Faculty of Forest Resources and Environmental Management, Vietnam National University of Forestry, Xuan Mai, Chuong My, Hanoi, Vietnam. 2Faculty of Forestry, National University of Laos, Dong Dok Campus, Vientiane, Lao PDR. .
Faculty of Forest Resources and Environmental Management, Vietnam National University of Forestry, Xuan Mai, Chuong My, Hanoi, Vietnam. Center for Nature Conservation and Development, 5,56/119 Tu Lien Street, Tay Ho District, Ha Noi, Vietnam. .
Zootaxa. 2021 Dec 22;5082(6):553-571. doi: 10.11646/zootaxa.5082.6.3.
A new species of the Gekko (Japonigekko) japonicus group from Khammouane Province, central Laos is described based on morphological characters and molecular evidence. Morphologically, Gekko khunkhamensis sp. nov. can be distinguished from the remaining congeners by a combination of the following characters: size moderate (SVL 69.775.2 mm); nares in contact with rostral; internasals absent; postmentals enlarged; interorbital scales between anterior corners of the eyes 31 or 32; dorsal tubercles absent; ventrals between mental and cloacal slit 181185; midbody scales 127138; ventral scales 4245; subdigital lamellae on first toe 13 or 14, on fourth toe 14 or 15; tubercles on upper surface of fore and hind limbs absent; precloacal pores absent in the male and females; postcloacal tubercles 2; tubercles absent on dorsal surface of tail base; subcaudals distinctly enlarged; dorsal surface of body with five dark grey bands, which become irregular posteriorly. Genetically, the new species is placed in a clade, consisting of G. bonkowskii, G. nadenensis, G. scientiadventura, G. sengchanthavongi, and G. thakhekensis and differs from other congeners by at least 13% in terms of pairwise distance based on a fragment of the mitochondrial ND2 gene.
一种来自老挝中部甘蒙省的新物种，即 Khammouane 蛤蚧（Japonigekko）组，是基于形态特征和分子证据描述的。在形态上，Gekko khunkhamensis sp. nov. 可以通过以下特征的组合与其他近缘种区分开来：体型中等（SVL 69.775.2 毫米）；鼻孔与吻部接触；无鼻间鳞；后颏鳞增大；眼的前角之间的眶间鳞 31 或 32 个；无背刺；颏鳞和肛孔之间的腹鳞 181-1185 个；体鳞 127-138 个；腹鳞 42-45 个；第一趾的趾下瓣 13-14 个，第四趾的趾下瓣 14-15 个；四肢上的无刺；雌雄均无前肛孔；后肛棘 2 个；尾基部的背刺无；尾下鳞明显增大；身体背面有五条深灰色带，后部不规则。在遗传上，新物种位于一个分支中，包括 G. bonkowskii、G. nadenensis、G. scientiadventura、G. sengchanthavongi 和 G. thakhekensis，与其他近缘种相比，基于线粒体 ND2 基因片段的成对距离至少有 13%的差异。
