Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, Vietnam; .
Forest Resources and Environment Center, 300 Ngoc Hoi Road, Thanh Tri, Hanoi 10000, Vietnam; .
Zootaxa. 2022 Jun 8;5150(3):333-356. doi: 10.11646/zootaxa.5150.3.2.
A new species of Xenophrys is described from Truong Son Range in Central Vietnam based on morphological and molecular differences. The new species is distinguishable from its congeners by a combination of the following characters: Size medium (SVL 58.871.4 mm in males, 65.687.3 mm in females); tympanum distinct; vomerine teeth present; tongue notched posteriorly; external vocal sac absent; toes with rudimentary webbing; subarticular tubercles absent, lateral fringes narrow along toes; nuptial pads absent in males; dorsal skin of body with weak granules; flank with small tubercles; dorsum with a dorsal ridge in >-< shape; dorsolateral folds prominent; dorsal surface from reddish brown to grayish brown with a brown triangle between the eyes, and a dark brown marking edged along dorsal ridge on the back; and small white spots present on flank and back of thigh. In the phylogenetic analyses, the new species is nested within the genus Xenophrys with interspecific uncorrected genetic p-distances (16S rRNA gene) from 2.22.8% (compared with Xenophrys maosonensis) to 14.414.7% (compared with Xenophrys yeae).
描述了来自越南北中部栋榜山脉的一个 Xenophrys 新种，基于形态和分子差异。新种与同属种的区别在于以下特征的组合：体型中等（雄性 SVL 58.871.4 毫米，雌性 65.687.3 毫米）；鼓膜明显；犁骨齿存在；舌后缘有缺刻；无外声囊；脚趾有微弱的蹼；无跗跖关节下瘤，趾侧缘的侧缘条纹狭窄；雄性无婚垫；体背皮肤有微弱的颗粒；体侧有小丘；背部呈“>-<”形的背嵴；背侧褶明显；背部从红棕色到灰棕色，两眼之间有一个棕色三角形，背部背嵴上有一个深褐色斑纹；体侧和大腿背面有小白点。在系统发育分析中，新种嵌套在 Xenophrys 属内，种间未校正的遗传距离（16S rRNA 基因）为 2.22.8%（与 Xenophrys maosonensis 相比）到 14.414.7%（与 Xenophrys yeae 相比）。
