A new species of the genus Achalinus from southwestern Guangdong Province, China (Squamata: Xenodermatidae)

Jian WANG, Yao LI, Zhao-chi ZENG, Zhi-tong LYU, Yik-hei SUNG, You-yu LI, Chao-yu LIN, Ying-yong WANG

Research output: Journal PublicationsJournal Article (refereed)

Abstract

A new species of xenodermatid snake, Achalinus yunkaiensis J. Wang, Y. Li & Y.Y. Wang, sp. nov. was described based on a series of specimens collected from Dawuling Forestry Station located in the Yunkai Mountains of western Guangdong Province. It can be distinguished from known congeners by a significant genetic divergence at the mitochondrial CO1 gene fragment examined (p-distance ≥ 12.0%) and the following combination of characters: (1) dorsal scales strongly keeled, in 23 rows throughout the body, the most outer row on each side smooth and significantly enlarged; (2) tail relatively shorter, TaL/TL ratio 18.5–20.0%; (3) maxillary teeth 20–22; (4) length of suture between internasals subequal to that between the prefrontals; (5) nasal divided into two sections by nasal cleft, posterior one half as long as anterior; (6) loreal elongated, nearly twice as wide as high; (7) supralabials six; (8) infralabials six; (9) temporals 2+2+3 (rarely 2+2+4), the two anterior temporals in contact with eye; (10) ventrals 151–162, subcaudals 49–56 arranged in single row, not paired; (11) cloacal entire; (12) uniform brown (in adults) or black (in juveniles) above, tinged weakly iridescent, with a longitudinal dark-colored vertebral line; (13) light brown (in adults) or greyish white (in juveniles) beneath; and (14) dorsum with a longitudinal dark brown vertebral stripe from posterior margin of parietals to tail tip. Currently, 13 species are known in the genus Achalinus, with seven from mainland China.
Original languageEnglish
Pages (from-to)471-481
Number of pages11
JournalZootaxa
Volume4674
Issue number4
DOIs
Publication statusPublished - 26 Sep 2019
Externally publishedYes

Fingerprint

Squamata
tail
new species
China
sutures
snake
snakes
tooth
forestry
teeth
eyes
divergence
mountains
genetic variation
mountain
gene
genes
province
station

Bibliographical note

We thank Can-Rong Lin from Guangdong Lingnan Vocational and Technical College, Chun-Peng Guo from Cheng-du Institute of Biology, the Chinese Academy of Sciences, Hai-Long He, Run-Lin Li, Hong-Hui Chen and Zu-Yao Liu from the Museum of Biology, Sun Yat-sen University, for their help in the fieldwork. This work was supported by the Scientific Expedition of Biological Resources of Yunkai Mountains in Guangdong Province (grant no. 2018B030320001) to Wen-Bo Liao and the Specimen Platform of Ministry of Science and Technology, P.R. China, teaching specimens sub-platform (grant no. 2005DKA21403JK) to Ying-Yong Wang.

Keywords

  • Achalinus yunkaiensis sp. nov
  • China
  • Molecular analyses
  • Morphology
  • Taxonomy

Cite this

WANG, Jian ; LI, Yao ; ZENG, Zhao-chi ; LYU, Zhi-tong ; SUNG, Yik-hei ; LI, You-yu ; LIN, Chao-yu ; WANG, Ying-yong. / A new species of the genus Achalinus from southwestern Guangdong Province, China (Squamata: Xenodermatidae). In: Zootaxa. 2019 ; Vol. 4674, No. 4. pp. 471-481.
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title = "A new species of the genus Achalinus from southwestern Guangdong Province, China (Squamata: Xenodermatidae)",
abstract = "A new species of xenodermatid snake, Achalinus yunkaiensis J. Wang, Y. Li & Y.Y. Wang, sp. nov. was described based on a series of specimens collected from Dawuling Forestry Station located in the Yunkai Mountains of western Guangdong Province. It can be distinguished from known congeners by a significant genetic divergence at the mitochondrial CO1 gene fragment examined (p-distance ≥ 12.0{\%}) and the following combination of characters: (1) dorsal scales strongly keeled, in 23 rows throughout the body, the most outer row on each side smooth and significantly enlarged; (2) tail relatively shorter, TaL/TL ratio 18.5–20.0{\%}; (3) maxillary teeth 20–22; (4) length of suture between internasals subequal to that between the prefrontals; (5) nasal divided into two sections by nasal cleft, posterior one half as long as anterior; (6) loreal elongated, nearly twice as wide as high; (7) supralabials six; (8) infralabials six; (9) temporals 2+2+3 (rarely 2+2+4), the two anterior temporals in contact with eye; (10) ventrals 151–162, subcaudals 49–56 arranged in single row, not paired; (11) cloacal entire; (12) uniform brown (in adults) or black (in juveniles) above, tinged weakly iridescent, with a longitudinal dark-colored vertebral line; (13) light brown (in adults) or greyish white (in juveniles) beneath; and (14) dorsum with a longitudinal dark brown vertebral stripe from posterior margin of parietals to tail tip. Currently, 13 species are known in the genus Achalinus, with seven from mainland China.",
keywords = "Achalinus yunkaiensis sp. nov, China, Molecular analyses, Morphology, Taxonomy",
author = "Jian WANG and Yao LI and Zhao-chi ZENG and Zhi-tong LYU and Yik-hei SUNG and You-yu LI and Chao-yu LIN and Ying-yong WANG",
note = "We thank Can-Rong Lin from Guangdong Lingnan Vocational and Technical College, Chun-Peng Guo from Cheng-du Institute of Biology, the Chinese Academy of Sciences, Hai-Long He, Run-Lin Li, Hong-Hui Chen and Zu-Yao Liu from the Museum of Biology, Sun Yat-sen University, for their help in the fieldwork. This work was supported by the Scientific Expedition of Biological Resources of Yunkai Mountains in Guangdong Province (grant no. 2018B030320001) to Wen-Bo Liao and the Specimen Platform of Ministry of Science and Technology, P.R. China, teaching specimens sub-platform (grant no. 2005DKA21403JK) to Ying-Yong Wang.",
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A new species of the genus Achalinus from southwestern Guangdong Province, China (Squamata: Xenodermatidae). / WANG, Jian; LI, Yao; ZENG, Zhao-chi; LYU, Zhi-tong; SUNG, Yik-hei; LI, You-yu; LIN, Chao-yu; WANG, Ying-yong.

In: Zootaxa, Vol. 4674, No. 4, 26.09.2019, p. 471-481.

Research output: Journal PublicationsJournal Article (refereed)

TY - JOUR

T1 - A new species of the genus Achalinus from southwestern Guangdong Province, China (Squamata: Xenodermatidae)

AU - WANG, Jian

AU - LI, Yao

AU - ZENG, Zhao-chi

AU - LYU, Zhi-tong

AU - SUNG, Yik-hei

AU - LI, You-yu

AU - LIN, Chao-yu

AU - WANG, Ying-yong

N1 - We thank Can-Rong Lin from Guangdong Lingnan Vocational and Technical College, Chun-Peng Guo from Cheng-du Institute of Biology, the Chinese Academy of Sciences, Hai-Long He, Run-Lin Li, Hong-Hui Chen and Zu-Yao Liu from the Museum of Biology, Sun Yat-sen University, for their help in the fieldwork. This work was supported by the Scientific Expedition of Biological Resources of Yunkai Mountains in Guangdong Province (grant no. 2018B030320001) to Wen-Bo Liao and the Specimen Platform of Ministry of Science and Technology, P.R. China, teaching specimens sub-platform (grant no. 2005DKA21403JK) to Ying-Yong Wang.

PY - 2019/9/26

Y1 - 2019/9/26

N2 - A new species of xenodermatid snake, Achalinus yunkaiensis J. Wang, Y. Li & Y.Y. Wang, sp. nov. was described based on a series of specimens collected from Dawuling Forestry Station located in the Yunkai Mountains of western Guangdong Province. It can be distinguished from known congeners by a significant genetic divergence at the mitochondrial CO1 gene fragment examined (p-distance ≥ 12.0%) and the following combination of characters: (1) dorsal scales strongly keeled, in 23 rows throughout the body, the most outer row on each side smooth and significantly enlarged; (2) tail relatively shorter, TaL/TL ratio 18.5–20.0%; (3) maxillary teeth 20–22; (4) length of suture between internasals subequal to that between the prefrontals; (5) nasal divided into two sections by nasal cleft, posterior one half as long as anterior; (6) loreal elongated, nearly twice as wide as high; (7) supralabials six; (8) infralabials six; (9) temporals 2+2+3 (rarely 2+2+4), the two anterior temporals in contact with eye; (10) ventrals 151–162, subcaudals 49–56 arranged in single row, not paired; (11) cloacal entire; (12) uniform brown (in adults) or black (in juveniles) above, tinged weakly iridescent, with a longitudinal dark-colored vertebral line; (13) light brown (in adults) or greyish white (in juveniles) beneath; and (14) dorsum with a longitudinal dark brown vertebral stripe from posterior margin of parietals to tail tip. Currently, 13 species are known in the genus Achalinus, with seven from mainland China.

AB - A new species of xenodermatid snake, Achalinus yunkaiensis J. Wang, Y. Li & Y.Y. Wang, sp. nov. was described based on a series of specimens collected from Dawuling Forestry Station located in the Yunkai Mountains of western Guangdong Province. It can be distinguished from known congeners by a significant genetic divergence at the mitochondrial CO1 gene fragment examined (p-distance ≥ 12.0%) and the following combination of characters: (1) dorsal scales strongly keeled, in 23 rows throughout the body, the most outer row on each side smooth and significantly enlarged; (2) tail relatively shorter, TaL/TL ratio 18.5–20.0%; (3) maxillary teeth 20–22; (4) length of suture between internasals subequal to that between the prefrontals; (5) nasal divided into two sections by nasal cleft, posterior one half as long as anterior; (6) loreal elongated, nearly twice as wide as high; (7) supralabials six; (8) infralabials six; (9) temporals 2+2+3 (rarely 2+2+4), the two anterior temporals in contact with eye; (10) ventrals 151–162, subcaudals 49–56 arranged in single row, not paired; (11) cloacal entire; (12) uniform brown (in adults) or black (in juveniles) above, tinged weakly iridescent, with a longitudinal dark-colored vertebral line; (13) light brown (in adults) or greyish white (in juveniles) beneath; and (14) dorsum with a longitudinal dark brown vertebral stripe from posterior margin of parietals to tail tip. Currently, 13 species are known in the genus Achalinus, with seven from mainland China.

KW - Achalinus yunkaiensis sp. nov

KW - China

KW - Molecular analyses

KW - Morphology

KW - Taxonomy

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U2 - 10.11646/zootaxa.4674.4.6

DO - 10.11646/zootaxa.4674.4.6

M3 - Journal Article (refereed)

VL - 4674

SP - 471

EP - 481

JO - Zootaxa

JF - Zootaxa

SN - 1175-5326

IS - 4

ER -