Reptile profile

Shingleback Lizard (Tiliqua rugosa)

Tiliqua rugosa

Database risk label: LOW
Location: Southern Australia
Database size: 30-40cm

The Shingleback Lizard is a distinctive Australian skink with a broad, armoured-looking body, a very short blunt tail and a dark blue tongue. You may also hear it called a sleepy lizard, bobtail, stumpy-tail, pinecone lizard or shingle-back. The Australian Faunal Directory accepts Tiliqua rugosa (Gray, 1825) as the scientific name and places it in the skink family Scincidae. [2]

WildGuardian’s risk label for this record is LOW. A shingleback is not a venomous animal, but it is wildlife and may bite when frightened or cornered. The best encounter is a calm, distant observation that lets the lizard choose its own way on.

At a glance

A Shingleback is a low, solidly built blue-tongue skink. Its body has conspicuously large, rough scales that can look like overlapping shingles or a pinecone. The tail is unusually short, rounded and broad; from some angles it can resemble a second head. The head is large and triangular, the limbs are relatively short, and the tongue is dark blue inside a pink mouth. Colour is variable: individuals may be dark brown, black, reddish-brown or speckled, often with a pale underside. [1] [3]

The tail, coarse scales and heavy body are more useful starting points than colour alone. The animal’s blue tongue can be seen only when it opens its mouth, which is a defensive display rather than an invitation to approach. Australian Museum notes that a threatened shingleback may gape, show its tongue, hiss and flatten its body; it may bite if picked up. [1]

Identification limits

Use this page to recognise a likely shingleback, not to make a close-range identification. Australia has several blue-tongue skinks, and names such as “blue-tongue” and “bobtail” can mean different animals in different places. A Shingleback is specifically Tiliqua rugosa, not every lizard with a blue tongue. The short, rounded tail and coarse, shingle-like scales are key features, but an animal should be viewed without trying to confirm details by touching or moving it. [1] [3]

Common names also vary across the continent. The Australian Faunal Directory records Bobtail, Boggi, Pinecone Lizard, Shingle-back, Sleepy Lizard and Stumpy-tail for this one species. [2] In Western Australia, “bobtail” is particularly familiar; in South Australia, “sleepy lizard” is also widely used. Names can be locally useful, but Tiliqua rugosa is the clearest name for accurate records and enquiries.

Australian range and habitat

This is an Australian endemic. The Australian Faunal Directory lists records from the Australian Capital Territory, New South Wales, Queensland, South Australia, Victoria and Western Australia. [2] Its distribution is not a claim that it occurs in every part of each jurisdiction. In New South Wales, for example, the Australian Museum describes it as widespread from the western slopes of the Great Dividing Range and says it does not occur naturally in Sydney. [1]

Across its range, Shinglebacks are associated chiefly with dry and semi-arid country. Australian Museum describes them as common on low-rainfall plains west of the Great Dividing Range, throughout semi-arid inland Australia and in coastal parts of Western Australia and South Australia. [1] Museums Victoria summarises the Victorian context as mallee and dry forest, while the national directory includes ecological descriptors such as desert, open woodland, open forest, heath, scrub and tussock grassland. [2] [3]

At a local scale, look for open country with ground cover. The species uses tussocky grass and leaf litter, and shelters at night in leaf litter or beneath large ground objects such as rocks and logs. [1] That combination explains why a shingleback may be seen in a paddock edge, a dry bushland track or a suburban setting near cover, while still being hard to spot once it settles.

Ecology and behaviour

Shinglebacks are terrestrial, diurnal omnivores. They warm themselves by basking in sunny areas before foraging, because like other lizards they rely on environmental warmth rather than generating their own body heat. In cold weather they stay inactive deep in shelter, although they may emerge to bask on sunny days. [1] The Australian Faunal Directory also classifies the species as diurnal, terrestrial, omnivorous and viviparous, meaning it gives birth to live young. [2]

Their food is mixed but plant material is important. Australian Museum reports that Shinglebacks eat a broad variety of plant and animal foods, with more plant food than other blue-tongues; their strong jaws can crush snail shells and beetles. [1] Museums Victoria likewise describes the species as omnivorous, mainly eating flowers and vegetation, alongside insects and other invertebrates. [3]

The animal’s slow, deliberate movement is not the whole story of its social life. Individuals are usually alone for much of the year, but they form long-lasting pairs around the breeding season. The South Australian government’s Murraylands and Riverland landscape board says that, in spring, shinglebacks come out of winter inactivity and reunite with a monogamous mate; the male follows the female for roughly six weeks. [4] A Flinders University review of 35 years of research found that some pairs re-formed each spring for as long as 27 years. [5]

Females give birth rather than lay eggs. Australian Museum reports births three to five months after mating, between December and April, with the young soon becoming independent. [1] Timing can vary with locality and season, so this is a broad guide rather than a prediction for every sighting.

Safer encounters

A stationary or slow-moving lizard is not necessarily in trouble. Shinglebacks often bask, forage methodically or pause near cover. Give the animal a clear buffer and observe quietly from where you are. Do not crowd its path, and keep children and pets from making contact. This reduces the chance of provoking the gape, hiss and bite response documented by Australian Museum. [1]

Roads and tracks deserve extra attention in warm weather. Shinglebacks may be visible beside or on roads while basking, and their slow movement makes them vulnerable to traffic. Perth Zoo identifies roads as a significant source of mortality for the species, and the South Australian landscape board advises drivers to slow down for lizards crossing a road when it is safe to do so. [4] [6] Always prioritise normal road safety: do not make an unsafe manoeuvre for wildlife.

Keep the distinction between watching and intervening clear. This guide does not provide capture, handling, feeding, relocation or wildlife-treatment advice. If a shingleback appears injured or trapped, seek assistance from the relevant local wildlife authority or licensed wildlife rescue service rather than attempting to manage the animal yourself.

If a person is bitten

A Shingleback bite can hurt, break skin and bruise, but Australian Museum states that the species has no venom and no long-term ill effect from its bite. It advises cleaning the bite site with a mild disinfectant, as for any animal bite. [1]

Treat broken skin as a health matter, even though this is not an envenomation emergency. Healthdirect Australia says any animal bite that breaks skin should be assessed by a doctor as soon as possible. It directs people to urgent care for a large or deep wound, a bite to the face or head, or bleeding that cannot be stopped. [7]

Frequently asked questions

Is a Shingleback Lizard the same as a blue-tongue?

It is a type of blue-tongue skink, but “blue-tongue” is a broad common description rather than a unique identification. The Shingleback Lizard in this profile is Tiliqua rugosa, recognised by its compact body, large coarse scales and short, rounded tail. [1] [2]

Where in Australia might I see one?

The species is recorded in the ACT, New South Wales, Queensland, South Australia, Victoria and Western Australia, especially across dry and semi-arid habitats. It is not naturally found in Sydney. [1] [2]

Why is it called a two-headed lizard?

Its short, broad tail can look head-like from a distance. This resemblance is one reason “two-headed lizard” is among its common names, but it has only one head. [1] [2]

Are Shingleback Lizards dangerous to people?

They are not venomous. They can, however, bite defensively if they feel threatened, and an adult bite can be painful and break skin. Give the lizard space and follow the bite guidance above if skin is broken. [1] [7]

References

Last reviewed: 24 October 2026. This is general information, not a substitute for medical care.