Matsui Masafumi, Khonsue Wichase, Panha Somsak, Eto Koshiro
1 Graduate School of Human and Environmental Studies, Kyoto University, Sakyo, Kyoto 606-8501, Japan.
Zoolog Sci. 2015 Apr;32(2):204-10. doi: 10.2108/zs140238.
We report a new tree frog of the genus Gracixalus from western Thailand and describe it as a new species Gracixalus seesom based on results of morphological and molecular analyses. The new species is a small-sized Gracixalus (male snout-vent length ca. 22 mm) and is morphologically similar to G. gracilipes, but is easily distinguished from it by its dorsal tan color in life, absence of white spot on lower lip, and black markings on its foot webbing. The new species also clearly differs from all the other members of the genus by the combination of small body size, triangular snout, and light yellowish brown dorsum without distinct tuberculations. Problems of phylogeny and taxonomy of the genus Gracixalus are briefly discussed.
我们报道了一种来自泰国西部的新种棱皮树蛙属树蛙，并根据形态学和分子分析结果将其描述为新物种棱皮树蛙（Gracixalus seesom）。该新物种是一种小型棱皮树蛙（雄性吻肛长约22毫米），形态上与细肢棱皮树蛙（G. gracilipes）相似，但在生活中其背部呈棕褐色、下唇无白斑以及蹼上有黑色斑纹，这使其易于与细肢棱皮树蛙区分开来。新物种还因体型小、吻部呈三角形以及浅黄棕色背部无明显瘤状突起的组合特征，明显区别于该属的所有其他成员。文中简要讨论了棱皮树蛙属的系统发育和分类问题。
