Organisms Diversity & Evolution

, Volume 13, Issue 2, pp 203–214 | Cite as

A new species of Gracixalus (Amphibia: Anura: Rhacophoridae) from northern Vietnam

  • Truong Quang NguyenEmail author
  • Minh Duc Le
  • Cuong The Pham
  • Tao Thien Nguyen
  • Michael Bonkowski
  • Thomas Ziegler
Original Article


We describe a new species of small tree frog from northern Vietnam based on morphological differences and molecular divergence. Gracixalus waza sp. nov. is distinguishable from its congeners and other small rhacophorid species on the basis of a combination of the following characters: (1) size small (snout-vent length of males 27.1–32.9 mm, of females 37.6 mm); (2) head as wide as or wider than long; (3) vomerine teeth absent; (4) snout rounded and long (16–18 % of the snout-vent length); (5) spines on upper eyelid absent; (6) tibiotarsal projection absent; (7) dorsal skin smooth; (8) dermal fringes on forearm and tarsus absent; (9) dorsal surface of head and body greyish-green to moss-green with dark brown pattern forming an inverse Y marking; and (10) throat and chest with dark marbling. Our molecular data showed that the new species is nested in the same group with Gracixalus jinxiuensis sensu lato.


Treefrog Taxonomy Phylogeny Cao Bang Province Ha Lang forest 



We thank the directorate of the Forest Protection Department of Cao Bang Province for issuing relevant permits. The survey team would like to thank T.V. Ha and C.V. Chu from the Forest Protection Unit of Ha Lang District for supporting our field work. T.V. Nguyen and H.T. Duong are thanked for laboratory assistance. For the loan of specimens, we are grateful to C.X. Le, T.H. Ta, and L.V. Pham (Hanoi), Q.K. Le and T.N. Vu (Hanoi), J.-P. Jiang (Chengdu), J. Che (Kunming), A. Teynié (Clermont-Ferrand), and P. David (Paris). T.Q. Nguyen thanks W. Böhme and D. Rödder (Bonn) for support of his work in Germany. Thanks to D.T. Le, H.T. An (Hanoi), S. Herbst and T. Lehmann (Cologne), and D.A.T. Tran (Bonn) for their assistance, E. Sterling (New York) and K. Koy (Berkeley) for providing the map. We thank J.J.L. Rowley (Sydney) and another anonymous referee for commenting on the manuscript. M.D. Le was supported by the National Foundation for Science and Technology Development of Vietnam (NAFOSTED: Grant No. 106.15-2010.30). Field work in Cao Bang Province was funded by the Nagao Natural Environment Foundation (Japan). Research of T.Q. Nguyen in Germany is funded by the Alexander von Humboldt Stiftung/Foundation (VIE 114344).


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Copyright information

© Gesellschaft für Biologische Systematik 2012

Authors and Affiliations

  • Truong Quang Nguyen
    • 1
    • 2
    Email author
  • Minh Duc Le
    • 3
    • 4
    • 5
  • Cuong The Pham
    • 1
  • Tao Thien Nguyen
    • 6
  • Michael Bonkowski
    • 2
  • Thomas Ziegler
    • 7
  1. 1.Institute of Ecology and Biological ResourcesVietnam Academy of Science and TechnologyHanoiVietnam
  2. 2.Department of Terrestrial Ecology, Cologne BiocenterUniversity of CologneCologneGermany
  3. 3.Faculty of Environmental SciencesHanoi University of Science, Vietnam National UniversityHanoiVietnam
  4. 4.Center for Natural Resources and Environmental StudiesHanoi National UniversityHanoiVietnam
  5. 5.Department of HerpetologyAmerican Museum of Natural HistoryNew YorkUSA
  6. 6.Vietnam National Museum of NatureVietnam Academy of Science and TechnologyHanoiVietnam
  7. 7.AG Zoologischer Garten KölnCologneGermany

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