Ahaetulla fasciolata
Recorded in Indonesia: Natuna, Riau, Sumatra; Kalimantan, Borneo.
Indonesia · Island occurrence guide
Natuna Islands
18 existing species accounts name this island or island group. This index shows the current sourced collection, not a complete island checklist.
Sumatra · Regional landscape
Place the record in context.
The UNESCO rainforest property links Gunung Leuser, Kerinci Seblat and Bukit Barisan Selatan. These protected landscapes preserve lowland and mountain forest along Sumatra’s western spine.
This describes the wider region. Local vegetation and the habitat of an individual species require their own evidence.
The wider region
Sumatra
Sumatra and associated offshore islands, including Bangka–Belitung, Riau and Natuna.
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Gold: islands with records in this collection. Coastlines show geography, not the range of any individual species. Only Indonesian territory is highlighted.
Landscape context
Read the habitats.
These guides describe documented environments in the wider Sumatra region. They do not assign every listed species to every habitat or protected site.
Habitat · 01
Rainforest layers
Follow a forest from its crowns to the living ground.
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Habitat · 02
Montane forest
Forested ridges, mountain lakes and changes along a slope.
Explore the habitat ↗
Habitat · 03
Freshwater & peat swamps
Read lakes, floodplains and waterlogged forest separately.
Explore the habitat ↗Read the original scope
Behind the occurrence.
Choose an account recorded in Natuna Islands. Its country-level evidence retains the named islands and qualifications; it is not a record of a sighting at an exact map point.
The shared collection
Snakes recorded here.
Each card opens the same species account used by the country lists. A shared island record does not imply occurrence in all countries sharing that island.
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001Speckle-headed Whipsnake
Ahaetulla fasciolata
(FISCHER, 1885)
- 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
BorneoMalaysia
Gunther’s whip snake
Ahaetulla prasina
(BOIE, 1827)
- Length
- Length not yet addedAtlas entry awaiting completion
- Venom status
- Mildly venomousHuman effects: atlas summary awaiting completion
- Known venom effects
- Effects not yet summarised in this atlas
BorneoMalaysia
Blunthead Slug Snake
Aplopeltura boa
(BOIE, 1828)
- 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
BorneoMalaysia
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004Smooth Slug Snake
Asthenodipsas laevis
(BOIE, 1827)
- 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
BorneoMalaysia
Gold-ringed Cat Snake
Boiga dendrophila
(BOIE, 1827)
- Length
- Length not yet addedAtlas entry awaiting completion
- Venom status
- Venomous · rear-fangedHuman effects: atlas summary awaiting completion
- Known venom effects
- Neurotoxic · bird-selective denmotoxin (laboratory)
BorneoMalaysia
White-spotted Cat Snake
Boiga drapiezii
(BOIE, 1827)
- Length
- Length not yet addedAtlas entry awaiting completion
- Venom status
- Venomous · rear-fangedHuman effects: atlas summary awaiting completion
- Known venom effects
- Effects not yet summarised in this atlas
BorneoMalaysia
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007Black-headed Cat Snake
Boiga nigriceps
(GÜNTHER, 1863)
- 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
BorneoMalaysia
Variable Reed Snake
Calamaria lumbricoidea
BOIE, 1827
- Length
- Length not yet addedAtlas entry awaiting completion
- Venom status
- Non-venomousNon-venomous does not mean safe to handle
- Known venom effects
- Not applicable · non-venomous
BorneoMalaysia
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009Southeast Asian Bockadam
Cerberus schneiderii
(SCHLEGEL, 1837)
- 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
Malaysia
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010Paradise Tree Snake
Chrysopelea paradisi
BOIE, 1827
- 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
BorneoMalaysia
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011Twin-barred Tree Snake
Chrysopelea pelias
(LINNAEUS, 1758)
- 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
BorneoMalaysia
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012Ashy Pit Viper
Craspedocephalus puniceus
(BOIE, 1827)
- 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
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013Red-tailed Pipe Snake
Cylindrophis ruffus
(LAURENTI, 1768)
- 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
BorneoMalaysia
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014Gray Bronzeback
Dendrelaphis caudolineatus
(GRAY, 1834)
- 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
BorneoMalaysia
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015Painted Bronzeback
Dendrelaphis pictus
(GMELIN, 1789)
- 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
BorneoMalaysia
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016Malayan Bridal Snake
Dryocalamus subannulatus
(DUMÉRIL, BIBRON & DUMÉRIL, 1854)
- 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
BorneoMalaysia
Image not yet added
017Dryocalamus tristrigatus
(GÜNTHER, 1858)
- 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
BorneoMalaysia
Image not yet added
018(Brown or) Red Whip Snake
Dryophiops rubescens
(GRAY, 1834)
- 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
BorneoMalaysia
Landscape references
Sources checked 7 October 2026. Taxonomic and distribution treatments may change.
Species distribution sources are provided separately in the evidence panel and each species account.