安徽师范大学动物学团队发现肥螈属新成员 中新网合肥10月23日电 (记者 吴兰)记者23日从安徽师范大学获悉，该校生命科学学院动物学团队近日 在安徽清凉峰国家级自然保护区发现了一个肥螈属新成员——陈氏肥螈(Pachytriton cheni)。该新种的发 现使肥螈属的已知物种数增至11种。 相关成果日前发表在国际动物学权威期刊《动物学》(Animals)上。 中国东部山地是我国乃至全球两栖动物多样性研究的重要区域，孕育了许多特有物种。肥螈属 (Pachytriton)作为该区域的代表性两栖类群之一，具有对水环境依赖性强、分布范围狭窄等特点，是揭 示山地生物演化过程的重要研究对象。 陈氏肥螈(P. cheni)活体形态及。王苏盆/摄 研究团队在清凉峰国家级自然保护区开展了系统性野外考察，综合运用形态学比较、分子系统发育分析 和多物种溯祖模型等多种现代分类学方法，最终成功鉴定确认该物种为肥螈属的一个新种。 研究表明，陈氏肥螈在遗传关系上与近缘种秉志肥螈形成明确的姐妹群关系，两者在线粒体基因和核基 因上存在显著分化。基于多物种溯祖模型进行的贝叶斯物种界定分析结果，为其独立物种地位提供了决 定性证据。 在形态方面，该 ...

Core Findings - A new species of tree frog named "Motuo Tree Frog" has been discovered in Motuo County, Tibet, by a collaborative research team from various institutions [1][2] - The research was published in the international journal "Animal Systematics and Evolution" [1] Research Methodology - The research team conducted in-depth investigations in the mountainous areas of Motuo County, at altitudes ranging from 500 to 1700 meters [1] - Initial identification categorized the frogs as known species, but detailed morphological comparisons and molecular phylogenetic analyses revealed their true identity as a new species [1] Species Characteristics - The Motuo Tree Frog has a medium body size, with adult lengths ranging from 31.6 mm to 55.5 mm [1] - Distinctive features include a reddish-brown or gray-green back, unique skin protrusions at the tip of the snout, black spots on the sides, and prominent triangular skin folds at the ankle joints [1] Significance of Findings - The study highlights significant morphological and genetic differences between the Motuo Tree Frog and the previously known Two-spotted Tree Frog [2] - The research reevaluated the geographical distribution of the Two-spotted Tree Frog, confirming its range is limited to northern India and central-western Myanmar, contrary to previous beliefs of a broader Southeast Asian distribution [2] - The discovery contributes to the understanding of amphibian diversity and evolution in the Himalayas, providing essential data for biodiversity conservation policies in Tibet [2]