Colubridae · Global species account
Boiga irregularis
Brown catsnake
One account across its documented countries and islands.
One species · Across borders
Global distribution
Explore the recorded countries and islands. Select a highlighted area to see its distribution evidence.
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Click a highlighted country to zoom in and explore its records.
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
Across borders
6 recorded countries & territories
Select a highlighted area to see its status, island records and sources. Each country and island links to the same shared species collection.
Use “Worldwide records” to include distant introduced and uncertain records in the map view.
Indonesian locality notes and qualifications
- Sulawesi
- Sulawesi, Togian
- Maluku
- Halmahera
Indonesian Sulawesi/Togian and Halmahera explicitly listed under flavescens; PNG alone is not used to infer Papua.
From the literature
Natural history
The depth of biological coverage varies by species. Missing traits are research gaps, not evidence that a behaviour or habitat is absent.
Sources
Sources checked 7 October 2026. Taxonomic and distribution treatments may change.