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Opisthotropis shenzhenensis WANG, GUO, LIU, LYU, WANG, LUO, SUN & ZHANG, 2017

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Shenzhen Mountain Stream Snake
Chinese: Shenzhen Hou Leng She 
SynonymOpisthotropis shenzhenensis WANG, GUO, LIU, LYU, WANG, LUO, SUN & ZHANG 2017 
DistributionChina (Guangdong)

Type locality: Mt. Wutong (22°34′54.8′′N, 114°12′2.7′′E; 260 m a.s.l.), Shenzhen City, Guangdong Province, China  
TypesHolotype: SYS r001018, adult male, collected by Jian Zhao and Run-Lin Li on 15 September, 2014. Paratypes: SYS r000635, an adult male, collected by JHY and RLL on 11 April, 2012 from the same locality as the holotype. Three adult female specimens: SYS r000636 collected by JHY and RLL on 11 April, 2012 from the same locality as the holotype; SYS r001021 collected by JZ and RLL on 17 September, 2014 from Sanzhoutian (22°38′52.16′′N, 114°16′32.08′′E; 314 m a.s.l.), Shenzhen City; SYS r001032 collected by JZ and RLL on 19 September, 2014 from Mt. Tiantou (22°41′1.75′′N, 114°24′17.58′′E; 327 m a.s.l.), Shenzhen City; SYS r001145 collected by JW and ZTL on 13 April, 2015 from Mt. Yingping (22°52′40.54′′N, 114°9′12.27′′E; 155 m a.s.l.), Dongguan City, Guangdong Province, China. 
DiagnosisDiagnosis: Opisthotropis shenzhenensis sp. nov. differs from other species of Opisthotropis by a combination of the following characters: (1) TL 328–412 mm; (2) tail short, TaL 16–19% of TL; (3) rostral, narrowed, RW 25– 30% of HW; (4) nasal in contact with first, second and third supralabials; (5) nasal cleft invariably pointing to the middle of upper edge of second supralabial; (6) loreal 1.3–1.6 times as long as deep; (7) loreal not entering the orbit, not in contact with second supralabials in all known specimens; (8) supralabials 9–10, the last one smaller than adjacent preceding one; (9) infralabials 8–10; (10) dorsal scale rows 19:19:19; (11) dorsal scales keeled throughout, weakly keeled on neck, posteriorly strongly keeled; (12) ventrals 162–179; subcaudals 53–60; (13) olive-green above in life, each scale with black edge, forming fine mesh pattern; yellow beneath, ventral surface of head and tail mottled with blackish grey. 
CommentSympatry: Opisthotropis shenzhenensis, O. andersonii, O. kuatunensis and O. lateralis.
EtymologyThe specific name “shenzhenensis” is derived from the type locality of the new species, Shenzhen City, Guangdong Province, China. 
  • Wang, Kai; Jinlong Ren, Hongman Chen, Zhitong Lyu, Xianguang Guo Ke Jiang, Jinmin Chen, Jiatang Li, Peng Guo, Yingyong Wang, Jing Che 2020. The updated checklists of amphibians and reptiles of China. Biodiversity Science 28 (2): 189-218 - get paper here
  • WANG, YING-YONG; QIANG GUO, ZU-YAO LIU, ZHI-TONG LYU, JIAN WANG, LIN LUO, YAN-JUN SUN, YAN-WU ZHANG 2017. Revisions of two poorly known species of Opisthotropis Günther, 1872 (Squamata: Colubridae: Natricinae) with description of a new species from China. Zootaxa 4247 (4): 391-412; DOI: - get paper here
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