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Type: Article
Published: 2020-08-03
Page range: 511–532
Abstract views: 91
PDF downloaded: 4

A new species of Hemiphyllodactylus (Squamata: Gekkonidae) from Tuyen Quang Province, Vietnam

Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai Road, Hanoi, Vietnam.
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam.
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam.
Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai Road, Hanoi, Vietnam. Central Institute for Natural Resources and Environmental Studies, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, Vietnam. Department of Herpetology, American Museum of Natural History, Central Park West at 79th Street, New York, New York 10024.
AG Zoologischer Garten Köln, Riehler Strasse 173, D–50735 Cologne, Germany. Institute of Zoology, University of Cologne, Zülpicher Street 47b, D-50674 Cologne, Germany.
Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam.
Hemiphyllodactylus nahangensis sp. nov. limestone karst forest molecular phylogeny Na Hang District taxonomy Reptilia

Abstract

A new species of the gekkonid genus Hemiphyllodactylus is described from limestone karst forest of Tuyen Quang Province, northern Vietnam based on morphological differences and molecular divergence. Hemiphyllodactylus nahangensis sp. nov. is distinguished from the remaining congeners by having the unique combination of the following characters: a bisexual taxon; SVL of adults 41.4–43.6 mm; dorsal scale rows 18–23; ventral scale rows 9–13; chin scales bordering mental and first infralabial distinctly enlarged; 22–24 pore-bearing femoral and precloacal scales, in a continuous row, absent in females; digital lamella formula 3-4-5-4 (forefoot) and 4-5-5-5 (hindfoot); cloacal spur single, present in both sexes; dark lateral head stripe indistinct; postsacral mark cream and bearing anteriorly projecting arms. In phylogenetic analyses, the new species is placed in a clade that includes H. dushanensis, H. hongkongensis, H. huishuiensis, H. ngocsonensis and H. zugi. In terms of pairwise genetic distance, the new species is at least 5.9%–6.6% divergent from other congeners based on a fragment of the mitochondrial gene ND2.

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