Snake Identifier
Amethystine Python (Simalia amethistina)
Amethystine python houseguest by John Hill, via Wikimedia Commons, licensed under CC BY-SA 3.0
Pythons

Amethystine Python

Simalia amethistina

One of the longest snakes in the world, this iridescent brown python takes its name from the amethyst-like sheen its scales cast in sunlight.

Venomous?
Non-venomous
Adult length
3.5-5 m (11.5-16.4 ft), exceptionally over 8 m (26 ft)
Range
New Guinea, eastern Indonesia, northeastern Australia

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Overview

The amethystine python, also called the scrub python, is among the longest snake species on Earth, with some individuals reported to approach 8.5 m (28 ft), though most are considerably smaller. Its scales produce a shimmering purplish iridescence in bright light, giving rise to its common name.

It inhabits rainforests and monsoon woodlands of New Guinea, nearby islands, and the Cape York Peninsula of Australia, where it moves both on the ground and through trees.

How to identify it

  • Yellowish-brown to olive body with darker irregular blotches or reticulations
  • Iridescent purplish sheen visible in strong light
  • Large, elongated head distinct from neck
  • Prominent heat-sensing pits along the upper and lower lips
  • Round pupils
  • Very large body size distinguishes it from most sympatric pythons

Habitat & range

Found in New Guinea, the Moluccas, and northeastern Queensland, Australia. Inhabits tropical rainforest, monsoon forest, and adjacent woodland, often near watercourses. Both arboreal and terrestrial, sheltering in tree hollows, caves, and dense vegetation.

Behavior, diet & reproduction

Primarily nocturnal, an active hunter of mammals and birds, with large adults capable of taking wallabies and other sizeable prey. Can be more defensive than many other pythons when disturbed. Oviparous, with females guarding and coiling around their eggs.

Frequently asked questions

How long can an amethystine python grow?

Most adults reach 3.5-5 m, though exceptional individuals have been recorded well beyond 6 m.

Is it venomous?

No, it kills prey by constriction, not venom.

Where does it live?

New Guinea, nearby islands, and northeastern Australia.

Why is it called amethystine?

Its scales reflect a shimmering purple iridescence in sunlight.