Boiga dendrophila divergens
- Type
- Illustration
- Credit
- Mario Lutz
- Usage rights
- Copyright Mario Lutz. Authorised for display in this atlas; no third-party reuse licence granted.
- Evidence status
- Illustration; not a specimen or occurrence record.
Colubridae · Global account with Philippine editorial coverage
Boiga dendrophila(BOIE, 1827)
Venom: Denmotoxin blocks nerve–muscle signalling in bird preparations, with much weaker activity in mouse preparations. This purified-toxin result is not a prediction of a human bite outcome.
Dashevsky et al. (2018), Abstract; Pawlak et al. (2006), Abstract and nerve–muscle experiments
Venom effects and medical significance are different from toxicity rankings. Do not handle a snake on the basis of this summary.
A striking tree snake associated with riverbank vegetation. In Palawan, resting animals have been documented on mangrove branches along the Iwahig River.
Literature updated 2026-10-07 · Editorial review pending
Explore the island records ↓The illustrated collection
Life stages will be labelled from the contributor’s information. Images alone do not establish identification or a locality record.
Media provenance
One species · Across borders
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Shading identifies recorded countries or named islands, not continuous habitat coverage. Uncoloured areas do not establish absence.
Natural Earth · 1:50m · public domain. Small islands may lack an outline.
Explore the distribution
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Use “Worldwide records” to include distant introduced and uncertain records in the map view.
RDB internally contradicts its accepted Bornean annectens subspecies with a not-Borneo comment. Primary Weinell et al. 2020/2021 retains annectens and Pui/Das field record confirms Sarawak; Borneo retained under that taxonomic concept. Continental records belong to melanota and are omitted.
Boiga melanota is treated separately; continental records under that former subspecies are not transferred to dendrophila.
A closer look
Uses mangrove vegetation along the Iwahig River, including a semi-disturbed riverbank.
Literature documented · Account, Iwahig observations
Palawan population treated as B. d. multicincta.
Several individuals rested on mangrove branches above the riverbank; one approximately two-metre animal occupied Scyphiphora hydrophyllacea.
Literature documented · Account, Fig. 1 description
Direct resting-site observations.
Encounter frequency is not a population-density estimate.
Habitat degradation and illegal collection are local conservation concerns. The 2014 account highlights the need for habitat protection and trade monitoring.
Literature documented · Account, conservation discussion
Palawan; dated conservation context.
No current trade volume or Red List category is inferred.
The species account records egg-laying reproduction. A verified Philippine clutch-size range, incubation interval and breeding calendar are not established here.
Literature documented · Reproduction field
Reproductive mode reported for this named species.
Mode alone does not establish litter or clutch size, seasonal timing, or captive husbandry requirements.
The atlas records Boiga dendrophila from these named Philippine areas: Luzon, Palawan, Mindanao, Panay, Polillo, Balabac. These are literature areas rather than a continuous range boundary.
Literature documented · Existing checklist occurrence statement and distribution review
The original evidence level is retained.
A country listing cannot establish an island or a precise locality.
Boiga dendrophila is retained in the atlas’s dated checklist under Colubridae. The authority is (BOIE 1827). Earlier names and the original source notes are preserved below for comparison.
Literature documented · Checklist identity and nomenclatural trail
Checklist verified 2026-09-05; not a newly revised taxonomic backbone.
Historical names can cover different biological concepts; synonyms should not be used to transfer records automatically.
Across the archipelago
Documented islands: gold · island groups: dashed circles
Island-level records · not continuous habitat coverage. Dashed circles locate groups, not individual observations.
Philippine distribution
Select an island to read its distribution record and sources. Uncoloured islands are not evidence of absence.
Indonesia (Bangka, Belitung, Java, Bali, Sulawesi, Riau Archipelago, Sumatra, Natuna islands); Cambodia, Myanmar, W Malaysia (Malaya; Johor: Pulau Sibu); Thailand; Vietnam, Philippines (Panay) annectens: Indonesia (Kalimantan, Borneo); Brunei Darussalam; Malaysia (East Malaysia). Type locality: Borneo. dendrophila: Indonesia (Java); Type locality: Java [Indonesia] divergens: Philippines (Luzon, Polillo); Type locality: Mount Makiling, Laguna Province, Luzon. gemmicincta: Indonesia (Sulawesi, incl. Togian): Type locality: restricted to Sulawesi by BRONGERSMA 1934. latifasciata:Philippines (Mindanao); Type locality: Zamboanga and Butuan, Mindanao. levitoni: Panay (and probably other islands of the West Visayas region); Type locality: Sitio Batiw, Barangay Badiangan, Municipality of Pandan, Province Antique, Panay, Philippines. multicincta: Philippines (Balabac, Palawan); Type locality: restricted to Puerto Princesa, Palawan by BRONGERSMA 1934. occidentalis: Indonesia (Babi, Batu Archipelago, Nias, Sumatra); Type locality: Nias.
The atlas records Boiga dendrophila from these named Philippine areas: Luzon, Palawan, Mindanao, Panay, Polillo, Balabac. These are literature areas rather than a continuous range boundary.
The Reptile Database — species checklist, 17 June 2026 ↗Existing checklist occurrence statement and distribution review
Synopsis of the Snakes of the Philippines: A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature ↗Existing checklist occurrence statement and distribution review
References attached to this species account. Island-specific evidence is shown separately where available.
The Reptile Database — species checklist, 17 June 2026 ↗
Three-Finger Toxin Diversification in the Venoms of Cat-Eye Snakes (Colubridae: Boiga) ↗
Philippine subspecies
Luzon and Polillo, Philippines.
Mindanao, Philippines.
Panay, Philippines; other West Visayan islands are suggested but unconfirmed.
Palawan and Balabac, Philippines.
Philippine subspecies and occurrence follow The Reptile Database, checked 7 October 2026.
Living with wildlife
Venomous · rear-fanged · Neurotoxic · bird-selective denmotoxin (laboratory)
Observe from a distance. Do not handle, corner or capture a snake to identify it. An incomplete venom account is not evidence that a species is safe to handle.
After a suspected snakebite, keep the person still and arrange urgent medical care. Avoid tight tourniquets, cutting, suction and unproven remedies. Do not wait to identify the snake before seeking help.
WHO guidance on snakebite first aidSpecies record
Range noteCountry/island text is not a range polygon or locality record.
Indonesia (Bangka, Belitung, Java, Bali, Sulawesi, Riau Archipelago, Sumatra, Natuna islands); Cambodia, Myanmar, W Malaysia (Malaya; Johor: Pulau Sibu); Thailand; Vietnam, Philippines (Panay) annectens: Indonesia (Kalimantan, Borneo); Brunei Darussalam; Malaysia (East Malaysia). Type locality: Borneo. dendrophila: Indonesia (Java); Type locality: Java [Indonesia] divergens: Philippines (Luzon, Polillo); Type locality: Mount Makiling, Laguna Province, Luzon. gemmicincta: Indonesia (Sulawesi, incl. Togian): Type locality: restricted to Sulawesi by BRONGERSMA 1934. latifasciata:Philippines (Mindanao); Type locality: Zamboanga and Butuan, Mindanao. levitoni: Panay (and probably other islands of the West Visayas region); Type locality: Sitio Batiw, Barangay Badiangan, Municipality of Pandan, Province Antique, Panay, Philippines. multicincta: Philippines (Balabac, Palawan); Type locality: restricted to Puerto Princesa, Palawan by BRONGERSMA 1934. occidentalis: Indonesia (Babi, Batu Archipelago, Nias, Sumatra); Type locality: Nias.
Names through time
Dipsas dendrophila BOIE 1827: 549 Dipsas dendrophila — WAGLER 1828 Dipsadomorphus dendrophilus — ANDERSSON 1916: 32 Dipsadomorphus dendrophilus — LIDTH DE JEUDE 1922 Naja celebensis AHL 1933: 580 Dipsadomorphus dendrophilus — BRONGERSMA 1933 Boiga dendrophila — MANTHEY & GROSSMANN 1997: 321 Boiga dendrophila — NGUYEN et al. 2009 Boiga dendrophila — WALLACH et al. 2014: 102 Boiga dendrophilla — KHOERUNISA et al. 2021 (in error) Boiga dendrophila annectens (BOULENGER 1896) Boiga dendrophila annectens — ROOIJEN & ROOIJEN 2004 Boiga dendrophila annectens — KRUG 2017 Boiga dendrophila annectens — WEINELL et al. 2021 Boiga dendrophila divergens TAYLOR 1922 Boiga dendrophila divergens TAYLOR 1922: 201 Boiga dendrophila divergens — SILER et al. 2011 Boiga dendrophila divergens — MCLEOD et al. 2011 Boiga dendrophila divergens — BROWN et al. 2012 Boiga dendrophila divergens — BROWN et al. 2013 Boiga dendrophila divergens — WEINELL et al. 2020 Boiga dendrophila gemmicincta (DUMÉRIL, BIBRON & DUMÉRIL 1854) Triglyphodon gemmi-cinctum — DUMÉRIL & BIBRON 1854: 1091 Boiga dendrophila atra KOPSTEIN 1936 Boiga dendrophila gemmicincta — VOGEL 2000 Boiga dendrophila gemmicincta — GROEN 2008 Boiga dendrophila gemmicincta — WANGER et al 2011 Boiga dendrophila gemmicincta — SCHMIDT 2012 Boiga dendrophila gemmicincta — KOCH 2012 Boiga dendrophila gemmicincta — LAITA 2013 Boiga dendrophila gemmicincta — GLÄSSER-TROBISCH & TROBISCH 2020 Boiga dendrophila latifasciata (BOULENGER 1896) Boiga dendrophila latifasciata — VOGEL 2000 Boiga dendrophila latifasciata — SANGUILA et al. 2016 Boiga dendrophila latifasciata — KRUG 2017 Boiga dendrophila levitoni GAULKE, DEMEGILLO & VOGEL 2005 Boiga dendrophila levitoni — GAULKE 2011: 246 Boiga dendrophila levitoni — GAULKE 2019: 48 Boiga dendrophila levitoni — WEINELL et al. 2021 Boiga dendrophila multicincta (BOULENGER 1896) Dipsadomorphus dendrophilus multicinctus BOULENGER 1896: 71 Dipsadomorphus dendrophilus var. multicincta — BOETTGER 1898 Boiga dendrophila multicincta — BRONGERSMA 1934: 216 Boiga dendrophila multicincta — MINTON & DUNSON 1978 Boiga dendrophila multicincta — WEINELL et al. 2019 Boiga dendrophila occidentalis BRONGERSMA 1934 Boiga dendrophila occidentalis BRONGERSMA 1934 Dipsadomorphus dendrophilus — WERNER 1900 Boiga dendrophila occidentalis — VOGEL 2000 Boiga dendrophila occidentalis — WEINELL et al. 2021
Phylogenetics: DNA barcodes suggested multiple species within this species (Laopichienpong et al. 2016). Weinell et al. 2020 elevated Boiga dendrophila melanota (BOULENGER 1896) to full species status and indicated the future elevation of B. d. annectens, B. d. levitoni, B. d. divergens and B. d. occidentalis to full species. However, Weinell et al. 2021 did not follow through with the latter recommendation. They also found that gemmicincta is closely related to dendrophila and may not warrant subspecies status. Habitat: partly arboreal (Harrington et al. 2018). Distribution: Reports from Singapore represent D. melanota. See also Figueroa et al. 2023. Not in Borneo fide Das 2023.
Uetz, P.; Freed, P.; Aguilar, R.; Reyes, F.; Kudera, J.; Hošek, J. (eds.)
Leviton, A. E.; Siler, C. D.; Weinell, J. L.; Brown, R. M.
Proceedings of the California Academy of Sciences 64(14): 399–568
Dolorosa, R. G.
The Palawan Scientist 6(1)
Journal abstract/account consulted; Palawan observations of the multicincta population.
Dashevsky, D.; Debono, J.; Rokyta, D.; Nouwens, A.; Josh, P.; Fry, B. G.
Journal of Molecular Evolution 86: 531–545
DOI: 10.1007/s00239-018-9864-6
Explicit genus-wide venom ecology; directly samples B. cynodon and B. dendrophila. Species-specific toxin activity is not extrapolated across the genus.
Pawlak, J.; Mackessy, S. P.; Fry, B. G.; Bhatia, M.; Mourier, G.; Fruchart-Gaillard, C.; Servent, D.; Ménez, R.; Stura, E.; Ménez, A.; Kini, R. M.
Journal of Biological Chemistry 281: 29030–29041
Purified toxin and experimental nerve–muscle preparations; not a human clinical study.
Uetz, P.; Hallermann, J. et al. (editors)
Public species fields consulted for bounded biological summaries. Primary sources quoted within the database were not independently examined unless explicitly stated. The catalogue name may differ from the current source title.