Monday, May 26, 2014

[Herpetology • 2012] Xenophrys jinggangensis • A New Species of the Genus Xenophrys Günther, 1864 (Anura: Megophryidae) from Mount Jinggang, eastern China, based on Molecular and Morphological Data

female Holotype Xenophrys jinggangensis Wang 2012

A new species, Xenophrys jinggangensis sp. nov., is described based on a series of specimens collected from Mount Jinggang, Jiangxi Province, Eastern China. The new species can be easily distinguished from other known congeners by morphology, morphometrics and molecular data of the mitochondrial 16SrRNA gene. The new species is characterized by its small size with adult females measuring 38.4–41.6 mm in snout-vent length and males measuring 35.1–36.7 mm; head length approximately equal to head width; tympanum large and distinct, about 0.8 times of eye diameter; vomerine teeth on two weak ridges; tongue not notched behind; relative finger length II < I < IV < III; slight lateral fringes present on digits; toes bases with thick, fleshy web; dorsum with tubercles and swollen dorsolateral folds; large pustules scattered on flanks; and unique color patterns. The new species represents the thirty-first known Xenophrys in China.

Key words: Megophryidae, Xenophrys jinggangensis sp. nov., morphology, mitochondrial DNA, taxonomy

FIGURE 3. 3A: Dorsal view of the adult female holotype SYS a001430 of Xenophrys jinggangensis sp. nov. in life. 3B: Lateral view of the holotype in life. 3C and 3D: Hand and foot of the holotype in life.
Photo Ying-Yong Wang and Jiang-Mo Zhang.

FIGURE 4. 4A: General aspect of the adult female paratype SYS a001413 in life. 4B: X. jinggangensis active at night on a rock in a mountain stream on 10 September 2011. 4C: Dorsal view of X. jinggangensis tadpole at stage 38 of in life on 5 December 2011.
Photo Ying-Yong Wang and Jian Zhao.

Distribution and biological ecology. Currently, X. jinggangensis sp. nov. is known only from the type locality, Mount Jinggang, located in the middle of the Luoxiao Range, running along the border between Jiangxi and Hunan Provinces, China. All individuals were found in small, slow-moving montane streams surrounded by moist subtropical evergreen broadleaved forests between 700–850 m elevations (Figure 1, 5).
Etymology. The specific epithet “jinggangensis” is in reference to the type locality, Mount Jinggang, Jiangxi Province, China.

Wang, Ying-yong, Tian-du Zhang, Jian Zhao, Yik-Hei Sung, Jian-huan Yang, Hong Pang & Zhong Zhang. 2012. Description of A New Species of the Genus Xenophrys Günther, 1864 (Amphibia: Anura: Megophryidae) from Mount Jinggang, China, based on Molecular and Morphological data. Zootaxa. (3546): 53-67.