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Elapoidis sumatrana BLEEKER, 1860

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Higher TaxaColubridae, incertae sedis, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymElaphis sumatranus BLEEKER 1860: 285
Elaphis sumatranus — LUDEKING 1860: 437
Elapoidis sumatrana — VOGEL et al. 2018 
DistributionIndonesia (Sumatra)

Type locality: (neotype locality) “Fort de Kock,” now Bukittinggi (0°18’32’’ S, 100°22’13’’ E), Sumatera Barat (West Sumatra) Province, Sumatra, Indonesia; elevation ca. 920 m.  
Reproductionoviparous, clutches with 2 – 4 eggs (Manthey, Grossmann 1997) 
TypesNeotype: BMNH 1928.2.18.17, adult male, from “Fort de Kock, 920 m, West coast of Sumatra” 
DiagnosisDiagnosis. A species of the genus Elapoidis charac- terized by the combination of the following characters: (1) total length up to about 48 cm; (2) relative tail length around 0.309 in one male and 0.268 – 0.274 in females; (3) ventrals 138 – 143 in males and 140 – 142 in females; (4) subcaudals in males around 84 and 75 – 79 in fe- males; (5) 1 postocular (in one specimen, 2 on one side); (6) upper labials with white margins; (7) anterior half of the body yellow with a dark brown vertebral stripe and a series of small dark brown spots on each side; posterior half of back uniform dark brown (Vogel et al. 2018). 
CommentSynonymy: Elapoidis sumatrana was resurrected from synonymy by Vogel et al. 2018 based on geography and morphology. The resurrection of E. sumatrana is somewhat dubious though, with a relatively small sample size and largely overlapping characters of fusca and sumatranus, and without any molecular data (see diagnosis without a comparison to fusca, for instance), hence this revalidation appears a bit preliminary. 
EtymologyNamed after the type locality. 
  • Bleeker, P. 1860. Over de reptilien-fauna van Sumatra. Nat. Tijdschr. Ned. Ind., Batavia, 21: 284-298. - get paper here
  • Ludeking E. W. A. 1860. Reptilien uit de omstreken van Fort de Kock. Nat. Tijdschr. Ned. Indië, 21 (5, part I): 437 – 438
  • Vogel, Gernot; Patrick David, Fachrul Reza 2018. A Contribution to the Systematics of the Indonesian Snake Genus Elapoidis Boie, 1827 (Squamata: Colubridae). Russ. J. Herpetol. 25 (2): 113-120 - get paper here
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