,姬蛙,缅甸,中南半岛,马圭,克钦邦,生物多样性,分类学,线粒体DNA,形态学,声学,叫声 ," /> ,姬蛙,缅甸,中南半岛,马圭,克钦邦,生物多样性,分类学,线粒体DNA,形态学,声学,叫声 ,"/> On the road to Mandalay: contribution to the Microhyla Tschudi, 1838 (Amphibia: Anura: Microhylidae) fauna of Myanmar with description of two new species

Zoological Research ›› 2019, Vol. 40 ›› Issue (4): 244-276.doi: 10.24272/j.issn.2095-8137.2019.044

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On the road to Mandalay: contribution to the Microhyla Tschudi, 1838 (Amphibia: Anura: Microhylidae) fauna of Myanmar with description of two new species

Nikolay A. Poyarkov Jr.1,2(),Vladislav A. Gorin1,Than Zaw3,Valentina D. Kretova1,Svetlana S. Gogoleva2,4,5,Parinya Pawangkhanant6,Jing Che7,8   

  1. 1. Department of Vertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow 119234, Russia
    2. Joint Russian-Vietnamese Tropical Research and Technological Center, Nghia Do, Cau Giay, Hanoi, Vietnam
    3. Zoology Department, Mohnyin Degree College, Mohnyin, Kachin State 1111, Myanmar
    4. A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia
    5. Zoological Museum of the Lomonosov Moscow State University, Moscow 125009, Russia
    6. Bansomdejchaopraya Rajabhat University, Thon Buri, Bangkok 10600, Thailand
    7. State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
    8. Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin Nay Pyi Taw 05282, Myanmar
  • Received:2018-11-29 Accepted:2019-03-07 Online:2019-07-18 Published:2019-07-11
  • Contact: Nikolay A. Poyarkov Jr. E-mail:n.poyarkov@gmail.com
  • Supported by:
    This study was partially supported by the Russian Science Foundation (19-14-00050) to N.A.P., Southeast Asia Biodiversity Research Institute, CAS (Y4ZK111B01: 2017CASSEAB RIQG002), and Animal Branch of the Germplasm Bank of Wild Species, CAS(Large Research Infrastructure Funding)

Abstract:

We present a morphological and molecular assessment of the Microhyla fauna of Myanmar based on new collections from central (Magway Division) and northern (Kachin State) parts of the country. In total, six species of Microhyla are documented, including M. berdmorei, M. heymonsi, M. butleri, M. mukhlesuri and two new species described from the semi-arid savanna-like plains of the middle part of the Irrawaddy (Ayeyarwady) River Valley. We used a 2 481 bp long 12S rRNA–16S rRNA fragment of mtDNA to hypothesize genealogical relationships within Microhyla. We applied an integrative taxonomic approach combining molecular, morphological, and acoustic lines of evidence to evaluate the taxonomic status of Myanmar Microhyla. We demonstrated that the newly discovered populations of Microhyla sp. from the Magway Division represent two yet undescribed species. These two new sympatric species are assigned to the M. achatina species group, with both adapted to the seasonally dry environments of the Irrawaddy Valley. Microhyla fodiens sp.nov. is a stout-bodied species with a remarkably enlarged shovel-like outer metatarsal tubercle used for burrowing and is highly divergent from other known congeners (P-distance≥8.8%). Microhyla irrawaddy sp. nov. is a small-bodied slender frog reconstructed as a sister species to M. kodial from southern India (P-distance=5.3%); however, it clearly differs from the latter both in external morphology and advertisement call parameters. Microhyla mukhlesuri is reported from Myanmar for the first time. We further discuss the morphological diagnostics and biogeography of Microhyla species recorded in Myanmar.

Key words: Narrow-mouth frogs, Burma, Indochina, Magway, Kachin, Biodiversity, Taxonomy, mtDNA, Morphology, Acoustics, Advertisement call