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| Odorrana sangzhiensis Zhang, Li, Hu & Yang, in Zhang, Li, Hu, Li, Gu, Xiao et Yang, 2021. |
Abstract
A new species, Odorrana sangzhiensis sp. nov., is described, based on five specimens from Sangzhi County, Zhangjiajie City, Hunan Province, China. Molecular phylogenetic analyses, based on mitochondrial 12S rRNA and 16S rRNA gene sequences, strongly support the new species as a monophyletic group nested into the O. schmackeri species complex. The new species can be distinguished from its congeners by a combination of the following characters: (1) body size medium (SVL: 42.1–45.1 mm in males, 83.3–92.7 mm in females); (2) dorsolateral folds absent; (3) tympanum diameter 1.53 times as long as the width of the disc of finger III in females; 2.3 times in males; (4) dorsal skin green with dense granules and sparse irregular brown spots; males with several large warts on dorsum; (5) two metacarpal tubercles; (6) relative finger lengths: I ≤ II < IV < III; (7) tibiotarsal articulation beyond the tip of the snout; (8) ventral surface smooth in females; throat and chest having pale spinules in adult males; (9) dorsal limbs green or yellow green with brown transverse bands; and (10) paired external vocal sacs located at corners of the throat, finger I with light yellow nuptial pad in males. This discovery increases the number of Odorrana species to 59 and those known from China to 37.
Keywords: Molecular phylogeny, morphology, Odorrana sangzhiensis sp. nov., phylogenetic analyses, taxonomy, Wuling Mountains
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| Morphology and colour pattern of living Odorrana sangzhiensis sp. nov. A dorsolateral view of the holotype CSUFT 4308220051 B ventral view of the holotype CSUFT 4308220051 C dorsolateral view of a gravid female (CSUFT 4308220047) D dorsolateral view of adult female E variation in morphology and colour pattern of an adult female (CSUFT 4308220048) F reproductive behaviour of Odorrana sangzhiensis sp. nov. |
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| Comparisons of morphological characteristics with congeners A Odorrana sangzhiensis sp. nov. (male, photo by Bing Zhang in the type locality) B Odorrana sangzhiensis sp. nov. (female, photo by Bing Zhang in the type locality) C Odorrana hejiangensis (male, photo by Shize Li in Chishui City, Guizhou Province, China) D O. hejiangensis (female, photo by Bo Cai in the type locality) E Odorrana huanggangensis (male, photo by Shengchao Shi in the type locality) F O. huanggangensis (female, photo by Shengchao Shi in the type locality) G Odorrana kweichowensis (male, photo by Shize Li in the type locality) H O. kweichowensis (female, photo by Shize Li in the type locality) I Odorrana schmackeri (male, photo by Liang Qiao in Wushan County, Chongqing City, China) J O. schmackeri (female, photo by Liang Qiao in Wushan County, Chongqing City, China) K Odorrana tianmuii (male, photo by Yufan Wang in the type locality) L O. tianmuii (female, photo by Yufan Wang in the type locality). |
Odorrana sangzhiensis Zhang, Li, Hu & Yang, sp. nov.
Diagnosis: Odorrana sangzhiensis sp. nov. can be distinguished from all of its congeners by a combination of following characters: (1) medium size, SDI = 1.03 (SVL 83.3–92.7 mm in females and 42.1–45.1 mm in males); (2) head length greater than head width; (3) dorsolateral folds absent; (4) a small white or beige dot between eyes; (5) brown supratympanic fold slightly distinct; (6) the tympanum diameter in females 1.53 times as long as the width of the disc of finger III; in males 2.3 times; (7) green dorsal skin with dense granules and sparse, irregular brown spots; the males with several large warts on dorsum; (8) flanks with larger tubercles, 4–7 large tubercles usually arranged in a dorsolateral row of the males; (9) two metacarpal tubercles; (10) discs of all digits with circum-marginal grooves; (11) relative finger lengths: I ≤ II < IV < III; (12) feet fully webbed; (13) tibiotarsal articulation beyond the tip of the snout; (14) ventre smooth in females; pale spinules present on throat and chest of adult males; (15) dorsal digits light yellow or beige with light brown spots, dorsal limbs green or yellow green with brown transverse bands; (16) having paired external vocal sacs located at corners of the throat, light yellow nuptial pad on finger I in males.
Etymology: The scientific name “sangzhiensis” is derived from its type locality Sangzhi County in Hunan Province. As common names, we suggest Sangzhi Odorous Frog (English) and Sang Zhi Chou Wa (Chinese).
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| Habitat of Odorrana sangzhiensis sp. nov. in the type locality A, B canyon stream habitats in the type locality C, D habitats in the type locality threatened by the hydropower station. |
Bing Zhang, Yuan Li, Ke Hu, Pipeng Li, Zhirong Gu, Nengwen Xiao and Daode Yang. 2021. A New Species of Odorrana (Anura, Ranidae) from Hunan Province, China. ZooKeys. 1024: 91-115. DOI: 10.3897/zookeys.1024.56399
