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郭淳鹏, 钟茂君, 梁家骅, 汪晓意, 胡军华. 2022: 中国西南部原指树蛙属一新种(无尾目:树蛙科). 动物学研究, 43(1): 90-94. DOI: 10.24272/j.issn.2095-8137.2021.293
引用本文: 郭淳鹏, 钟茂君, 梁家骅, 汪晓意, 胡军华. 2022: 中国西南部原指树蛙属一新种(无尾目:树蛙科). 动物学研究, 43(1): 90-94. DOI: 10.24272/j.issn.2095-8137.2021.293
Chun-Peng Guo, Mao-Jun Zhong, Ka Wah Leung, Xiao-Yi Wang, Jun-Hua Hu. 2022: A new species of the genus Kurixalus (Anura: Rhacophoridae) from Sichuan Province, southwestern China. Zoological Research, 43(1): 90-94. DOI: 10.24272/j.issn.2095-8137.2021.293
Citation: Chun-Peng Guo, Mao-Jun Zhong, Ka Wah Leung, Xiao-Yi Wang, Jun-Hua Hu. 2022: A new species of the genus Kurixalus (Anura: Rhacophoridae) from Sichuan Province, southwestern China. Zoological Research, 43(1): 90-94. DOI: 10.24272/j.issn.2095-8137.2021.293

中国西南部原指树蛙属一新种(无尾目:树蛙科)

A new species of the genus Kurixalus (Anura: Rhacophoridae) from Sichuan Province, southwestern China

  • 摘要: 该研究基于形态学和分子生物学证据将采自四川盆地西缘邛崃山区的原指树蛙描述为一新种,命名为邛崃原指树蛙Kurixalus qionglaiensis sp. nov .。该物种可通过以下形态特征与同属其它物种相区别:体型中等,雄性体长28.9−33.3 mm;鼓膜大于眼径的1/2;吻端尖,突出于下唇;虹膜金色散有棕褐色斑点;雄蛙婚垫弱,位于第一指基部;背面棕色,体侧后面和股部黄色;颊部有一具深棕色边缘的白色三角形斑;颏部有暗褐色云斑;胸部有一对左右对称的深色大斑,腹部无大黑斑,有棕色云斑并散布黑色细点;趾间半蹼,蹼式为 Ⅰ 2−2 Ⅱ 1.5−2.5 Ⅲ 1.5−2.5 Ⅳ 2.5−1.5 Ⅴ;胫长略小于体长的1/2,胫跗关节贴体前伸达眼后缘;雄性具单咽下外声囊。邛崃原指树蛙与面天原指树蛙K. idiootocus亲缘关系最近,两者在16S rRNA基因上的平均遗传距离为4%。邛崃原指树蛙目前仅记录于四川省邛崃市平乐镇,海拔约600米;该记录地点为原指树蛙属(Kurixalus)纬度最北的已知分布地点。

     

    Abstract: Combining morphological and molecular data, we describe a new amphibian species of the genus Kurixalus Ye, Fei, & Dubois, 1999 from the Qionglai Mountain within the western margin of the Sichuan Basin in China. Kurixalus qionglaiensis sp. nov. can be diagnosed based on a combination of the following morphological characters: medium-sized within genus (snout-vent length (SVL) in males 28.9−33.3 mm); tympanum distinct, subequal to half of eye diameter; snout pointed, prominence on tip; iris golden with brown spots; slight nuptial pad on first finger in males; background coloration of dorsal surface brown, lateral body and femoral yellow; white, dark brown edged triangular markings on cheek; chin shaded dark brown; pair of large symmetrical dark patches on chest; belly clouded brown and scattered black spots; toes moderately webbed, formula Ⅰ 2–2 Ⅱ 1.5–2.5 Ⅲ 1.5–2.5 Ⅳ 2.5–1.5 Ⅴ; tibia length slightly shorter than half of SVL, tibiotarsal articulation reaching posterior border of eye; single external vocal sac present. Based on the 16S rRNA gene, the genetic distance between the new species and its sister taxon K. idiootocus (Kuramoto & Wang, 1987) was 4%. At present, the new species is known only from a single location at an elevation of ~600 m in Pingle Town, Qionglai City, Sichuan, southwestern China. This location can represent a new northernmost geographical limit of the genus Kurixalus.

     

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