Additions to the Snake Fauna of Southern Laos, with the Second Laotian Specimen of Naja siamensis (Laurenti, 1768) and the First Country Record of Oligodon taeniatus (Günther, 1861) (Squamata, Serpentes)

Alexandre Teynié, Patrick David

Abstract


A small, recent collection of reptiles from Paksé and from Xépian National Biodiversity and Conservation Area, Champasak Province, southern Laos, contains the second Laotian specimen of the Indochinese spitting Cobra, Naja siamensis (Laurenti, 1768). This species was previously known from this country from a single specimen observed in Savannakhet Province, in the north of Central Laos. This second specimen, the first one to have been preserved for this country, is described in details. It shows a pattern slightly different from the first Laotian specimen. This new specimen confirms the occurrence of this medically important species in different parts of the Mekong valley. A juvenile specimen of Oligodon taeniatus (Günther, 1861) proves the first voucher specimen of this species recorded from Laos. Specimens previously cited from the Vientiane area as Oligodon taeniatus proved to belong either to Oligodon mouhoti (Boulenger, 1914) or to an unidentified taxon. The list of snake species known from Champasak Province is updated; it currently includes 37 snake species.

Keywords


Reptilia; Serpentes; Laos; Xépian National Biodiversity and Conservation Area; Champasak Province; Naja siamensis; Oligodon taeniatus; Oligodon mouhoti

Full Text:

PDF

References


Campden-Main S. M. (1969), «The status of Oligodon taeniatus (Günther), 1861, and Oligodon mouhoti (Boulenger), 1914 (Serpentes, Colubridae)», Herpetologica, 25(4), 295 – 299.

Campden-Main S. M. (1970), A Field Guide to the Snakes of South Vietnam, Smithsonian Institution, Washington.

Chan-ard T., Stuart B. L., and Wüster W. (2000), «First record of Indochinese Spitting Cobra Naja siamensis Laurenti (Serpentes: Elapidae) from Laos, with comments on the genus in the country», Nat. Hist. Bull. Siam. Soc., 48, 149 – 152.

Cox M. J., Van Dijk P. P., Nabhitabhata J., and Thirakhupt K. (1998), A Photographic Guide to Snakes and others reptiles of Peninsular Malaysia, Singapore and Thailand, Ralph Curtis Books, Sanibel Island, Florida.

David P. and Ineich, I. (1999), «Les serpents venimeux du monde: systématique et répartition», Dumérilia, 3, 3 – 499.

Deuve J. (1970), «Serpents du Laos», O.R.S.T.O.M. Paris Mém., 39, 1 – 251.

Deuve J. (1985), Serpents du Laos. Dessins en couleurs et documents manuscrits. Unpublished manuscript notes, deposited in the library of the «Taxonomie-collection — Reptiles and Amphibiens» Unit, Muséum National d’Histoire Naturelle, Paris.

Dowling H. G. (1951), «A proposed standard system of counting ventrals in snakes», Br. J. Herpetol., 1(5), 97 – 99.

Günther A. C. L. G. (1864), The Reptiles of British India, Ray Society, London.

Laurenti J. N. (1768), Josephi Nicolai Laurenti Austriaci Viennensis Specimen Medicum, Exhibens Synopsin Reptilium Emendatam cum Experimentis circa Venena et Antidota Reptilium Austriacorum [....], Joan. Thomae Nob de Trattnern, Wien.

Malhotra A. and Thorpe R. S. (2004), «A phylogeny of four mitochondrial gene regions suggests a revised taxonomy for Asian pitvipers (Trimeresurus and Ovophis)», Mol. Phylogen. Evol., 32, 83 – 100.

Nabhitabhata J., Chan-ard T., and Chuaynkern Y. (2004 [«2000»]), Amphibians and Reptiles in Thailand, Office of Environmental Policy and Planning, Bangkok.

Saint Girons H. (1972), «Les serpents du Cambodge», Mém. Mus. Natl. d’Hist. Nat. Nouv. Sér. A. Zool., 74, 1 – 170, pls. 1 – 42.

Slowinski J. B. and Wüster W. (2000), «A new cobra (Elapidae: Naja) from Myanmar (Burma)», Herpetologica, 56(2), 257 – 270.

Smith M. A. (1943), The Fauna of British India, Ceylon and Burma, Including the Whole of the Indo-Chinese Subregion. Reptilia and Amphibia. Vol. III. Serpentes, Taylor and Francis, London.

Stuart B. L. (1999), «Amphibians and Reptiles», in: Wildlife in Lao PDR: 1999 Status Report, J. W. Duckworth, R. E. Salter and K. Khounboline (eds.), IUCN-The World Conservation Union – Wildlife Conservation Society – Centre for Protected Areas and Watershed Management, Vientiane, pp. 43 – 67, pls. 8 – 10.

Teynié A., David P., Olher A., and Luanglath K. (2004), «Notes on a collection of Amphibians and Reptiles from southern Laos, with a discussion of the occurrence of Indo-Malayan species», Hamadryad, 29(1), 33 – 62.

Thebaud G. (2004), Prospections floristiques dans la réserve de Sépian et sur le plateau des Bolovens. Unpublished report, Société d’Histoire Naturelle Alcide d’Orbigny/Institut des Herbiers Universitaires de Clermont-Ferrand, Clermont-Ferrand.

Wüster W. (1996), «Taxonomic changes and toxicology: systematic revisions of the Asiatic cobras (Naja naja species complex)», Toxicon, 34(4), 399 – 406.

Wüster W. and Thorpe R. S. (1987), «Geographic variation in the cobras of the genus Naja in south-east Asia: a multivariate analysis», in: J. J. van Gelder, H. Strijbosch and P. J. M. Bergers (eds.), Proc. of the 4th Ord. Gen. Meeting Soc. Eur. Herpetol., Nijmegen, August 17 – 21 1987, Faculty of Sciences, Nijmegen, pp. 449 – 452.

Wüster W. and Thorpe R. S. (1989), «Population affinities of the Asiatic cobra (Naja naja) species complex in south-east Asia: reliability and random resampling», Biol. J. Linnean Soc., 36, 391 – 409.

Wüster W. and Thorpe R. S. (1991), «Asiatic cobras: systematics and snakebite», Experientia, 47, 205 – 209.

Wüster W. and Thorpe R. S. (1992a), «Asiatic cobras: population systematics of the Naja naja species complex (Serpentes: Elapidae) in India and Central Asia», Herpetologica, 48(1), 69 – 85.

Wüster W. and Thorpe R. S. (1992b), «Dentitional phenomena in cobras revisited: spitting and fang structure in the asiatic species of Naja (Serpentes: Elapidae)», Herpetologica, 48(4), 424 – 434.

Wüster W. and Thorpe R. S. (1994), «Naja siamensis, a cryptic species of venomous snake revealed by mtDNA sequencing», Experientia, 50(1), 75 – 79.

Wüster W., Thorpe R. S., Cox M. J., Jintakune P., and Nabhitabhata J. (1995), «Population systematics of the snake genus Naja (Reptilia: Serpentes: Elapidae) in Indochina: multivariate morphometrics and comparative mitochondrial DNA sequencing (cytochrome oxidase I)», J. Evol. Biol., 8(4), 493 – 510.

Wüster W., Warrell D. A., Cox M. J., Jintakune P., and Nabhibhata J. (1997), «Redescription of Naja siamensis (Serpentes: Elapidae), a widely overlooked cobra from S. E. Asia: geographic variation, medical importance and designation of a neotype», J. Zool. Lond., 243(4), 771 – 788.




DOI: https://doi.org/10.30906/1026-2296-2007-14-1-39-44

Refbacks

  • There are currently no refbacks.



You can subscribe to the print or electronic version of the journal on the site of EastView Company. If you have any questions, please write to the email sales@ivis.ru