Ngo Hanh Thi, DO Quyen Hanh, DO Dang Trong, Pham Cuong The, Bui Thanh Phuong Thi, Ho Anh Thi Ngoc, Nguyen Truong Quang, Ziegler Thomas, LE Minh Duc
Institute of Zoology; University of Cologne; Zülpicher Str. 47b; D-50674 Cologne; Germany; AG Zoologischer Garten Köln; Riehler Str. 173; D-50735 Cologne; Germany; Central Institute for Natural Resources and Environmental Studies; Vietnam National University; Hanoi; 19 Le Thanh Tong Road; Hanoi; Vietnam..
Institute of Ecology and Biological Resources; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet Road; Hanoi 10072; Vietnam..
Zootaxa. 2024 Apr 29;5446(1):105-120. doi: 10.11646/zootaxa.5446.1.6.
We describe a new species of the Cyrtodactylus irregularis complex based on six adult specimens from Phu Cat District, Binh Dinh Province, Vietnam. Cyrtodactylus binhdinhensis sp. nov. is morphologically distinguished from the remaining congeners of the C. irregularis group by a combination of the following characteristics: Size medium (SVL up to 80.4 mm); nasal scales 4; internasal single; ventral scales in 39-42 longitudinal rows at midbody; ventrolateral folds present or absent without interspersed tubercles; precloacal pores 6 or 7 in males; 5 or 6 enlarged femoral scales on each thigh; femoral pores 10 in males; postcloacal tubercles 2-4; lamellae under toe IV 18-21; dorsal pattern consisting of slightly clear transverse banding formed by shaped dark brown bands, a continuous neckband with U-shape or triangle shape in the middle, dorsal head surface with small dark brown blotches; subcaudal scales transversely enlarged. In the phylogenetic analyses, the new species is recovered as a sister taxon to C. badenensis with approximately 15.34-16.15% genetic divergence between the two species based on a fragment of the COI gene.
我们基于来自越南平定省富吉县的6个成年标本，描述了弯脚虎属（Cyrtodactylus）不规则弯脚虎种群（Cyrtodactylus irregularis complex）中的一个新物种。新物种平定弯脚虎（Cyrtodactylus binhdinhensis sp. nov.）在形态上与不规则弯脚虎种群的其他同属物种有别，具有以下综合特征：体型中等（头体长可达80.4毫米）；鼻鳞4枚；鼻间鳞单枚；身体中部腹鳞有39 - 42纵行；腹外侧褶存在或缺失，无散布的瘤；雄性泄殖腔前孔6或7个；每条大腿上有5或6枚扩大的股鳞；雄性股孔10个；泄殖腔后瘤2 - 4个；第四趾下瓣18 - 21枚；背部图案由形状略清晰的深褐色横带组成，中间有一个U形或三角形的连续颈环，头部背面有小的深褐色斑点；尾下鳞横向扩大。在系统发育分析中，基于细胞色素氧化酶亚基I（COI）基因片段，该新物种被发现是巴登弯脚虎（C. badenensis）的姐妹分类单元，两个物种之间的遗传差异约为15.34 - 16.15%。
