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Opisthotropis maculosa STUART & CHUAYNKERN, 2007

IUCN Red List - Opisthotropis maculosa - Data Deficient, DD
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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Yellow-spotted mountain stream snake, Yellow-spotted mountain Keelback
Chinese: 黄斑后棱蛇 
SynonymOpisthotropis maculosus STUART & CHUAYNKERN 2007
Opisthotropis maculosa — ZIEGLER et al. 2008
Opisthotropis maculosa — WALLACH et al. 2014: 510
Opisthotropis maculosus — CHAN-ARD et al. 2015: 226
Opisthotropis maculosa — COTA et al. 2022 
DistributionThailand (Nong Khai Province)

Type locality: Thailand, Nong Khai Province, Boong Klar District, Phu Wua Wildlife Sanctuary, at marker 027 on footpath to Lad Phleuy Waterfall, 18° 14’ 31.0’’ N, 103° 57’ 44.5’’ E, 190 m elevation.  
Reproductionoviparous 
TypesHolotype: THNHM 05343/FMNH 265798, adult male 
Diagnosis 
CommentHabitat: aquatic, inhabiting flowing streams.

Diet: fishes, frogs, tadpoles, freshwater shrimp and earthworms.

Behavior: nocturnal

Distribution: not in Vietnam, despite recent reports from there, which actually represent Opisthotropis haihaensis (fide Ziegler et al. 2019). Populations from S China (Guangdong, Guangxi) have been re-described as O. hungtai. 
Etymologyfrom Latin “maculosus” = spotted, referring to the distinctive dorsal pattern. 
References
  • Chan-ard, T., Parr, J.W.K. & Nabhitabhata, J. 2015. A field guide to the reptiles of Thailand. Oxford University Press, NY, 352 pp. [see book reviews by Pauwels & Grismer 2015 and Hikida 2015 for corrections] - get paper here
  • Cota, M., Makchai, S., & Pongcharoen, C. 2022. Updated Catalogue of the Amphibian and Reptile Type Specimens of the Natural History Museum, National Science Museum, Thailand. Thai Specimens 21: 311––5407
  • DAVID, PATRICK; CUONG THE PHAM, TRUONG QUANG NGUYEN & THOMAS ZIEGLER 2011. A new species of the genus Opisthotropis Günther, 1872 (Squamata: Natricidae) from the highlands of Kon Tum Province, Vietnam. Zootaxa 2758: 43–56 - get paper here
  • Nguyen, Tan Van; Truong Quang Nguyen, Cuong The Pham, Thomas Ziegler 2018. First Country Record of Opisthotropis maculosa Stuart et Chuaynkern, 2007 from Vietnam. Russ. J. Herpetol. 25 (1): 74-78 - get paper here
  • Stuart, B.L. & Chuaynkern, Y. 2007. A new Opisthotropis (Serpentes: Colubridae: Natricinae) from Noetheastern Thailand. Current Herpetology 26 (1): 35-40 - get paper here
  • TEYNIÉ, ALEXANDRE; ANNE LOTTIER, PATRICK DAVID, TRUONG QUANG NGUYEN & GERNOT VOGEL 2014. A new species of the genus Opisthotropis Günther, 1872 from northern Laos (Squamata: Natricidae). Zootaxa 3774 (2): 165–182 - 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, J., Lyu, Z-T., Zeng, Z-C., Lin, C-Y., Yang, J-H., Nguyen, T. Q., Le, M. D., Ziegler, T. and Wang, Y-Y. 2020. Re-examination of the Chinese record of Opisthotropis maculosa (Squamata, Natricidae), resulting in the first national record of O. haihaensis and description of a new species. ZooKeys 913: 141-159. - 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
  • YANG, JIAN-HUAN; YIK-HEI SUNG & BOSCO PUI-LOK CHAN 2013. A new species of the genus Opisthotropis Günther, 1872 (Squamata: Colubridae: Natricinae) from Guangdong Province, China. Zootaxa 3646 (3): 289–296 - get paper here
  • YANG, JIAN-HUAN; YING-YONG WANG, BING ZHANG, MICHAEL WAI-NENG LAU & WEN-HAO CHOU 2011. Revision of the diagnostic characters of Opisthotropis maculosa Stuart and Chuaynkern, 2007 with notes on its distribution and variation, and a key to the genus Opisthotropis (Squamata: Natricidae). Zootaxa 2785: 61–68 - get paper here
  • ZIEGLER, THOMAS; CUONG THE PHAM, TAN VAN NGUYEN, TRUONG QUANG NGUYEN, JIAN WANG, YING-YONG WANG, BRYAN L. STUART & MINH DUC LE 2019. A new species of Opisthotropis from northern Vietnam previously misidentified as the Yellow-spotted Mountain Stream Keelback O. maculosa Stuart & Chuaynkern, 2007 (Squamata: Natricidae). Zootaxa 4613 (3): 579–586 - get paper here
  • Ziegler, Thomas; Patrick David, Vu Ngoc Thanh 2008. A new natricine snake of the genus Opisthotropis from Tam Dao, Vinh Phuc Province, northern Vietnam (Squamata, Colubridae). Zoosystematics and Evolution 84 (2): 197 -203 - get paper here
 
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