A New Species of the Genus Xenophrys(Amphibia: Anura: Megophryidae) from Libo County, Guizhou, China

【Author】

Yanan ZHANG;Gang LI;Ning XIAO;Jiaqi LI;Tao PAN;Hui WANG;Baowei ZHANG;Jiang ZHOU;Anhui Key Laboratory of Eco-engineering and Bio-technique, School of Life Sciences, Anhui University;School of Life Sciences, Guizhou Normal University;Department of Basic Medical, Guiyang Nursing Vocational College;Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection;

【Institution】

Anhui Key Laboratory of Eco-engineering and Bio-technique, School of Life Sciences, Anhui University;School of Life Sciences, Guizhou Normal University;Department of Basic Medical, Guiyang Nursing Vocational College;Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection;

【Abstract】

A new species of the genus Xenophrys is described from a karst cave environment of Libo County, Guizhou Province, Southern China. The new species, Xenophrys liboensis sp. nov., is distinguished from its congeners by a combination of the following characters: 1) tympanum distinct; 2) vomerine teeth present; 3) the length of lower arm and hand larger than the half of snout-vent; 4) heels overlapped slightly when the flexed legs are held at right angles to the body axis; 5) toe tips with rudimentary webs and without grooves; 6) dermal fringes moderate; 7) tubercles on the dorsum forming an X-shaped weak ridge; 8) horn-like tubercle at the edge of the upper eyelid distinct; 9) color of the iris in life is brown. In Bayesian phylogenetic analysis of 22 species of Xenophrys, all the individuals of X. liboensis sp. nov. clustered into a monophyletic clade with high posterior probabilities. In addition, the ranges of genetic divergences of X. liboensis sp. nov. with other species were interspecific rather than intraspecific. Based on the above evidences, we consider that X. liboensis sp. nov. is a valid species in Xenophrys.

【Keywords】

Megophryidae;;Xenophrys;;new species;;phylogeny;;southern China

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