{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T01:11:06Z","timestamp":1792804266929,"version":"4.5.0"},"reference-count":1,"publisher":"Magnolia Press","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zootaxa"],"abstract":"We describe a new species of the genus Lycodon based on an adult male specimen from Thanh Hoa Province, Vietnam. Lycodon namdongensis sp. nov. is differentiated from its congeners by a combination of the following characters: dorsal scales in 17\u221217\u221215 rows, all smooth; supralabials 8; infralabials 10; one large loreal on each side, separated from the eye; cloacal single; ventral scales 218 (plus two preventral scales); subcaudals 85, paired; a total length of 723 mm; tail \/ total length ratio 0.205; dorsal head pattern whitish grey; dorsal surface of body with 23 narrow greyish cream bands; dorsal surface of tail with 14 cream bands; ventral surface of body mostly cream with a few small dark spots posteriorly; ventral surface of tail dark grey. Based on molecular comparisons, Lycodon namdongensis sp. nov. is recovered as a sister species to L. futsingensis with strong support values from all three analyses. The new species is at least 6.5% genetically divergent from other species within this clade as shown by a fragment of more than 1000 pbs of the mitochondrial cytochrome b. This discovery increases the number of Lycodon species known from Vietnam to 15.\u00a0<\/jats:p>","DOI":"10.11646\/zootaxa.4586.2.3","type":"journal-article","created":{"date-parts":[[2019,4,17]],"date-time":"2019-04-17T02:16:16Z","timestamp":1555467376000},"source":"Crossref","is-referenced-by-count":11,"title":["A new species of Lycodon Boie, 1826 (Serpentes: Colubridae) from Thanh Hoa Province, Vietnam\u00a0"],"prefix":"10.11646","volume":"4586","author":[{"given":"VINH QUANG","family":"LUU","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"THOMAS","family":"ZIEGLER","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"NGHIA VAN","family":"HA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"MINH DUC","family":"LE","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"TUOI THI","family":"HOANG","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"4913","published-online":{"date-parts":[[2019,4,17]]},"reference":[{"key":"45454","unstructured":"

Boulenger, G.A. (1893) Catalogue of the snakes in the British Museum (Natural History). Vol. I<\/em>. Taylor and Francis, London, 448 pp.<\/p>

Bourret, R. (1935) Notes herp\u00e9tologiques sur l\u2019Indochine fran\u00e7aise. IX. Les Serpents de Chapa. Bulletin g\u00e9n\u00e9ral de l\u2019Instruction publique<\/em>, 14 (1934\u22121935), 7 (Mars), 239\u2212251 (Reprint: 5\u221217).<\/p>

Burbrink, F.T., Lawson, R. & Slowinski, J.B. (2000) Mitochondrial DNA phylogeography of the polytypic North American rat snake (Elaphe obsoleta<\/em>): a critique of the subspecies concept. Evolution<\/em>, 54, 2107\u20132118.<\/p>

https:\/\/doi.org\/10.1111\/j.0014-3820.2000.tb01253.x<\/p>

David, P. & Vogel, G. (1996) The snakes of Sumatra. An annotated checklist and key with natural history notes<\/em>. Chimaira, Frankfurt am Main, 259 pp.<\/p>

Deuve, J. (1970) Serpents du Laos. M\u00e9moires de l\u2019ORSTOM<\/em>, Paris, 39, 1\u2013251.<\/p>

Do, D.T., Ngo, C.D., Ziegler, T. & Nguyen, T.Q. (2016) New records of colubrid snakes (Squamata: Serpentes: Colubridae) and an updated list of snakes from Phu Yen Province. Proceedings of the 3<\/em>rd<\/sup> National Scientific Conference on Amphibians and Reptiles in Vietnam, 2016, 25\u221231.<\/p>

Do, D.T., Ngo, C.D., Ziegler, T. & Nguyen, T.Q. (2017) First record of Lycodon cardamomensis<\/em> Daltry et W\u00fcster, 2002 (Squamata: Colubridae) from Vietnam. Russian Journal of Herpetology<\/em>, 24 (2), 167\u2013170.<\/p>

Dowling, H.G. (1951) A proposed standard system of counting ventral in snakes. Journal of Herpetology<\/em>, 1, 97\u221299.<\/p>

Figueroa, A., McKelvy, A.D., Grismer, L.L., Bell, C.D. & Lailvaux, S.P. (2016) A species-level phylogeny of extant snakes with description of a new colubrid subfamily and genus. PLOS ONE<\/em>, 11 (9), e0161070.<\/p>

https:\/\/doi.org\/10.1371\/journal.pone.0161070<\/p>

Gawor, A., Pham, C.T., Nguyen, T.Q., Nguyen, T.T., Schmitz, A. & Ziegler, T. (2016) The herpetofauna of the Bai Tu Long National Park, northeastern Vietnam. Salamandra<\/em>, 52 (1), 23\u201341.<\/p>

Geissler, P., Nguyen, T.Q., Poyarkov, N.A. & B\u00f6hme, W. (2011) New records of snakes from Cat Tien National Park, Dong Nai and Lam Dong provinces, southern Vietnam. Bonn zoological Bulletin<\/em>, 60 (1), 9\u201316.<\/p>

Grismer, L.L. Quah, E.S.H., Anuar, S., Muin, M.A., Wood, P.L. Jr. & Aziza, S. (2014) A diminutive new species of cave-dwelling Wolf Snake (Colubridae: Lycodon<\/em> Boie, 1826) from Peninsular Malaysia. Zootaxa<\/em>, 3815 (1), 051\u2212067.<\/p>

https:\/\/doi.org\/10.11646\/zootaxa.3815.1.3<\/p>

Guo, P., Zhang, L., Liu, Q., Li, C., Pyron, R.A., Jiang, K. & Burbrink, F.T. (2013) Lycodon<\/em> and Dinodon<\/em>: one genus or two? Evidence from molecular phylogenetics and morphological comparisons. Molecular Phylogenetics and Evolution<\/em>, 68, 144\u2212149.<\/p>

https:\/\/doi.org\/10.1016\/j.ympev.2013.03.008<\/p>

Hu, S., Zhao, E. & Huang, Z. (1975) Three new species of reptiles from Hainan Island, Guangdong Province (In Chinese with English abstract). Acta zoologica Sinica<\/em>, 21 (4), 379\u2013384. [English translation of this paper was provided by Akihiro Koshikawa, 1982, Smithsonian herpetological Information Service, 53, 1\u20139]<\/p>

Jestrzemski, D., Sch\u00fctz, S., Nguyen, T.Q. & Ziegler, T. (2013) A survey of amphibians and reptiles in Chu Mom Ray National Park, Vietnam, with implications for herpetofaunal conservation. Asian Journal of Conservation Biology<\/em>, 2 (2), 88\u2013110.<\/p>

Lanza, B. (1999) A new species of Lycodon <\/em>from the Philippines, with a key to the genus (Reptilia Serpentes Colubridae). Tropical Zoology<\/em>, 12, 89\u2212104.<\/p>

https:\/\/doi.org\/10.1080\/03946975.1999.10539380<\/p>

Le, M., Raxworthy, C.J., McCord, W.P. & Mertz, L. (2006) A molecular phylogeny of tortoises (Testudines: Testudinidae) based on mitochondrial and nuclear genes. Molecular Phylogenetics and Evolution<\/em>, 40, 517\u2212531.<\/p>

https:\/\/doi.org\/10.1016\/j.ympev.2006.03.003<\/p>

Luu, V.Q., Bonkowski, M., Nguyen, T.Q., Le, M.D., Calame, T. & Ziegler, T. (2018) A new species of Lycodon <\/em>Boie, 1826 (Serpentes: Colubridae) from central Laos. Revue Suisse de Zoologie<\/em>, 125 (2), 263\u2212267.<\/p>

Luu, V.Q., Nguyen, T.Q., Calame, T., Hoang, T.T., Southichack, S., Bonkowski, M. & Ziegler, T. (2013a) New country records of reptiles from Laos. Biodiversity Data Journal<\/em>, 1, 1\u221214.<\/p>

https:\/\/doi.org\/10.3897\/BDJ.1.e1015<\/p>

Luu, V.Q., Nguyen, T.Q., Pham C.T., Dang, K.N., Vu, T.N., Miskovic, S., Bonkowski, M. & Ziegler, T. (2013b) No end in sight? Further new records of amphibians and reptiles from Phong Nha-Ke Bang National Park, QuangBinh Province, Vietnam. Biodiversity Journal<\/em>, 4, 285\u2013300.<\/p>

Maki, M. (1931) A monograph of the snakes of Japan<\/em>. Dai-ichi Bhobo, Tokyo, 247 pp.<\/p>

Neang, T., Hartmann, T., Hun, S., Souter, N.J. & Furey, N.M. (2014) A new species of wolf snake (Colubridae: Lycodon<\/em> Fitzinger, 1826) from Phnom Samkos Wildlife Sanctuary, Cardamom Mountains, southwest Cambodia. Zootaxa<\/em>, 3814 (1), 068\u2212080.<\/p>

https:\/\/doi.org\/10.11646\/zootaxa.3814.1.3<\/p>

Ngo, C.D. & Duong, L.D. (2016) Species composition of colubrid snakes (Reptilia: Squamata: Serpentes: Colubridae) in Binh Dinh Province. Proceedings of the 3<\/em>rd<\/sup> National Scientific Conference on Amphibians and Reptiles in Vietnam, 60\u221266. [in Vietnamese]<\/p>

Nguyen, S.V., Ho, C.T. & Nguyen, T.Q. (2009) Herpetofauna of Vietnam<\/em>. Edition Chimaira, Frankfurt am Main, 768 pp.<\/p>

Nguyen, T.V., Pham, C.T. & Nguyen, T.Q. (2016) New records and an updated list of snakes (Squamata: Serpentes) from Xuan Lien nature reserve, Thanh Hoa province, Vietnam. Journal of Biology<\/em>, 38 (3), 324\u2212332.<\/p>

https:\/\/doi.org\/10.15625\/0866-7160\/v38n3.8448.<\/p>

Nguyen, L.-T., Schmidt, H.A., von Haeseler, A. & Bui, M.Q. (2015) IQ-TREE: A fast and effective stochastic algorithm for estimating maximum likelihood phylogenies. Molecular Biology and Evolution<\/em>, 32, 268\u2212274.<\/p>

https:\/\/doi.org\/10.1093\/molbev\/msu300<\/p>

Orlov, N.L., Nguyen, T.T., Nazarov, R.A., Melnikov, D.A. (2011) The northernmost record of colubrid snake Dryocalamus davisonii<\/em> (Blanford, 1878) [Serpentes: Colubridae: Colubrinae]. Russian Journal of Herpetology<\/em> 18 (2), 154\u2013156.<\/p>

Orlov, N. & Ryabov, S.A. (2004) Revalidization and change of taxonomic status of Dinodon rufozonatus meridionale<\/em> Bourret, 1935 (Serpentes: Colubridae: Colubrinae). Russian Journal of Herpetology<\/em>, 11 (3), 181\u2212197.<\/p>

Pham, A.V., Pham, C.T., Hoang, N.V., Ziegler, T. & Nguyen, T.Q. (2017) New records of amphibians and reptiles from Ha Giang Province, Vietnam. Herpetology Notes<\/em>, 10, 183\u2212191.<\/p>

Phan, H.T., Nguyen, S.L.H., Dinh, A.T.P. & Le, D.T. (2014) New distribution records of five snake species (Squamata: Serpentes) from Quang Nam Province. Journal of Science Vietnam National University, Natural Sciences and Technology<\/em>, <\/em>30 (1S), 324\u2212332. [in Vietnamese]<\/p>

Posada, D., & Crandall, K.A. (1998) MODELTEST: testing the model of DNA substitution. Bioinformatics<\/em>, 14, 817\u2013818.<\/p>

https:\/\/doi.org\/10.1093\/bioinformatics\/14.9.817<\/p>

Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D.L., Darling, A., H\u00f6hna, 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<\/em>, <\/em>61, 539\u2013542.<\/p>

https:\/\/doi.org\/10.1093\/sysbio\/sys029<\/p>

Siler, C.D., Oliveros, C.H., Santanen, A. & Brown, R.M. (2013) Multilocus phylogeny reveals unexpected diversification patterns in Asian Wolf Snakes (Genus Lycodon<\/em>). Zoologica Scripta<\/em>,<\/em> 42, 262\u2212277.<\/p>

https:\/\/doi.org\/10.1111\/zsc.12007<\/p>

Smith, M.A. (1943) The fauna of British India, Ceylon and Burma, including the whole of the Indo-chinese subregion. Reptilia and Amphibia. Vol. III. Serpentes<\/em>. Taylor & Francis, London, xii + 583 pp.<\/p>

Swofford, D.L. (2001) PAUP*. Phylogenetic Analysis Using Parsimony<\/em> (* and Other Methods<\/em>), version 4<\/em>. Sinauer Associates, Sunderland, Massachusetts.<\/p>

Thompson, J.D., Gibson, T.J., Plewniak, F., Jeanmougin, F. & Higgins, D.G. (1997) The ClustalX windows interface: Flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Research<\/em>, 25, 4876\u22124882.<\/p>

https:\/\/doi.org\/10.1093\/nar\/25.24.4876<\/p>

Uetz, P., Freed, P. & Ho\u0161ek, J. (2018) The Reptile Database<\/em>. available from: http:\/\/www.reptile-database.org (accessed 25 June 2018)<\/p>

Vassilieva, A.B., Galoyan, E.A., Poyarkov, N.A. Jr. & Geissler, P. (2016) A Photographic Field Guide to the Amphibians and Reptiles of the Lowland Monsoon Forests of Southern Vietnam<\/em>. Chimaira, Frankfurt am Main, 324 pp.<\/p>

Vogel, G. & David, P. (2010) A new species of the genus Lycodon<\/em> (Boie, 1826) from Yunnan Province, China (Serpentes: Colubridae). Bonn zoological Bulletin<\/em>, 57 (2), 289\u2212296.<\/p>

Vogel, G., David, P., Pauwels, O.S.G., Sumontha, M., Norval, G., Hendrix, R., Vu, N.T. & Ziegler, T. (2009) A revision of Lycodon ruhstrati<\/em> (Fischer 1886) auctorum (Squamata Colubridae), with the description of a new species from Thailand and a new subspecies from the Asian mainland. Tropical Zoology<\/em>, 22, 131\u2212182.<\/p>

Vogel, G. & Luo, J. (2011) A new species of the genus Lycodon <\/em>(Boie, 1826) from the southwestern mountains of China (Squamata: Colubridae). Zootaxa<\/em>, 2807 (1), 29\u221240.<\/p>

https:\/\/doi.org\/10.11646\/zootaxa.2807.1.2<\/p>

Vogel, G., Nguyen, T.Q., Kingsada, P. & Ziegler, T. (2012) A new species of the genus Lycodon<\/em> Boie, 1826 from Laos (Squamata: Colubridae). North-Western Journal of Zoology<\/em>,<\/em> 8, 344\u2212352.<\/p>

Wostl, E., Hamidy, A., Kurniawan, N. & Smith, E.N. (2017) A new species of Wolf Snake of the genus Lycodon<\/em> H. Boie in Fitzinger (Squamata: Colubridae) from the Aceh Province of northern Sumatra, Indonesia. Zootaxa<\/em>, 4276 (4), 539\u2013553.<\/p>

https:\/\/doi.org\/10.11646\/zootaxa.4276.4.6<\/p>

Zhang, J., Jiang, K., Vogel, G. & Rao, D. (2011) A new species of the genus Lycodon<\/em> (Squamata, Colubridae) from Sichuan Province, China. Zootaxa<\/em>, 2982, 59\u221268.<\/p>

Ziegler, T., Hendrix, R., Vu, T.N., Vogt, M., Forster, B. & Dang, K.N. (2007) The diversity of a snake community in a karst forest ecosystem in the central Truong Son, Vietnam, with an identification key. Zootaxa<\/em>, 1493, 1\u221240.<\/p>

Ziegler, T., Tran, D.T.A., Nguyen, T.Q., Perl, R.G.B., Wirk, L., Kulisch, M., Lehmann, T., Rauhaus, A., Nguyen, T.T., Le, Q.K. & Vu, T.N. (2014) New amphibian and reptile records from Ha Giang Province, northern Vietnam, Herpetology Notes<\/em>, 7, 185\u2013201.<\/p>

<\/p>

<\/p>"}],"container-title":["Zootaxa"],"original-title":[],"link":[{"URL":"https:\/\/www.mapress.com\/zt\/article\/download\/zootaxa.4586.2.3\/23602","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.mapress.com\/zt\/article\/download\/zootaxa.4586.2.3\/23602","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,4,30]],"date-time":"2023-04-30T21:58:17Z","timestamp":1682891897000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mapress.com\/zt\/article\/view\/zootaxa.4586.2.3"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,4,17]]},"references-count":1,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2019,4,17]]}},"URL":"https:\/\/doi.org\/10.11646\/zootaxa.4586.2.3","relation":{},"ISSN":["1175-5334","1175-5326"],"issn-type":[{"value":"1175-5334","type":"electronic"},{"value":"1175-5326","type":"print"}],"subject":[],"published":{"date-parts":[[2019,4,17]]}}}