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Trimerodytes aequifasciatus (BARBOUR, 1908)

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Asiatic Annulate Keelback, Asiatic Water Snake
Chinese: “Huan Wen Hua You She” ( 环纹华游蛇 ) 
SynonymNatrix aequifasciata BARBOUR 1908: 317
Natrix aequifasciata — STEJNEGER 1926: 69
Natrix aequifasciata — MELL 1931 [1929]
Sinonatrix aequifasciata — ROSSMAN & EBERLE 1977
Sinonatrix aequifasciata — VOGEL et al. 2004
Sinonatrix aquaefasciata
Sinonatrix aequifasciata — NGUYEN et al. 2009
Sinonatrix aequifasciata — WALLACH et al. 2014: 677
Trimerodytes aequifasciatus — REN et al. 2019
Trimerodytes aequifasciata — FRANCIS 2021 
DistributionChina (Guangxi, Guangdong, Hong Kong, Hainan, Fujian, Guizhou, Hunan, Jiangxi, Sichuan, Zhejiang, Yunnan ?),
N Vietnam (Hoa Binh, Vinh Phuc, Lao Cai, Ha Giang, Cao Bang southwards to Nghe An, Ha Tinh), Laos

Type locality: “Mt. Wuchi”, now Mt. Wuzhi, Hainan Island, People’s Republic of China).  
Reproductionoviparous 
TypesHolotype: MCZ 7101 
DiagnosisAdditional details, e.g. a detailed description or comparisons (2527 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSpecimens from Yunnan have been redescribed as S. yunnanensis.

Distribution: possibly in Yunnan (China) but records from there are questionable (Wang et al. 2022). 
References
  • Barbour, THOMAS 1908. Some new reptiles and amphibians. Bull. Mus. Comp. Zool. Harvard 51 (12): 315-325 - get paper here
  • Barbour, Thomas 1909. Notes on Amphibia and Reptilia from Eastern Asia. Proc. New England zool. Club 4: 53-78, 2 plates - get paper here
  • Francis, A. 2021. A field guide to the snakes of Hong Kong. Regal Printing, Hong Kong - get paper here
  • GAO, ZHIWEI; TIANYU QIAN, JIANPING JIANG, DEJIA HOU, XUEJIAN DENG & DAODE YANG. 2022. Species diversity and distribution of amphibians and reptiles in Hunan Province, China. Biodiversity Science 30 (2): 21290, 1–15 - get paper here
  • Hecht, Vera L.; Cuong T. Pham, Tao T. Nguyen, Truong Q. Nguyen, Michael Bonkowski & Thomas Ziegler 2013. First report on the herpetofauna of Tay Yen Tu Nature Reserve, northeastern Vietnam. Biodiversity Journal 4 (4): 507–552
  • Le, Dzung Trung; Anh Van Pham, Cuong The Pham, Son Lan Hung Nguyen, Thomas Ziegler, Truong Quang Nguyen 2015. Review of the Genus Sinonatrix in Vietnam with a New Country Record of Sinonatrix yunnanensis Rao et Yang, 1998. Russ. J. Herpetol. 22 (2): 84-88
  • Mell,R. 1931. List of Chinese snakes. Lingnan Sci. Jour., Canton, 8 [1929]: 199-219.
  • Nguyen, S.V., Ho, C.T. and Nguyen, T.Q. 2009. Herpetofauna of Vietnam. Chimaira, Frankfurt, 768 pp.
  • Nguyen, Truong Quang; Tan Van Nguyen, Cuong The Pham, An Vinh Ong & Thomas Ziegler 2018. New records of snakes (Squamata: Serpentes) from Hoa Binh Province, northwestern Vietnam. Bonn zoological Bulletin 67 (1): 15–24 - get paper here
  • Rao, DING QI & D. T. YANG. 1998. A new species of Sinonatrix (Serpentes: Colubridae) of China with preliminary survey on Sinonatrix. Russ. J. Herpetol. 5 (1): 70-73. - get paper here
  • REN, Jinlong; Kai WANG, Peng GUO, Yingyong WANG, Tao Thien NGUYEN, and Jiatang LI 2019. On the Generic Taxonomy of Opisthotropis balteata (Cope, 1895) (Squamata: Colubridae: Natricinae): Taxonomic Revision of Two Natricine Genera. Asian Herpetological Research 10 (2): 105–128; DOI: 10.16373/j.cnki.ahr.180091 - get paper here
  • Stejneger, L. 1925. Chinese amphibians and reptiles in the United States National Museum. Proc. US Natl. Mus. 66 (2562): 1-115. - get paper here
  • Stuart, B.L. & Heatwole, H. 2008. Country records of snakes from Laos. Hamadryad 33: 97–106 - get paper here
  • Thinh, Bui Bao; <br>Trinh Thi Hong; <br>Hoang Ngoc Thao; Bui Bao Thien 2018. Initial building the sample sets of amphibians and reptiles in the Hong Duc University (Viet Nam). Постулат. 2018. No12 УДК 597.6 + 598.1 - get paper here
  • TRAN, THINH GIA & TAN VAN NGUYEN. 2021. Geographic distribution: TRIMERODYTES AEQUIFASCIATA (Asiatic Annulate Keelback). VIETNAM: DA NANG CITY: Hoa Vang District. Herpetological Review 52 (2): 348. - get paper here
  • Vogel, Genot; Patrick David, Olivier S. G. Pauwels and Norbert Brachtel 2004. On the occurence of the watersnake Sinonatrix aequifasciata (Barbour, 1908) (Serpentes, Colubridae, Natricinae) in Vietnam. Hamadryad 29 (1): 110 – 114 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Wang K, Lyu ZT, Wang J, Qi S, Che J 2022. Updated Checklist and Zoogeographic Division of the Reptilian Fauna of Yunnan Province, China. Biodiversity Science 30 (4): 21326, 1–31 - get paper here
  • Wang, C. G. M. Z. X., Jia, S. Y. K. T. L., & Hu, C. Z. J. 2022. An updated species checklist of amphibians and reptiles in Fujian Province, China. Biodiversity Science, 22090 - get paper here
  • 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
  • Zhao, E.M. 2006. The snakes of China [in Chinese]. Hefei, China, Anhui Sience & Technology Publ. House, Vol. I, 372 pp., Vol. II (color plates), 280 pp.
 
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