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Pareas hamptoni (BOULENGER, 1905)

IUCN Red List - Pareas hamptoni - Least Concern, LC
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Higher TaxaPareidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Hampton's Slug Snake
G: Hamptons Schneckennatter
Chinese: 缅甸钝头蛇
Vietnamese: Rắn hổ mây hampton 
SynonymAmblycephalus hamptoni BOULENGER 1905
Amblycephalus carinatus berdmorei — SMITH 1930 (part.) (non Pareas berdmorei THEOBALD 1868 = Pareas carinatus WAGLER 1830)
Amblycephalus hamptoni — PARKER 1925: 305
Pareas hamptoni — SMITH 1943: 120 (part.)
Amblycephalus tonkinensis — DEUVE 1961: 30
Pareas hamptoni — TAYLOR 1965: 680
Dipsas hamptoni — NGUYEN & HO 1996 (part.)
Pareas hamptoni — ZIEGLER 2002: 245 (part.)
Pareas hamptoni tonkinensis — ZIEGLER et al. 2007 (part)
Pareas hamptoni — VOGEL 2015 (part)
Pareas hamptoni — WALLACH et al. 2014: 536 (part)
Pareas tonkinensis — ZAHER et al. 2019
Pareas (Eberhardtia) hamptoni — POYARKOV et al. 2022 
DistributionBurma, Vietnam (Lao Cai etc.), China ? (Yunnan)

Type locality: Mogok, Myanmar (= Burma)  
Reproductionoviparous 
TypesHolotype: BMNH 1904.4.26.16 
DiagnosisDiagnosis: A small species, vertebral scales enlarged; body strongly compressed; frontal shorter than parietal; prefrontal entering eye. Head sharply distinct from neck; one preocular; loreal excluded from eye, or barely touching it. (Taylor 1965: 680)


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CommentDistribution: Reports from Hongkong most likely refer to P. chinensis (fide OTA 1997, VOGEL 2010). Not in Hong Kong fide Francis 2021. Ding et al. (2020) confirmed that Pareas hamptoni inhabits only Myanmar and the province of Lao Cai in north-western Vietnam and stated that it might also be present in Yunnan Province, People’s Republic of China. Populations of Pareas hamptoni (Boulenger, 1905), cited from Laos by Deuve (1970), Stuart (1999), Teynié et al. (2014b) and Nguyen et al. (2020a), should now be identified either as P. formosensis or as P. geminatus (Maury et al. 2022).

Synonymy after VOGEL 2010 who considered Pareas tonkinensis as a synonym, but Zaher et al. 2019 found significant genetic differences between hamptoni and tonkinensis.

Behavior: nocturnal.

Habitat: partly arboreal (Harrington et al. 2018).

Group: The Pareas hamptoni species group includes P. formosensis, P. xuelinensis, P. geminatus, P. hamptoni, P. niger, P. mengziensis, P. iwasakii, P. atayal, P. komaii, P. vindumi, P. kaduri, and P. nigriceps. Pareas kaduri and P. nigriceps fide Poyarkov et al. 2022. 
EtymologyNamed after Herbert Hampton, a friend of G.A. Boulenger, who inferred in his description that the holotypes of the snake was collected by Hampton. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Boulenger, G.A. 1905. Descriptions of Two New Snakes from Upper Burma. J. Bombay Nat. Hist. Soc. 16: 235-236 - get paper here
  • 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
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  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - 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
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  • Liu, S.; Mo, M.; Li, M.; Li, B.; Luo, X.; Rao, D.; Li, S. 2024. Description of a New Species of the Pareas hamptoni Complex from Yunnan, China, with Confirmation of P. hamptoni Sensu Stricto in China (Squamata, Pareidae). Animals 2024, 14, 421 - get paper here
  • Luu, V. Q., Dinh, T. S., Lo, O. V., Nguyen, T. Q. and Ziegler, T. 2020. New records and an updated list of reptiles from Ba Vi National Park, Vietnam. Bonn Zoological Bulletin 69: 1-9.
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