Abstract
Two new species of the genus Leptobrachella Smith, 1925, L.bijie J. Wang, Y.L. Li, Y. Li, H.H. Chen & Y.Y. Wang, sp. nov. and L.purpuraventra J. Wang, Y.L. Li, Y. Li, H.H. Chen & Y.Y. Wang, sp. nov., were described from northwestern Guizhou Province, China based on a combination of acoustic, molecular, and morphological data. The new discoveries bring the total number of this genus to 73, with 16 congeners recorded in China, and represent the second and third species of the genus reported from Guizhou Province.
Highlights
14 species of this genus are known from China, i.e., L. alpinus from Yunnan and Guangxi provinces, L. laui from southern Guangdong Province including Hong Kong, L. liui from Fujian, Jiangxi, Guangdong, Guangxi, Hunan and Guizhou provinces, L. mangshanensis from southern Hunan Province, L. oshanensis from Gansu, Sichuan, Chongqing, Guizhou and Hubei provinces, L. cf. pelodytoides (which may be a population of L. eos (Ohler et al 2011)), L. purpura, L. tengchongensis, L. ventripuntatus and L. yingjiangensis from Yunnan Province, L. wuhuangmontis from southern Guangxi Province, L. yunkaiensis from western GuangdongProvince, and L. sungi and L. maoershanensis from Guangxi Province (Hou et al 2018; Sung et al 2014; Wang et al 2018; Yang et al 2016; Yuan et al 2017, Yang et al 2018)
Bayesian inference (BI) and maximum likelihood (ML) phylogenetic trees were constructed based on DNA sequences of the mitochondrial 16S rRNA gene with a total length of 481-bp
The two analyses resulted in essentially identical topologies (Figure 2) which clustered the population of Leptobrachella from Jinjiazhai Village (JV) from Wujing Nature Reserve and those from Baimashan Forest Station (BFS) of Zhaozishan Nature Reserve together with very high node supporting values (0.97 in BI and 100% in ML) and represented a separately evolving lineage (Clade A)
Summary
During recent field surveys in northwestern Guizhou Province of China in 2018, a number of specimens were collected from Zhaozishan Nature Reserve and Wujing Nature Reserve in Qixingguan District of Bijie City, respectively (Figure 1), which can be morphologically assigned to the genus Leptobrachella, based on the following characters: (1) small or moderate size, snout-vent length not greater than 60.0 mm, (2) rounded finger tips, the presence of an elevated inner palmar tubercle. Acoustic data, and molecular divergences; they are described as two new species
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