Gracixalus jinxiuensis (Hu, 1978)
Jinxiu bubble-nest frog, Jinxiu Small Treefrog
Gracixalus jinxiuensis is very similar in appearance to other members of its genus. From G. quyeti, the focal species can be differentiated by having a distinct supratympanic fold, a head that is longer than wide, and a shorter tibotarsal articulation that reaches the eye (Nguyen et al. 2008). From G. quangi, G. jinxiuensis can be differentiated because the latter has a brown dorsum (in life), rounded snout, and no tibiotarsal projections whereas the former has an olive-green dorsum (in life) and pale yellow-brown (in preservative) dorsum with triangular-pointed snout (Rowley et al. 2011). Male G. jinxiuensis from moderate elevations in southeastern China overlap in size with G. seesom but can be differentiated based on dorsal color and texture, which is tan and smooth in G. seesom while brown with scattered tubercles in G. jinxiuensis, and snout shape, which is pointed in G. seesom and rounded in G. jinxiuensis (Matsui et al. 2015). Gracixalus jinxiuensis is also very similar to Kurixalus ananjevae but they differ in size (Rowley et al. 2011).
In preservative, G. jinxiuensis has a grey snout and dorsum, the latter of which has a dark brown inverse Y. Between its eyes, there is a triangular pattern that splits into two bands and continue toward the back. Its tympanum is brown. The lateral sides of the head and flanks are grey and do not have spots. The throat, chest and belly are cream to white. The dorsal surfaces of the forelimb and thigh, and the tibia and foot are grey with some dark bars. The ventral sides of the forelimbs are white, while the ventral side of the thighs are white to grey. The toe webbing is grey (Ziegler et al. 2014). In life the dorsum is brown (Rowley et al. 2011; Matsui et al. 2015).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: China, Viet Nam
Life History, Abundance, Activity, and Special Behaviors
Trends and Threats
Possible reasons for amphibian decline
General habitat alteration and loss
Gracixalus jinxiuensis is synonymous with Philautus jinxiuensis (Lau et al. 2009) and was removed from the genus Philautus placed in the genus Gracixalus by Yu et al. (2009) based on Bayesian inference and Maximum-likelihood analysis of concatenated sequences from 12S rRNA, 16S rRNA, Cytb, rhodopsin exon 1, tyrosinase exon 1, and Rag-1.
Maximum-likelihood analysis and Bayesian inference by Rowley et al. (2011) based on a 16S rRNA gene sequence identified a species complex that included G. jinxiuensis, K. ananjevae, K. carinensis, and a specimen that is presumed to be misidentified as K. odontotarsus. The complex is sister to a clade consisting of G. gracilipes, G. supercornutus, G. quangi and G. quyeti.
There is weak support for the genus Gracixalus being sister to the clade formed by Feihyla, Polypedates, and Chiromantis based on Bayesian inference and Maximum-likelihood analysis of concatenated sequences from 12S rRNA, 16S rRNA, Cytb, rhodopsin exon 1, tyrosinase exon 1, and Rag-1 (Yu et al. 2009).
This species may occur near the Dan Hoa commune, Minh Hoa district, Quang Binh province of Vietnam. However, more information is needed to confirm this the population is indeed G. jinxiuensis (Lau et al. 2009)
The species epithet comes from the location it was found: Jinxiu Yao Autonomous County in Vietnam (Ziegler et al. 2014).
Nguyen, Q.T., Hendrix, R., Bohme, W., Vu, .N.T., Ziegler, T. (2008). ''A new species of the genus Philautus (Amphibia: Anura: Rhacophoridae) from Truong Son Range, Quang Binh Province, central Vietnam.'' Zootaxa , 1925, 1-13.
Lau, M. W. N., Wenhao, C., Ohler, A., Swan, S. (2009). Gracixalus jinxiuensis. The IUCN Red List of Threatened Species 2009: e.T58859A11850506. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T58859A11850506.en. Downloaded on 15 August 2016.
Matsui, M., Khonsue, W., Panha, S., Eto, K. (2015). ''A New Tree Frog of the Genus Gracixalus from Thailand (Amphibia: Rhacophoridae).'' Zoological Science, 32(2), 204-210.
Rowley J.J.L., Dau V.Q., Nguyen T.T., Cao T.T., Nguyen S.V. (2011). ''A new species of Gracixalus (Anura: Rhacophoridae) with a hyperextended vocal repertoire from Vietnam.'' Zootaxa, (3125), 22-38.
Yu, G., Rao, D., Zhang, M., Yang, J. (2009). ''Re-examination of the phylogeny of Rhacophoridae (Anura) based on mitochondrial and nuclear DNA.'' Molecular Phylogenetics and Evolution, 50, 571-579.
Ziegler, T., Tran, D.T.A., Nguyen, T.Q., Perl, R.G.B., Wirk, L., Kulisch, M., Lehmann, T., Rauhaus, A., Nguyen, T.T., Le, Q.K., and Vu, T.N. (2014). ''New amphibian and reptile records from Ha Giang Province, northern Vietnam.'' Herpetology Notes, 7, 185-201.
Originally submitted by: Haley Stapleton, Ann T. Chang (first posted 2016-08-19)
Description by: Michelle S. Koo (updated 2021-03-17)
Distribution by: Michelle S. Koo (updated 2021-03-17)
Edited by: Ann T. Chang (2021-03-17)
Species Account Citation: AmphibiaWeb 2021 Gracixalus jinxiuensis: Jinxiu bubble-nest frog <https://amphibiaweb.org/species/4421> University of California, Berkeley, CA, USA. Accessed Feb 4, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 4 Feb 2023.
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