动物学研究2023，Vol.44Issue(6) ：1039-1051.DOI:10.24272/j.issn.2095-8137.2023.062

Hiding on jagged karst pinnacles:A new microendemic genus and species of a limestone-dwelling agamid lizard(Squamata:Agamidae:Draconinae)from Khammouan Province,Laos

Saly Sitthivong Peter Brakels Santi Xayyasith Nathana?l Maury Sabira Idiiatullina Parinya Pawangkhanant Kai Wang Tan Van Nguyen Nikolay A.Poyarkov
动物学研究2023，Vol.44Issue(6) ：1039-1051.DOI:10.24272/j.issn.2095-8137.2023.062
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Hiding on jagged karst pinnacles:A new microendemic genus and species of a limestone-dwelling agamid lizard(Squamata:Agamidae:Draconinae)from Khammouan Province,Laos

Saly Sitthivong 1Peter Brakels 2Santi Xayyasith 3Nathana?l Maury 4Sabira Idiiatullina 5Parinya Pawangkhanant 6Kai Wang 7Tan Van Nguyen 8Nikolay A.Poyarkov9
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作者信息

  • 1. Faculty of Forestry,National University of Laos,Vientiane 01170,Lao PDR
  • 2. IUCN Laos PDR,Vientiane 01160,Lao PDR
  • 3. Faculty of Environmental Sciences,National University of Laos,Vientiane 01170,Lao PDR
  • 4. Chelonian Conservation Center Laos,World Encyclopedia of Herpetofauna,Vientiane 01000,Lao PDR
  • 5. Department of Vertebrate Zoology,Biological Faculty,Lomonosov Moscow State University,Moscow 119234,Russia
  • 6. Rabbit in the Moon Foundation(RIM),Suanphueng,Ratchaburi 70180,Thailand
  • 7. State Key Laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming,Yunnan 650223,China;Southeast Asia Biodiversity Research Institute,Chinese Academy of Sciences,Yezin,Nay Pyi Taw 05282,Myanmar
  • 8. Institute for Research and Training in Medicine,Biology and Pharmacy,Duy Tan University,Da Nang 550000,Vietnam;College of Medicine & Pharmacy,Duy Tan University,Da Nang 550000,Vietnam
  • 9. Department of Vertebrate Zoology,Biological Faculty,Lomonosov Moscow State University,Moscow 119234,Russia;Joint Russian-Vietnamese Tropical Research and Technological Center,Nghia Do,Cau Giay,Hanoi 122000,Vietnam
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Abstract

We describe a unique new species and genus of agamid lizard from the karstic massifs of Khammouan Province,central Laos.Laodracon carsticola Gen.et sp.nov.is an elusive medium-sized lizard(maximum snout-vent length 101 mm)specifically adapted to life on limestone rocks and pinnacles.To assess the phylogenetic position of the new genus amongst other agamids,we generated DNA sequences from two mitochondrial gene fragments(16S rRNA and ND2)and three nuclear loci(BDNF,RAG1 and c-mos),with a final alignment comprising 7 418 base pairs for 64 agamid species.Phylogenetic analyses unambiguously place the new genus in the mainland Asia subfamily Draconinae,where it forms a clade sister to the genus Diploderma from East Asia and the northern part of Southeast Asia.Morphologically,the new genus is distinguished from all other genera in Draconinae by possessing a notably swollen tail base with enlarged scales on its dorsal and ventral surfaces.Our work provides further evidence that limestone regions of Indochina represent unique"arks of biodiversity"and harbor numerous relict lineages.To date,Laodracon carsticola Gen.et sp.nov.is known from only two adult male specimens and its distribution seems to be restricted to a narrow limestone massif on the border of Khammouan and Bolikhamxai provinces of Laos.Additional studies are required to understand its life history,distribution,and conservation status.

Key words

Biodiversity/Endemism/Indochina/Karstic landscape/Laodracon carsticola/Phylogeny/Southeast Asia/Taxonomy

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基金项目

Russian Science Foundation(22-14-00037)

National Natural Science Foundation of China(32130015)

Rufford Foundation(39897-1)

出版年

2023
动物学研究
中国科学院昆明动物研究所 中国动物学会

动物学研究

CSTPCDCSCD
影响因子：0.582
ISSN：0254-5853
参考文献量2
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