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Published: 2021-02-22

A new species of Oligodon H. Boie in Fitzinger, 1826 (Squamata: Colubridae) from Hainan Island, China

Institute of Herpetology, Shenyang Normal University, Shenyang 110034, China
Institute of Herpetology, Shenyang Normal University, Shenyang 110034, China
Institute of Herpetology, Shenyang Normal University, Shenyang 110034, China Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
Institute of Herpetology, Shenyang Normal University, Shenyang 110034, China
Institute of Herpetology, Shenyang Normal University, Shenyang 110034, China
Wildlife Conservation Administration of Hainan Province, Haikou 570203, China.
Institute of Herpetology, Shenyang Normal University, Shenyang 110034, China
Reptilia Taxonomy Oligodon bivirgatus sp. nov. Kukri snake Skull Osteology


A new species of the kukri snake genus Oligodon H. Boie in Fitzinger, 1826 is described based on two specimens collected from Shangxi Nature Reserve, Hainan Island, China. Oligodon bivirgatus sp. nov. can be distinguished from its congeners by a unique combination of having 15/15/15 dorsal scale rows, eight maxillary teeth, divided nasal, 3 temporals (1+2), 7 supralabials and 7 infralabials; divided anal plate; reddish-brown dorsum with two distinct dark stripes, and reddish ventral surface (in life) with irregular dark blotches on edge cream. This is the first new Oligodon species described from a type-locality in Hainan Island of China.



  1. Ali, J.R. (2018) New explanation for elements of Hainan Island's biological assemblage may stretch things a little too far. Ecography, 41 (3), 457–460.

    Che, J., Jiang, K., Yan, F. & Zhang, Y.P. (2020) Amphibians and Reptiles in Tibet—Diversity and Evolution. Science Press, Beijing, pp. 696–705. [in Chinese with English species descriptions]

    Coleman, K., Rothfuss, L.A., Ota, H. & Kardong, K.V. (1993) Kinematics of egg–eating by the specialized Taiwan snake Oligodon formosanus (Colubridae). Journal of Herpetology, 27 (3), 320–327.

    Darriba, D., Taboada, G.L., Doallo, R. & Posada, D. (2012) jModelTest 2: more models, new heuristics and parallel computing. Nature Methods, 9 (8), 772.

    David, P., Vogel, G. & Rooijen, J.V. (2008) A revision of the Oligodon taeniatus (Günther, 1861) group (Squamata: Colubridae), with the description of three new species from the Indochinese Region. Zootaxa, 1965 (1), 1–49.

    David, P., Nguyen, T.Q., Nguyen, T.T., Jiang, K., Chen, T., Teynié, A. & Ziegler, T. (2012) A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from northern Vietnam, southern China and central Laos. Zootaxa, 3498 (1), 45–62.

    David, P. & Vogel, G. (2012) A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from Pulau Nias, Indonesia. Zootaxa, 3201 (1), 58–68.

    Dowling, H.G. (1951) A proposed standard system of counting ventrals in snakes. British Journal of Herpetology, 1 (5), 97–99.

    Farkas, B., Ziegler, T., Pham, C.T., Ong, A.V. & Fritz U. (2019) A new species of Pelodiscus from northeastern Indochina (Testudines, Trionychidae). Zookeys, 824, 71–86.

    Green, M.D. (2010) Molecular phylogeny of the snake genus Oligodon (Serpentes: Colubridae), with an annotated checklist and key. Master’s thesis, University of Toronto, Toronto, 161 pp.

    Green, M.D., Orlov, N.L. & Murphy, R.W. (2010) Toward a phylogeny of the kukri snakes, genus Oligodon. Asian Herpetological Research, 1 (1), 1–21.

    Hou, Y., Cui, X., Canul-Ku, M., Jin, S., Hasimoto-Beltran, R., Guo, Q. & Zhu, M. (2020) ADMorph: a 3d digital microfossil morphology dataset for deep learning. IEEE Access, 8, 148744–148756.

    IUCN Standards and Petitions Committee (2019) Guidelines for using and IUCN Red List categories and criteria. Version 14. Available from: (accessed 16 January 2021)

    Li, J.N., Liang, D., Wang, Y.Y., Guo, P., Huang, S. & Zhang P. (2020) A large-scale systematic framework of Chinese snakes based on a unified multilocus marker system. Molecular Phylogenetics and Evolution, 148, 106870.

    Li, Z.-X. [李致勋] (1958) 海南岛爬行纲动物的调查报告[On collections of reptiles from Hainan Island]. 动物学杂志 [Chinese Journal of Zoology], 2 (4), 234–239. [in Chinese]

    Liu, C.C., Hu, S.C., Fei, L. & Huang, C.C. (1973) On collections of amphibians from Hainan Island. Acta Zoologica Sinica, 19 (4), 385–404. [in Chinese with English Abstract]

    Luo, Y. & Li S. (2018) Cave Stedocys spitting spiders illuminate the history of the Himalayas and southeast Asia. Ecography, 41 (2), 414–423.

    Minton, S.A. & Anderson, J.A. (1963) Feeding habits of the kukri snake, Oligodon taeniolatus. Herpetologica, 19, 147.

    Neang, T., Grismer, L.L. & Daltry, J.C. (2012) A new species of kukri snake (Colubridae: Oligodon Fitzinger, 1826) from the Phnom Samkos Wildlife Sanctuary, Cardamom Mountains, southwest Cambodia. Zootaxa, 3388 (1), 41–55.

    Nguyen, T.Q., Schmitz, A., Nguyen, T.T., Orlov, N.L., Böhme, W. & Ziegler, T. (2011) Review of the genus Sphenomorphus Fitzinger, 1843 (Squamata: Sauria: Scincidae) in Vietnam, with description of a new species from northern Vietnam and southern China and the first record of Sphenomorphus mimicus Taylor, 1962 from Vietnam. Journal of Herpetology, 45 (2), 145–154.

    Nguyen, S.N., Nguyen, V.D.H., Le, S.H. & Murphy, R.W. (2016) A new species of kukri snake (Squamata: Colubridae: Oligodon Fitzinger, 1826) from Con Dao Islands, southern Vietnam. Zootaxa, 4139 (2), 261–273.

    Nguyen, S.N., Nguyen, L.T., Nguyen, V.D.H., Phan, H.T., Jiang, K. & Murphy R.W. (2017) A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from Cu Lao Cham Islands, central Vietnam. Zootaxa, 4286 (3), 333–346.

    Nguyen, H.N., Tran, B.V., Nguyen, L.H., Neang, T., Yushchenko, P.V. & Poyarkov, N.A. (2020) A new species of Oligodon Fitzinger, 1826 from the Langbian Plateau, southern Vietnam, with additional information on Oligodon annamensis Leviton, 1953 (Squamata: Colubridae). PeerJ, 8, e8332.

    Pauwels, O.S.G., Larsen, H., Suthanthangjai, W., David, P. & Sumontha M. (2017) A new kukri snake (Colubridae: Oligodon) from Hua Hin District, and the first record of O. deuvei from Thailand. Zootaxa, 4291 (3), 531–548.

    Peng, L., Wang, L., Ding, L., Zhu, Y., Luo, J., Yang, D., Huang, R., Lu, S. & Huang, S. (2018) A new species of the genus Sinomicrurus Slowinski, Boundy and Lawson, 2001 (Squamata: Elapidae) from Hainan Province, China. Asian Herpetological Research, 9 (2), 65–73.

    Ronquist, F., Teslenko, M., Van Der Mark, P., Ayres, D.L., Darling, A., Höhna, S., Larget, B., Liu, L., Suchard, M.A. & Huelsenbeck, J.P. (2012) MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology, 61 (3), 539–542.

    Shi, H.T., Zhao, E.M. & Wang, L.J. (2011) Amphibian and Reptile Fauna of Hainan. Science Press, Beijing, 285 pp. [in Chinese]

    Silvestro, D. & Michalak, I. (2012) RaxmlGUI: a graphical front-end for RAxML. Organisms Diversity and Evolution, 12, 335–337.

    Smith, M.A. (1923) On a collection of reptiles and batrachians from the Island of Hainan. The Journal of the Natural History Society of Siam, 6 (2), 195–212.

    Smith M.A. (1943) The Fauna of British India, Ceylon and Burma, including the whole of the Indo-Chinese Sub-Region. Reptilia and Amphibia. Vol. III. Serpentes. Taylor & Francis, London, xii + 583 pp.

    Sumontha, M., Kunya, K., Dangsri, S. & Pauwels, O.S.G. (2017) Oligodon saiyok, a new limestone-dwelling kukri snake (Serpentes: Colubridae) from Kanchanaburi Province, western Thailand. Zootaxa, 4294 (3), 316–328.

    Tamura, K., Stecher, G., Peterson, D., Filipski, A. & Kumar, S. (2013) MEGA6: molecular evolutionary genetics analysis, version 6.0. Molecular Biology and Evolution, 30, 2725–2729.

    Thompson, J.D., Gibson, T.J., Plewniak, F., Jeanmougin, F. & Higgins, D.G. (1997) The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Research, 25, 4876–4882.

    Uetz, P., Freed, P. & Hošek, J. (2021) The Reptile Database. Available from: (accessed 16 January 2021)

    Vassilieva, A.B., Geissler, P., Galoyan, E.A., Poyarkov Jr, N.A., Van Devender, R.W. & Böhme, W. (2013) A new species of Kukri Snake (Oligodon Fitzinger, 1826; Squamata: Colubridae) from the Cat Tien National Park, southern Vietnam. Zootaxa, 3702 (3), 233–246.

    Vassilieva, A.B. (2015) A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from coastal southern Vietnam. Zootaxa, 4058 (2), 211–226.

    Wang, K., Ren, J.L., Chen, H.M., Lyu, Z.T., Guo, X.G., Jiang, K., Chen, J.M., Li, J.T., Guo, P., Wang, Y.Y. & Che J. (2020) The updated checklists of amphibians and reptiles of China. Biodiversity Science, 28 (2), 189–218. [in Chinese with English Abstract]

    Xu, X. Su, Y.C., Ho, S.Y.W., Kuntner, M., Ono, H., Liu, F., Chang, C.C., Warrit, N., Sivayyapram, V., Aung, K.P.P., Pham, D.S., Norma-Rashid, Y. & Li, D. (2020) Phylogenomic analysis of ultraconserved elements resolves the evolutionary and biogeographic history of segmented trapdoor spiders. Systematic Biology, 2020, syaa098.

    Zhang, J., Jiang, K., Li, P.P., Hou, M. & Rao, D.Q. (2011) Taxonomic revisions on genus Oligodon of China (Serpentes, Colubridae). Acta Zootaxonomica Sinica, 36 (2), 423–430. [in Chinese with English Abstract]

    Zhao, E.M. (1990) Herpetofauna and zoogeography of Hainan Island. In: Zhao, E.M. (Ed.), From Water onto Land: A Volume Issued to Commemorate the Ninetieth Birthday of the Late Professor Liu Cheng-Zhao. China Forestry Publishing House, Beijing, pp. 354–363. [in Chinese with English Abstract]

    Zhao, E.M. (2006) Snakes of China. Vol. I. Anhui Science and Technology Publishing House, Hefei, Anhui, pp. 223–235. [in Chinese]

    Zeng, Z., Liang, D., Li, J., Lyu, Z., Wang, Y. & Zhang, P. (2020) Phylogenetic relationships of the Chinese torrent frogs (Ranidae: Amolops) revealed by phylogenomic analyses of AFLP-Capture data. Molecular Phylogenetics and Evolution, 146, 106753.

    Zhou, R.B., Wang, N., Chen, B. & Liang, B. (2018) Morphological evidence uncovers a new species of Goniurosaurus (Squamata: Eublepharidae) from the Hainan Island, China. Zootaxa, 4369 (2), 281–291.

    Zhu, H. (2016) Biogeographical evidences help revealing the origin of Hainan Island. PLoS ONE, 11 (4), e0151941.

    Zhu, X.Y., Shen, C.Z., Liu, Y.F., Chen, L., Li, Z. & He, Z.Q. (2020) A new species of Goniurosaurus from Hainan Island, China based on molecular and morphological data (Squamata: Sauria: Eublepharidae). Zootaxa, 4772 (2), 349–360.