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Macrocalamus chanardi DAVID & PAUWELS, 2005

IUCN Red List - Macrocalamus chanardi - Least Concern, LC

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Higher TaxaColubridae, Calamariinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Chanard’s Reed Snake 
SynonymMacrocalamus chanardi DAVID & PAUWELS 2005
Macrocalamus chanardi — WALLACH et al. 2014: 417
Macrocalamus chanardi — QUAH et al. 2019 
DistributionWest Malaysia (Perak)

Type locality: “Larut Hills, Perak, elevation 3500-4500 ft.”, now Bukit Larut, Perak, West Malaysia.  
TypesHolotype: BMNH 1900.6.14.17 
DiagnosisDiagnosis: – Macrocalamus chanardi is characterized by (1) a red, pink or orange venter in life; (2) the presence of a single dark ventrolateral stripe on each side, composed of the dark colour of the outer edges of ventral plates, bordered above by a more or less faint light yellow or cream stripe; (3) dorsal colour brown bordered by, at least on the anterior part of body, on each side a dorsal row of white (yellow or ochre in life) stripe with dark-edged ocelli that are sometimes reduced to small black spots; (4) at least two, often three or four yellowish-ochre oblique bars, the first one on temporals, extending from the parietals to the throat, other(s) parallel to this temporal streak, extending on the neck from the top of the back down to the ventrals, (5) a ratio TaL/TL at least equal to 0.090 in females and 0.140 in males.
This species is distinguished from all other species, except Macrocalamus lateralis, by (1) the uniform “red” color of its venter (either uniform yellow or powdered or chequered in other species) and (2) the presence of light dorsolateral ocelli. From Macrocalamus lateralis, with which it shares these two characters, Macrocalamus chanardi is distinguished by (1) the presence of loreal scale, (2) a higher number of subcaudal scales, (3) the presence of a a single dark ventrolateral stripe in M. chanardi instead of two close dark ventrolateral stripes separated by a narrow light stripe in M. lateralis, (4) the presence of a light dorsolateral stripe on which are located, in part for about half of their height, dorsolateral ocelli in M. lateralis (dorsolateral pale stripe absent in M. chanardi), (5) the absence of a dark vertebral stripe, present in M. lateralis, (6) the presence of two to six parallel streaks on the body in M. chanardi, vs. a single yellow oblique streak on the neck and no streak present on the body in M. lateralis. 
EtymologyNamed after Mr. Tanya Chan-ard (National Science Museum, Pathumthani, Thailand), who was instrumental in collecting the Thai specimen. 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Das, I. 2012. A Naturalist's Guide to the Snakes of South-East Asia: Malaysia, Singapore, Thailand, Myanmar, Borneo, Sumatra, Java and Bali. Oxford J, ohn Beaufoy Publishing - get paper here
  • David, P. & Pauwels, O.S.G. 2004. A re-evaluation of the taxonomy of Macrocalamus lateralis Günther, 1864 (Serpentes: Colubridae), with the descriptions of two new species. Raffl. Bull. Zool., 52(2): 635-645 - get paper here
  • Grismer, L. Lee; Chan K. Onn, Jesse L. Grismer, Perry L. Wood, Jr., and A. Norhayati 2010. A CHECKLIST OF THE HERPETOFAUNA OF THE BANJARAN BINTANG, PENINSULAR MALAYSIA. Russ. J. Herpetol. 17 (2): 147-160 - get paper here
  • Quah, Evan S H; Shahrul Anuar, Lee L Grismer, Perry L Wood, Siti Azizah Mohd Nor 2019. Systematics and natural history of mountain reed snakes (genus Macrocalamus; Calamariinae). Zoological Journal of the Linnean Society, 188: 1236 - 1276 - get paper here
  • Vogel, Gernot and Hans Kam Han-Yuen 2010. Death feigning behavior in three colubrid species of tropical Asia. Russ. J. Herpetol. 17 (1): 15-21 - 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.
  • Yaakob, Norsham Suhaina and Boo Liat Lim 2002. A new species of mountain reed snake, Macrocalamus gentingensis, from Genting Highlands, Pahang, Peninsular Malaysia. Hamadryad 27 (1):83-89 - get paper here
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