嵌套在东南亚进化枝中,这是东南亚河蟾蜍属Phrynoidis 的姐妹血统。我们证明印度和东南亚的 Pedostibes 不仅具有异源性和多系统性,而且在形态和生殖方式上也表现出显着差异,这表明东南亚的物种与真正的 Pedostibes并不同源。 。作为分类学解决方案,我们描述了一个新的属 Rentapia gen。 ,以适应东南亚的物种。

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