← Species collection

Colubridae · Philippine record

Sulu Bronzeback

Dendrelaphis flavescensGAULKE 1994

Length
Length not yet addedAtlas entry awaiting completion
Venom status
Venom classification not yet addedHuman effects: atlas summary awaiting completion
Known venom effects
Effects not yet summarised in this atlas

A conspicuous metallic orange-yellow stripe runs from the neck along the front of the body. The cited diagnosis reports no black striping on the back, head sides or underside of the tail. Its atlas account links 2 named island or island-group records to the source literature.

OccurrenceConfirmed
Islands named2
Natural history6 sourced topics
References3

Literature updated 2026-10-07 · Editorial review pending

Explore the island records ↓

Species portrait

Dendrelaphis flavescens

Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.

The illustrated collection

Adult & juvenile

Adult · study plate

Dendrelaphis flavescens

Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.

Juvenile · study plate

Dendrelaphis flavescens

Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.

Life stages will be labelled from the contributor’s information. Images alone do not establish identification or a locality record.

Media provenance

Every image carries its source.

Contributor images are forthcoming. Photographs and illustrations will retain their individual credits, permissions and evidence notes.

A closer look

Natural history & identification

Appearance & identification

A conspicuous metallic orange-yellow stripe runs from the neck along the front of the body. The cited diagnosis reports no black striping on the back, head sides or underside of the tail.

Evidence & scope

Literature documented · Diagnosis; Gaulke (1994), p. 138

Species-level database summary; literature review, not expert validation.

The cited account does not establish population-wide variation or the conditions at every Philippine locality.

Ecology & habitat

Gaulke’s observations placed the snakes on the floor of primary and secondary forest. This conflicts with a broad arboreal classification also reproduced in the database; both should not be collapsed into a single habitat label.

Evidence & scope

Literature documented · Comment: Habitat; Gaulke (1994)

Species-level database summary; literature review, not expert validation.

The cited account does not establish population-wide variation or the conditions at every Philippine locality.

Diet & foraging

One animal maintained in captivity for about a year accepted live geckos but refused mice and locusts. This observation does not establish the diet of wild populations.

Evidence & scope

Literature documented · Comment: Diet; captive animal SMF 75174

Species-level database summary; literature review, not expert validation.

The cited account does not establish population-wide variation or the conditions at every Philippine locality.

Reproduction

The species account records egg-laying reproduction. A verified Philippine clutch-size range, incubation interval and breeding calendar are not established here.

Evidence & scope

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.

Philippine distribution

The atlas records Dendrelaphis flavescens from these named Philippine areas: Sulu, Tawi-Tawi. These are literature areas rather than a continuous range boundary.

Evidence & scope

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.

Taxonomic context

Dendrelaphis flavescens is retained in the atlas’s dated checklist under Colubridae. The authority is GAULKE 1994. Earlier names and the original source notes are preserved below for comparison.

Evidence & scope

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

Where this species is recorded

Philippines
Dendrelaphis flavescens — all named islandsTawi-Tawi

Documented islands: gold · island groups: dashed circles

Island-level records · not continuous habitat coverage. Dashed circles locate groups, not individual observations.

Philippine distribution

Documented places

2 named islands / island groups

Select an island to read its distribution record and sources. Uncoloured islands are not evidence of absence.

Distribution record & sources

Philippines (Sulu Archipelago: (Bongao, Bubuan, Sanga-Sanga, Tawi-Tawi) Type locality: Sanga Sanga, Sulu Archipelago,Philippines.

References attached to this species account. Island-specific evidence is shown separately where available.

The Reptile Database — species checklist, 17 June 2026 ↗

Synopsis of the Snakes of the Philippines: A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature ↗

Dendrelaphis flavescens — The Reptile Database species account ↗

Living with wildlife

Give this snake space.

Venom classification not yet added · Effects not yet summarised in this atlas

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 aid

Species record

Taxonomy, occurrence & evidence.

Identity

Accepted name
Dendrelaphis flavescens
Common names
Sulu Bronzeback, Sulu Islands Tree Snake · Sulu-Bronzenatter
Authority
GAULKE 1994
Year described
1994
Taxonomic status
Accepted species
Family
Colubridae
Genus
Dendrelaphis
Species epithet
flavescens
Persistent ID
PH-SERP-A9AA2BF6F5
Checklist checked
2026-09-05

Philippine occurrence

Status
Present
Confidence
Confirmed
Basis
2018 Philippine synopsis treatment plus current RDB listing
Islands named
Sulu, Tawi-Tawi

Range noteCountry/island text is not a range polygon or locality record.

Source distribution statement

Philippines (Sulu Archipelago: (Bongao, Bubuan, Sanga-Sanga, Tawi-Tawi) Type locality: Sanga Sanga, Sulu Archipelago,Philippines.

Knowledge coverage

EndemismResearch pending
EcologyLiterature documented
VenomVenom classification not yet added
Effects not yet summarised in this atlas
Detailed research: Research pending
ConservationResearch pending

Names through time

Nomenclatural trail

Dendrelaphis caudolineatus flavescens GAULKE, 1994 Dendrelaphis flavescens — VAN ROOIJEN & VOGEL 2012 Dendrelaphis flavescens — WALLACH et al. 2014: 217 Dendrelaphis flavescens — LEVITON et al. 2018

Taxonomic and source notes

Behavior: diurnal Habitat: fully arboreal (Harrington et al. 2018), but Gaulke 1994 says “all sighted specimens of D. c. flavescens were observed on the floor of primary and secondary forest.” Diet: SMF 75174 was kept alive in a terrarium for about 12 months, feeding on live geckos. Locusts and mice were not taken (Gaulke 1994). There seem to be no live photos. Gaulke 1994 says “not a rare snake. In all, 10 specimens were sighted, but as it is a very fast snake,few were caught”.

References attached to this record

2026

The Reptile Database — species checklist, 17 June 2026

Uetz, P.; Freed, P.; Aguilar, R.; Reyes, F.; Kudera, J.; Hošek, J. (eds.)

Open source ↗
2018

Synopsis of the Snakes of the Philippines: A Synthesis of Data from Biodiversity Repositories, Field Studies, and the Literature

Leviton, A. E.; Siler, C. D.; Weinell, J. L.; Brown, R. M.

Proceedings of the California Academy of Sciences 64(14): 399–568

DOI: 10.5281/zenodo.11512589

Open source ↗
n.d.

Dendrelaphis flavescens — The Reptile Database species account

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.

Open source ↗