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Oligodon annamensis LEVITON, 1953

IUCN Red List - Oligodon annamensis - Data Deficient, DD

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Leviton’s kukri snake, Annam Kukri Snake
Vietnamese: Răn khiêm trung bo
Russian: Annamskiy oligodon 
SynonymOligodon annamensis LEVITON 1953
Oligodon annamensis — GREEN et al. 2010
Oligodon annamensis — WALLACH et al. 2014: 483
Oligodon annamensis — NGUYEN et al. 2020 
DistributionVietnam (Lam Dong, Dak Lak, Annam), Cambodia

Type locality: Station Agricale, Blao, Haut Donai, Annam (Vietnam) [= Bao Loc, Lam Dong Province]  
TypesHolotype: USNM 90408, young female 
DiagnosisIdentification: Body robust, subcylindrical; head short, snout blunt and rounded; loreal absent; single preocular; single postocular; supralabials 6; Supralabials III-IV contact orbit; infralabials 6; maxillary teeth 8; eye moderate; pupil rounded; dorsals smooth, lacking apical pits; midbody scale rows 13; ventrals 159-170; subcaudals 30-44, paired; anal entire.

Coloration: Dorsum brown with 10 short, narrow white bars, thinly edged with black; forehead with several black-edged white blotches, including an interocular band, an interparietal bar and isolated patches on anterior snout; long oblique stripe on sides of neck; narrow light nuchal chevron; venter white, many ventrals and subcaudals covered partially or completely by quadrangular dark brown or black blotches.

Revised diagnosis. An Oligodon with medium body size in adults (adult male TL up to 412 mm); head small, comparatively narrow, snout not protruding; 13 dorsal scale rows at neck, midbody and before vent; ventrals 146–157, subcaudals 43–46 in males; ventrals 170, subcaudal 30 in female; single preocular, single postocular; loreal and presubocular absent; generally six supralabials, third and fourth entering orbit; six infralabials, anterior three or four contacting the first chin shield; internasals separate from prefrontals; nasal entire; single anterior and one or two posterior temporals; cloacal plate entire; hemipenis deeply bilobed, bearing two long and thin papillae, reaching the 20th subcaudal; 7–8 maxillary teeth; broad dark temporal streak; ground color on dorsum dark brown, 9–10+2–5 light crossbars edged with black on dorsum and tail; vertebral stripe absent; and ventral surfaces in life coral-red to orange with black transverse bars or quadrangular spots (Nguen et al. 2020: 22). 
CommentStatus: Not Evaluated. 
EtymologyThe specific name ‘‘annamensis’’ is a Latin adjective derived from ‘‘Annam’’, the historical name of Truong Son Mountains and central Vietnam. 
  • Das, I. 2010. A Field Guide to the Reptiles of Southeast Asia. New Holland, London. 376 pp. [book review in Sauria 33 (3): 51, and Russ. J. Herp. 18: 325] - get paper here
  • Green, Marc D.; Nikolai L. Orlov and Robert W. Murphy 2010. Toward a Phylogeny of the Kukri Snakes, Genus Oligodon. Asian Herpetological Research 1 (1): 1-21 - get paper here
  • Leviton A. E. 1960. Notes on the second specimen of the snake Oligodon annamensis Leviton. Wasmann Journal of Biology 18: 305–307 - get paper here
  • Leviton, Alan E. 1953. A new snake of the genus Oligodon from Annam. J. Washington Acad. Sci. 43 (12): 422-424 - get paper here
  • Neang, Thy and Seiha Hun. 2013. First record of Oligodon annamensis Leviton, 1953 (Squamata: Colubridae) from the Cardamom Mountains of southwest Cambodia. Herpetology Notes 6: 271-273.
  • NEANG, THY; L. LEE GRISMER & JENNIFER C. DALTRY 2012. A new species of kukri snake (Colubridae: Oligodon Fitzinger, 1826) from the Phnom Samkos Wildlife Sanctuary, Cardamom Mountains, southwest Cambodia. Zootaxa 3388: 41–55 - get paper here
  • Nguyen HN, Tran BV, Nguyen LH, Neang T, Yushchenko PV, Poyarkov NA. 2020. A new species of Oligodon Fitzinger, 1826 from the Langbian Plateau, southern Vietnam, with additional information on Oligodon annamensis Leviton, 1953 (Squamata: Colubridae). PeerJ 8: e8332 - get paper here
  • Nguyen, S.V., Ho, C.T. and Nguyen, T.Q. 2009. Herpetofauna of Vietnam. Chimaira, Frankfurt, 768 pp.
  • VASSILIEVA, ANNA B.; PETER GEISSLER, EDUARD A. GALOYAN, NIKOLAY Jr A. POYARKOV, ROBERT WAYNE VAN DEVENDER, WOLFGANG BÖHME 2013. A new species of Kukri Snake (Oligodon Fitzinger, 1826; Squamata: Colubridae) from the Cat Tien National Park, southern Vietnam. Zootaxa 3702 (3): 233–246 - 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.
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