A New Cryptic Tree Frog Species Allied to Kurixalus banaensis (Anura: Rhacophoridae) from Vietnam

Thien Tao Nguyen, Matsui Masafumi, Eto Koshiro


A new species of the genus Kurixalus is described from the Central Highlands of Vietnam based on molecular phylogenetic and morphological analyses. Morphologically, Kurixalus motokawai sp. nov. is most similar to K. banaensis but they are clearly separated from each other in mitochondrial DNA sequences. In phylogenetic analysis the new species clustered in the same clade with Kurixalus banaensis and K. viridescens. However, the new species differs from K. banaensis by having a smaller body size, a higher ratio of forelimb length/SVL in both sexes, a smaller ratio of first toe length/SVL in males, snout tip less markedly pointed, and only weakly developed dermal appendages on the outer edges of fore- and hindlimbs. Kurixalus motokawai sp. nov. also differs from K. viridescens by having a smaller size in females and a brown dorsum with dark markings.


Kurixalus motokawai sp. nov.; mtDNA phylogeny; taxonomy; Central Highlands; Gia Lai Province; Kon Tum Province

Full Text:



Bossuyt F. and Dubois A. (2001), «A review of the frog genus Philautus Gistel, 1848 (Amphibia, Anura, Ranidae, Rhacophorinae)», Zeylanica, 6, 1 – 112.

Bourret R. (1939), «Notes herpétologiques sur l’Indochine française. XVII. Reptiles et batraciens reçus au Laboratoire des Sciences Naturelles de l’Université au cors de l’année 1938. Descriptions de trois espèces nouvelles», Ann. Bull. Gen. Instr. Publ. Hanoi, 1939, 13 – 34.

Fouquet A., Gilles A., Vences M., Marty C., Blance M., and Gemmel N. J. (2007), «Underestimation of species richness in neotropical frogs revealed by mtDNA analysis», PLoS ONE, 2, e1109.

Frost D. R. (2014), Amphibian Species of the World: an online reference. Version 6.0 (accessed in September 2014). Electronic Database accessible at http://research.amnh.org/herpetology/amphibia/index.html. American Museum of Natural History, New York, USA.

Kuraishi N., Matsui M., Hamidy A., Belabut D. M., Ahmad N., Panha S., Sudin A., Yong H.-S., Jiang J.-P., Ota H., Thong H. T., and Nishikawa K. (2013), «Phylogenetic and taxonomic relationships of the Polypedates leucomystax complex (Amphibia)», Zool. Scripta, 42, 54 – 70.

Li J.-T., Che J., Murphy R. W., Zhao H., Zhao E.-M., Rao D.-Q., and Zhang Y.-P. (2009), «New insights to the molecular phylogenetics and generic assessment in the Rhacophoridae (Amphibia: Anura) based on five nuclear and three mitochondrial genes, with comments on the evolution of reproduction», Mol. Phylogen. Evol., 53, 509 – 522.

Li J. T., Li Y., Klaus S., Rao D.-Q., Hillis D. M., and Zhang Y.-P. (2013), «Diversification of rhacophorid frogs provides evidence for accelerated faunal exchange between India and Eurasia during the Oligocene», Proc. Nat. Acad. Sci. USA, 110, 3441 – 3446.

Matsui M. (1984), «Morphometric variation analyses and revision of the Japanese toads (genus Bufo, Bufonidae)», Contrib. Biol. Lab. Kyoto Univ., 26, 209 – 428.

Matsui M. (1994), «A taxonomic study of the Rana narina complex, with description of three new species (Amphibia: Ranidae)», Zool. J. Linn. Soc., 111, 385 – 415.

Matsui M. and Orlov N. L. (2004), «A new species of Chirixalus from Vietnam (Anura: Rhacophoridae)», Zool. Sci., 21, 671 – 676.

Nguyen S. V., Ho C. T., and Nguyen T. Q. (2009), Herpetofauna of Vietnam, Edition Chimaira, Frankfurt am Main.

Nguyen T. T., Matsui M., and Duc H. M. (2014), «A new tree frog of the genus Kurixalus (Anura: Rhacophoridae) from Vietnam», Curr. Herpetol., 34, 101 – 111.

Savage J. M. (1975), «Systematics and distribution of the Mexican and Central American stream frogs related to Eleutherodactylus rugulosus», Copeia, 1975, 244 – 306.

Taylor E. H. (1962), «The amphibian fauna of Thailand», Univ. Kansas Sci. Bull., 63, 265 – 599.

Yu G., Zhang M., and Yang J. (2010), «A species boundary within the Chinese Kurixalus odontotarsus species group (Anura: Rhacophoridae): new insights from molecular evidence», Mol. Phylogen. Evol., 56, 942 – 950.

DOI: https://doi.org/10.30906/1026-2296-2014-21-4-295-302


  • There are currently no refbacks.

You can subscribe to the print or electronic version of the journal on the site of EastView Company. If you have any questions, please write to the email sales@ivis.ru