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Published: 2021-05-03

Gekko phuyenensis sp. nov. (Squamata: Gekkonidae), a new species from southern Vietnam

Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85 Tran Quoc Toan St., Dist. 3, Ho Chi Minh City, Department of Biology, Ho Chi Minh City University of Education, 280 An Duong Vuong St., Dist. 5, Ho Chi Minh City, Vietnam
Asian Turtle Program – Indo-Myanmar Conservation, R.1806, 18th F., CT1 Bac Ha C14 Building To Huu St., Nam Tu Liem Dist., Ha Noi, Vietnam.
Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia.
Centre for Biodiversity and Conservation Biology, Royal Ontario Museum, 100 Queen’s Park, Toronto, Canada.
Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85 Tran Quoc Toan St., Dist. 3, Ho Chi Minh City, Vietnam.
Reptilia Marbled gecko COI Gekko petricolus group Gekko grossmanni


A new species of the genus Gekko Laurenti, 1768 is described from Phu Yen Province, southern Vietnam based on morphological and molecular evidence. Gekko phuyenensis sp. nov. differs from other congeners by its moderate size, with a snout-vent length of 90.2–92.8 mm; nares in contact with rostral; internasal 1; interorbitals 35 or 36; ventrals 30–32; dorsal tubercle rows 9 or 10; precloacal pores 12 or 13 in males and precloacal pits 13 in female; subdigital lamellae under first finger 18–21, fourth finger 19 or 20, first toe 18–20, and fourth toe 21–23; subcaudals median enlarged; no webbing between toes; and the absence of tubercles on hind limbs. Molecular phylogenetic analyses of mitochondrial gene COI (681 bp) using the geckos from Phu Yen and its congeners in southern Vietnam resolve the new species as the sister lineage to G. cf. grossmanni from Khanh Hoa Province. Genetic distances between G. phuyenensis sp. nov. and its congeners in southern Vietnam range from 16.9–24.2%. The discovery of this new species raises the number of known species of Gekko in Vietnam to 14.



  1. Felsenstein, J. (2004) Inferring phylogenies, Sinauer Associates. Sunderland, MA, 664 pp.

    Fritz, U. (2002) Herpetology and herpetological type specimens at the Museum für Tierkunde Dresden with the bibliography of herpetological contributions by Fritz Jürgen Obst (Amphibian, Reptilia). Faunistische Abhandlungen, 23 (1), 3–34.

    Günther, R. (1994) A new species of the genus Gekko (Reptilia, Squamata, Gekkonidae) from southern Vietnam. Zoologische Anzeiger, 233, 57–67.

    Hillis, D.M. & Bull, J.J. (1993) An empirical test of bootstrapping as a method for assessing confidence in phylogenetic analysis. Systematic Biology, 42, 182–192.

    Hoang, D.T., Chernomor, O., von Haeseler, A., Minh, B.Q. & Vinh, L.S. (2018) UFBoot2: Improving the ultrafast bootstrap approximation. Molecular Biology and Evolution, 35, 518–522.

    Ivanova, N.V., Zemlak, T.S., Hanner, R.H. & Hebert, P.D. (2007) Universal primer cocktails for fish DNA barcoding. Molecular Ecology Notes, 7 (4), 544–548.

    Kumar, S., Stecher, G., Li, M., Knyaz, C. & Tamura, K. (2018) MEGA X: Molecular evolutionary genetics analysis across computing platforms. Molecular Biology and Evolution, 35 (6), 1547–1549.

    Kalyaanamoorthy, S., Minh, B.Q., Wong, T.K., von Haeseler, A. & Jermiin, L.S. (2017) ModelFinder: fast model selection for accurate phylogenetic estimates. Nature Methods, 14, 587.

    Laurenti, J.N. (1768) Specimen medicum, exhibens synopsin reptilium emendatam cum experimentis circa venena et antidota reptilium austracorum, quod authoritate et consensu. Joan. Thomae, Vienna, 217 pp.

    Luu, V.Q., Calame, T., Nguyen, T.Q., Le, M.D. & Ziegler, T. (2015) Morphological and molecular review of the Gekko diversity of Laos with descriptions of three new species. Zootaxa, 3986 (3), 279–306.

    Minh, Q., Nguyen, M.A.T. & von Haeseler, A. (2013) Ultrafast approximation for phylogenetic bootstrap. Molecular Biology and Evolution, 30, 1188–1195.

    Ngo, T.V., Bauer, A.M., Wood, Jr. P.L. & Grismer, J.L. (2009) A new species of Gekko Laurenti, 1768 (Squamata: Gekkonidae) from Dong Nai Province, southeastern Vietnam. Zootaxa, 2238 (1), 33–42.

    Ngo, T.V. & Gamble, T. (2010) A new species of Gekko (Squamata: Gekkonidae) from Tà Kóu Nature Reserve, Binh Thuan Province, southern Vietnam. Zootaxa, 2346, 17–28.

    Ngo, T.V. & Gamble, T. (2011) Gekko canaensis sp. nov. (Squamata: Gekkonidae), a new gecko from southern Vietnam. Zootaxa, 2890 (1), 53–64.

    Nguyen, S.N. (2010) A new poreless species of Gekko Laurenti, 1768 (Gekkonidae: Squamata) from An Giang Province, southern Vietnam. Zootaxa, 2501 (1), 54–60.

    Nguyen, S.N., Nguyen, V.D.H., Nguyen, L.T. & Murphy, R.W. (2019) A new skink of the genus Scincella Mittleman, 1950 (Squamata: Scincidae) from Ba Den Mountain, Tay Ninh Province, southern Vietnam. Zootaxa, 4648 (2), 273–286.

    Nguyen, S.V., Ho, C.T. & Nguyen, T.Q. (2009) Herpetofauna of Vietnam. Edition Chimaira, Frankfurt, 768 pp.

    Nguyen, T.Q., Schmitz, A. & Böhme, W. (2010) Gekko ulikovskii Darevsky & Orlov, 1994: a junior synonym of Gekko badenii Szczerbak & Nekrasova, 1994. Bonn Zoological Bulletin, 57, 15–17.

    Nguyen, L.T., Schmidt, H.A., von Haeseler, A. & Minh, B.Q. (2015) IQ-TREE: A fast and effective stochastic algorithm for estimating maximum likelihood phylogenies. Molecular Biology and Evolution, 32, 268–274.

    Nylander, J.A.A. (2004) MrModeltest. Version 2. Program distributed by the author, Evolutionary Biology Centre, Uppsala University, Uppsala. [program]

    Panitvong, N., Sumontha, M., Konlek, K. & Kunya, K. (2010) Gekko lauhachindai sp. nov., a new cave-dwelling gecko (Reptilia: Gekkonidae) from central Thailand. Zootaxa, 2671, 40–52.

    Phung, T.M. & Ziegler, T. (2011) Another new Gekko species (Squamata: Gekkonidae) from southern Vietnam. Zootaxa, 3129 (1), 51–61.

    Ronquist, R.R. & Huelsenbeck, J.P. (2003) MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics, 19, 1572–1574.

    Rösler, H, Bauer, A.M., Heinicke, M.P., Greenbaum, E., Jackman, T., Nguyen, T.Q. & Ziegler, T. (2011) Phylogeny, taxonomy, and zoogeography of the genus Gekko Laurenti, 1768 with the revalidation of G. reevesii Gray, 1831 (Sauria: Gekkonidae). Zootaxa, 2989 (1), 1–50.

    Rösler, H., Ineich, I., Wilms, T.M. & Böhme, W. (2012) Studies on the taxonomy of the Gekko vittatus Houttuyn, 1782 complex (Squamata: Gekkonidae) I. On the variability of G. vittatus Houttuyn, 1782 sensu lato, with the description of a new species from Palau Islands, Micronesia. Bonn zoological Bulletin, 61 (2), 241–254.

    Rujirawana, A., Fong, J.J., Ampai, N., Yodthong, N.S., Termprayoon, K. & Aowphol, A. (2019) A new karst-dwelling gecko of the Gekko petricolus group (Reptilia: Gekkonidae) from Phitsanulok Province, central Thailand. Journal of Natural History, 53, 557–576.

    Taylor, E.H. (1962) The amphibian fauna of Thailand. University of Kansas Science Bulletin, 43, 265–599.

    Thompson, J.D., Higgins, D.G. & Gibson, T.J. (1994) CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Research, 22, 4673–4680.

    Trifinopoulos, J., Nguyen, L.T., von Haeseler, A. & Minh, B.Q. (2016) W-IQ-TREE: a fast online phylogenetic tool for maximum likelihood analysis. Nucleic Acids Research, 44, W232–W235.

    Uetz, P., Freed, P. & Jirí, H. (2021) The Reptile Database. (accessed 3 March 2021)

    Wood, P.L., Guo, X., Travers, S.L., Su, Y.C., Olson, K.V., Bauer, A.M., Grismer, L.L., Siler, C.D., Moyle, R.G., Andersen, M.J. & Brown, R.M. (2020) Parachute geckos free fall into synonymy: Gekko phylogeny, and a new subgeneric classification, inferred from thousands of ultraconserved elements. Molecular Phylogenetics and Evolution, 146, 106731.