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Issue: Vol. 5689 No. 2: 3 Sept. 2025
Type: Article
Published: 2025-09-03
DOI: 10.11646/zootaxa.5689.2.5
Page range: 333-360
Abstract views: 157
PDF downloaded: 8

A new species of the Cyrtodactylus irregularis group (Squamata: Gekkonidae) from Chu Yang Sin National Park, Dak Lak Province, Central Highlands of Vietnam

Faculty of Forest Resources and Environmental Management; Vietnam National University of Forestry; Xuan Mai; Chuong My; Hanoi; Vietnam.
Faculty of Forest Resources and Environmental Management; Vietnam National University of Forestry; Xuan Mai; Chuong My; Hanoi; Vietnam.
Faculty of Forest Resources and Environmental Management; Vietnam National University of Forestry; Xuan Mai; Chuong My; Hanoi; Vietnam.
College of Forestry Biotechnology; Vietnam National University of Forestry; Hanoi; Vietnam.
Chu Yang Sin National Park; DakLak Province.
Herpetology Laboratory; Department of Biology; La Sierra University; 4500 Riverwalk Parkway; Riverside; California 92515 USA; Department of Herpetology; San Diego Natural History Museum; PO Box 121390; San Diego; California; 92112; USA.
Faculty of Forest Resources and Environmental Management; Vietnam National University of Forestry; Xuan Mai; Chuong My; Hanoi; Vietnam.
Reptilia Cyrtodactylus chuyangsinensis sp. nov. molecular phylogenetics integrative taxonomy Southeast Asia

Abstract

A new species is described based on seven specimens of Cyrtodactylus (Family: Gekkonidae) collected from the Chu Yang Sin National Park, Dak Lak Province, Central Highlands, Vietnam. The new species is placed within the Cyrtodactylus irregularis group and can be distinguished from its closest related species and other congeners of the group by the following combination of morphological characters: a maximum SVL 92.3 mm; supralabials 10–12; infralabials 8–10; dorsal tubercle rows at midbody 12–15; ventral scale rows 38–48; subdigital lamellae on the fourth toe 16–21; enlarged femoral scales from each thigh 6–9; enlarged precloacal scales 19–24; precloacal pores in males seven or eight and females 0–6; enlarged subcaudals lacking; small, irregularly shaped dark-brown blotches on top of head; a slender, dark-colored V shaped nuchal loop with a concave anterior border and convex posterior border extending across the nape to the posterior margins of the orbits; dorsal body banding divided into paravertebral elements; dark-colored dorsal body bands narrower than pale dorsal interspaces and irregularly shaped. Phylogenetic analyses indicate that the new species is closely related to C. phnomchiensis and C. ziegleri, with a minimum genetic distance of 7.0% from these species.

 

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How to Cite

Nguyen, T.H., Nguyen, V.Q.H., Nguyen, T.T., Ha, H.B., Le, S.V., Grismer, L.L. & Luu, V.Q. (2025) A new species of the Cyrtodactylus irregularis group (Squamata: Gekkonidae) from Chu Yang Sin National Park, Dak Lak Province, Central Highlands of Vietnam. Zootaxa, 5689 (2), 333–360. https://doi.org/10.11646/zootaxa.5689.2.5