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首页> 外文期刊>Zootaxa >Two novel genera and one new species of treefrog (Anura: Rhacophoridae) highlight cryptic diversity in the Western Ghats of India
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Two novel genera and one new species of treefrog (Anura: Rhacophoridae) highlight cryptic diversity in the Western Ghats of India

机译：两种新的属和一种新的树蛙（阿努拉：Rhacophoridae）突出了印度西高止山脉的神秘多样性

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摘要

Amphibian diversity in the Western Ghats-Sri Lanka biodiversity hotspot is extremely high, especially for such a geographically restricted area. Frogs in particular dominate these assemblages, and the family Rhacophoridae is chief among these, with hundreds of endemic species. These taxa continue to be described at a rapid pace, and several groups have recently been found to represent unique evolutionary clades at the genus level. Here, we report DNA sequences, larval and breeding data for two species of rhacophorid treefrog (Polypedates bijui and a new, hitherto undescribed species). Remarkably, they represent unique, independent clades which form successive sister groups to the Pseudophilautus (Sri Lanka) + Raorchestes (India, China & Indochina) clades. We place these species into two new genera (Beddomixalus gen. nov. and Mercurana gen. nov.). Both of these genera exhibit a distinct reproductive mode among Rhacophoridae of peninsular India and Sri Lanka, with explosive breeding and semiterrestrial, unprotected, non-pigmented eggs oviposited in seasonal swamp pools, which hatch into exotrophic, free-living aquatic tadpoles. Relationships and representation of reproductive modes in sister taxa within the larger clade into which these novel generaare placed, is also discussed. These results suggest that more undescribed taxa may remain to be discovered in South Asia, and the crucial importance of conserving remaining viable habitats.
机译：西高止山脉-斯里兰卡生物多样性热点地区的两栖动物多样性非常高，尤其是在这样一个地理限制的地区。这些组合尤其以青蛙为主导，而其中的Rhacophoridae科则以数百种特有物种为主导。这些类群继续被快速描述，最近发现有几类在属水平上代表独特的进化进化枝。在这里，我们报告了两种横纹树蛙（Polypedates bijui和一个迄今未描述的新物种）的DNA序列，幼虫和育种数据。值得注意的是，它们代表了独特的，独立的进化枝，形成了假单胞菌（斯里兰卡）+ Raorchestes（印度，中国和印度支那）进化枝的连续姐妹群。我们将这些物种分为两个新属（Beddomixalus gen。nov。和Mercurana gen。nov。）。这两个属在印度半岛和斯里兰卡的Rhacophoridae中都表现出独特的繁殖方式，在季节性沼泽池中繁殖出爆炸性繁殖和半陆生，无保护，无色素的卵，这些卵孵化成营养外的，自由生活的水生t。还讨论了这些新属的较大进化枝中姐妹分类单元中生殖方式的关系和表示。这些结果表明，更多未描述的生物分类可能仍会在南亚发现，这对于保护剩余的可行栖息地至关重要。

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