Two New Species of Diploderma Hallowell, 1861 (Reptilia: Squamata: Agamidae) from the Hengduan Mountain Region in China and Rediscovery of D. brevicaudum (Manthey, Wolfgang, Hou, Wang, 2012)
Two New Species of Diploderma Hallowell, 1861 (Reptilia: Squamata: Agamidae) from the Hengduan Mountain Region in China and Rediscovery of D. brevicaudum (Manthey, Wolfgang, Hou, Wang, 2012)
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中国横断山区的两种新种 Diploderma Hallowell，1861 年（爬行纲：有鳞目：蜥蜴科）和 D. brevicaudum 的重新发现（Manthey、Wolfgang、Hou、Wang，2012）
DOI：
10.11646/zootaxa.4941.1.1
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发表时间：
2021
期刊：
影响因子：
0.9
通讯作者：
SILER, CAMERON D.
中科院分区：
文献类型：
--
作者：
WANG, KAI;GAO, WEI;WU, JIAWEI;DONG, WENJIE;FENG, XIAOGANG;SHEN, WENJING;JIN, JIEQIONG;SHI, XIUDONG;QI, YIN;SILER, CAMERON D.
最近的研究强调了中国西南横断山区 Diploderma Hallowell, 1861 属的多样性被低估，但该地区大部分地区的爬行动物多样性调查仍然很少。在本研究中，我们根据形态、遗传和分布数据的评估，描述了金沙江上游和雅砻江中游流域的两个新种梁皮菌。这两个新物种在形态上与 D. angustelinea 和 D. vela 最相似，但可以通过一系列形态特征，特别是喉斑的独特颜色，从已识别的分类群和所有剩余的同源物中诊断出它们。此外，这两个新物种要么使其他已识别的物种成为并系，要么就其形态相似的同系物而言是异域的。此外，我们首次在野外重新发现了仅从历史博物馆标本中得知的 D. brevicaudum。我们根据线粒体谱系估计了 D. brevicaudum 在梁皮属中的系统发育位置，并提供了与密切相关的同系物的扩展诊断和比较，并根据新收集的标本提供了生命中颜色的详细描述。我们对新梁皮属物种的发现进一步凸显了目前被忽视的中国横断山区干热河谷生态系统的迫切保护需求。
Recent studies have highlighted the underestimated diversity of the genus Diploderma Hallowell, 1861 in the Hengduan Mountain Region in Southwest China, but much of the region remains poorly surveyed for reptile diversity. In this study we describe two new species of Diploderma from the upper Jinsha and middle Yalong River Valley, based on evaluations of morphological, genetic, and distribution data. The two new species are morphologically most similar to D. angustelinea and D. vela, but they can be diagnosed from both recognized taxa and all remaining congeners by a suite of morphological features, particularly the distinct coloration of gular spots. Additionally, both new species either render other recognized species paraphyletic or are allopatric with respect to their morphologically similar congeners. Furthermore, we rediscover D. brevicaudum in the wild for the first time, which was known from historical museum specimens only. We estimate the phylogenetic position of D. brevicaudum within the genus Diploderma based on mitochondrial genealogy, and we provide an expanded diagnosis and comparisons against closely related congeners and provide a detailed description of coloration in life based on newly collected specimens. Our discoveries of the new Diploderma species further highlight the urgent conservation needs of the currently neglected hot-dry valley ecosystems in the Hengduan Mountain Region of China.