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Tropidolaemus subannulatus
Basic stats
Venom
Venomous (dangerous — treat any bite as a medical emergency)
Diet
Small vertebrates
Habitat
Low branches and leaves beside forest trails and streams
Range
Endemic to Borneo
Litter size
Live-bearing, 10–20 young (typical for keeled green pit vipers)
Gestation period
About 5–6 months (typical for keeled green pit vipers)
Size
Medium pit viper (up to 1m)
Weight
~200–500g
A bright green pit viper with keeled (ridged) scales, one of the more frequently encountered venomous snakes on Sabah night drives, typically found coiled on low branches and leaves beside forest trails and streams.
An ambush predator of small vertebrates, relying on heat-sensing pits to detect prey in darkness. Venomous and medically significant — a common and exciting sighting on night walks, but should always be observed from a safe distance rather than approached closely.
