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Peer-reviewedCC BY 4.0Biodiversity Data Journal

Additional records of Lycodon yunnanensis (Werner, 1922) and range extension of Lycodon truongi Nguyen, Duong, Wood & Grismer, 2022 (Reptilia, Squamata, Colubridae) from Vietnam

  • Anh Van Pham1
  • Cuong The Pham2,3
  • Hanh Thi Ngo4
  • Ha L.T. Trinh5
  • Thuy Xuan Dao6
  • Thai Hong Pham6
  • Nhiet Ba Pham6
  • Chien Anh Dao6
  • Minh Duc Le7
7 affiliations
  1. 1Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, Vietnam Faculty of Environmental Sciences, University of Science, Vietnam National University Hanoi Vietnam https://ror.org/02jmfj006
  2. 2Institute of Biology, Vietnam Academy of Science and Technology, Hanoi, Vietnam Institute of Biology, Vietnam Academy of Science and Technology Hanoi Vietnam https://ror.org/02wsd5p50
  3. 3Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam Graduate University of Science and Technology, Vietnam Academy of Science and Technology Hanoi Vietnam https://ror.org/02wsd5p50
  4. 4VNU-Central Institute for Natural Resources and Environmental Studies, Hanoi, Vietnam VNU-Central Institute for Natural Resources and Environmental Studies Hanoi Vietnam https://ror.org/02k550c65
  5. 5Department of Oceanic Science and Technology, Faculty of Hydrology, Meteorology, and Oceanography, University of Science, Vietnam National University, Hanoi, Hanoi, Vietnam Department of Oceanic Science and Technology, Faculty of Hydrology, Meteorology, and Oceanography, University of Science, Vietnam National University, Hanoi Hanoi Vietnam https://ror.org/02jmfj006
  6. 6Chu Mom Ray National Park, Sa Thay, Vietnam Chu Mom Ray National Park Sa Thay Vietnam
  7. 7Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, Hanoi, Vietnam Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi Hanoi Vietnam https://ror.org/02jmfj006
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Abstract

Background: Vietnam is home to 19 species of wolf snakes, genus Lycodon. Over the last five years, six new species have been discovered in the country.

New information: Lycodon yunnanensis (Werner) is reported for the first time from Ha Tinh Province, Vietnam. Genetic analysis of the mitochondrial cytochrome b (cytb) and cytochrome c oxidase subunit I (COI) fragments shows that their genetic distances are below 1.65% and 2.89%, respectively. In addition, new records of Lycodon truongi Nguyen, Duong, Wood & Grismer are reported from central Vietnam, based on eight specimens collected in Da Nang City and Quang Ngai Province. Although the newly-collected specimens exhibit some morphological variations from the holotype specimen, the genetic divergence between samples from the populations is estimated to be less than 2.0%, based on a fragment of cytb.

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Cite

BibTeXRIS
BibTeX
@article{pham2026additional,
  title = {{Additional records of Lycodon yunnanensis (Werner, 1922) and range extension of Lycodon truongi Nguyen, Duong, Wood & Grismer, 2022 (Reptilia, Squamata, Colubridae) from Vietnam}},
  author = {Anh Van Pham and Cuong The Pham and Hanh Thi Ngo and Ha L.T. Trinh and Thuy Xuan Dao and Thai Hong Pham and Nhiet Ba Pham and Chien Anh Dao and Minh Duc Le},
  journal = {Biodiversity Data Journal},
  year = {2026},
  month = oct,
  doi = {10.3897/bdj.14.e189836},
  url = {https://doi.org/10.3897/bdj.14.e189836},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Additional records of Lycodon yunnanensis (Werner, 1922) and range extension of Lycodon truongi Nguyen, Duong, Wood & Grismer, 2022 (Reptilia, Squamata, Colubridae) from Vietnam
AU  - Anh Van Pham
AU  - Cuong The Pham
AU  - Hanh Thi Ngo
AU  - Ha L.T. Trinh
AU  - Thuy Xuan Dao
AU  - Thai Hong Pham
AU  - Nhiet Ba Pham
AU  - Chien Anh Dao
AU  - Minh Duc Le
PY  - 2026
DA  - 2026/10/23
JO  - Biodiversity Data Journal
DO  - 10.3897/bdj.14.e189836
UR  - https://doi.org/10.3897/bdj.14.e189836
AB  - Background: Vietnam is home to 19 species of wolf snakes, genus Lycodon. Over the last five years, six new species have been discovered in the country.  New information: Lycodon yunnanensis (Werner) is reported for the first time from Ha Tinh Province, Vietnam. Genetic analysis of the mitochondrial cytochrome b (cytb) and cytochrome c oxidase subunit I (COI) fragments shows that their genetic distances are below 1.65% and 2.89%, respectively. In addition, new records of Lycodon truongi Nguyen, Duong, Wood & Grismer are reported from central Vietnam, based on eight specimens collected in Da Nang City and Quang Ngai Province. Although the newly-collected specimens exhibit some morphological variations from the holotype specimen, the genetic divergence between samples from the populations is estimated to be less than 2.0%, based on a fragment of cytb.
SN  - 1314-2828
ER  -