Snake Identifier
Mulga Snake (Pseudechis australis)
Deadly Snake-01+ (1914760565) by Sheba_Also 43,000 photos, via Wikimedia Commons, licensed under CC BY-SA 2.0
Cobras & elapids

Mulga Snake

Pseudechis australis

One of Australia's largest snakes, the Mulga Snake is a robust, widespread elapid of arid and semi-arid country.

Adult length
1.5-2.5 m (5-8 ft)
Range
Most of mainland Australia except the far southeast and southwest

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Overview

The Mulga Snake, also widely known as the king brown snake despite not being a true brown snake, is among the largest and most widely distributed snakes in Australia, occurring across nearly all arid and semi-arid regions of the mainland.

How to identify it

  • Large, heavy-bodied snake with a broad head
  • Coloration typically coppery-brown to olive, with each scale often edged in a darker color giving a reticulated appearance
  • Smooth scales
  • Round pupils, relatively small eyes for its head size
  • Distinguished from true brown snakes by bulkier build and different scale pattern

Habitat & range

Occupies a wide range of habitats including arid scrubland, woodland, grassland, and rocky areas across most of mainland Australia, avoiding only the far southeast and southwest.

Behavior, diet & reproduction

Primarily nocturnal or crepuscular, though also active by day in cooler weather. Feeds on a broad diet including frogs, lizards, birds, mammals, and even other snakes. When alarmed, it flattens its neck and hisses loudly. Reproduces by egg-laying.

Frequently asked questions

Is the Mulga Snake a true brown snake?

No, despite the common name 'king brown,' it belongs to a different genus, Pseudechis, not the true brown snakes (Pseudonaja).

How big does it get?

It is one of the largest snakes in Australia, commonly reaching 2 meters or more.

What does it eat?

A wide variety of prey including frogs, lizards, birds, mammals, and other snakes.