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Dendrelaphis caudolineolatus (GÜNTHER, 1869)

IUCN Red List - Dendrelaphis caudolineolatus - Vulnerable, VU
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Higher TaxaColubridae, Ahaetuliinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymDendrophis caudolineolatus GÜNTHER 1869: 506
Dendrophis gregorii HALY 1888: 51
Dendrophis caudolineolatus — BOULENGER 1890: 339
Dendrophis caudolineolatus — BOULENGER 1894: 85
Dendrophis caudolineolatus — WALL 1921: 151
Ahaetulla caudolineolata — SMITH 1943: 247
Ahaetulla caudolineolata — TAYLOR 1950: 558
Dendrelaphis caudolineolatus — WALLACH et al. 2014: 216
Dendrelaphis caudolineolatus — ATTHANAGODA et al. 2025 
DistributionSri Lanka

Type locality: Ceylon  
Reproductionoviparous 
TypesSyntypes: BMNH 1946.1.23.21, a 610 mm male (B.H. Barnes) and 1858.2.17.19 (Higgins). 
DiagnosisUnfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 450 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy: SMITH (1943) synonymized D. caudolineolatus with Dendrophis effrenis, now a synonym of D. caudolineatus. Dendrophis effrenis was revalidated by Danushka et al. 2020 though.

Distribution: previously considered to occur in India (although Indian records have been assigned to another species, see Danushka et a. 2020).

Behavior: diurnal

Habitat: fully arboreal (Harrington et al. 2018)

Genome: Ruchira et al. 2025. 
References
  • Atthanagoda A, de Silva A, Vogel G, Udayanga S, Bandara C, Madawala M, Grismer L, Karunarathna S. 2025. A new species of Dendrelaphis Boulenger, 1890 (Reptilia: Colubridae) from an isolated misty mountain in the South Eastern dry part of Sri Lanka. Amphibian & Reptile Conservation 19(1): 28–47 (e340)
  • Blackburn, D.G. 1993. STANDARDIZED CRITERIA FOR THE RECOGNITION OF REPRODUCTIVE MODES IN SQUAMATE REPTILES. Herpetologica 49 (1): 118-132 - get paper here
  • Botejue, W. Madhava S.; Jayantha Wattavidanage 2012. Herpetofaunal diversity and distribution in Kalugala proposed forest reserve, Western province of Sri Lanka. Amphibian & Reptile Conservation 5 (2): 65-80(e38). - get paper here
  • Boulenger, George A. 1890. The Fauna of British India, Including Ceylon and Burma. Reptilia and Batrachia. Taylor & Francis, London, xviii, 541 pp. - get paper here
  • Boulenger, George A. 1894. Catalogue of the snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. British Mus. (Nat. Hist.), London, xi, 382 pp. - get paper here
  • Danushka, A.D. et al. 2020. A new species of Dendrelaphis Boulenger, 1890 (Reptilia: Colubridae) from the wet zone of Sri Lanka with a redescription of Dendrelaphis bifrenalis (Boulenger, 1890). TAPROBANICA 9 (1): 83-102 - get paper here
  • Günther,A. 1869. Report on two collections of Indian reptiles. Proc. Zool. Soc. London 1869: 500-507 - get paper here
  • 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
  • Samarawickrama, V.A.M.P.K.; H.I.G.C. Kumara, D.R.N.S. Samarawickrama 2019. Diversity of Reptiles in the Eastern and Southern parts of the Sinharaja Rain Forest. Journal of Tropical Forestry and Environment - get paper here
  • Smith, M.A. 1943. The Fauna of British India, Ceylon and Burma, Including the Whole of the Indo-Chinese Sub-Region. Reptilia and Amphibia. 3 (Serpentes). Taylor and Francis, London. 583 pp.
  • Somaweera, R., Pirro, S., & Pyron, R. A. 2025. The Complete Genome Sequences of 26 Species of Sri Lankan Snakes. Biodiversity Genomes - get paper here
  • Wall, FRANK 1921. Ophidia Taprobanica or the Snakes of Ceylon. Colombo Mus. (H. R. Cottle, govt. printer), Colombo. xxii, 581 pages - get paper here
  • Wall. F. 1921. Remarks on the lndian species of Dendrophis and Dendrelaphis. Records of the Indian Museum 22: 151 - 162 - 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.
  • WICKRAMASINGHE, L.J. MENDIS 2016. A new canopy-dwelling species of Dendrelaphis (Serpentes: Colubridae) from Sinharaja, World Heritage Site, Sri Lanka. Zootaxa 4162 (3): 504–518 - get paper here
  • Zug, G.R. & Mulcahy, D.G. 2019. Identification guide Amphibians and reptiles of South Tanintharyi. Fauna & Flora International, 101 pp.
 
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