I love this species. Hugely under-rated in my opinion.
They're actually a very interesting species.
Real specialists, only eating slugs & snails with a specialized enlarged tooth at the back of the jaw to help crush snail shells. Great residents for the garden.
This specimen is different from the Sydney specimens, which have relatively solid bands, even as adults.
Bands tend to break up in adults, as they do in Blue-tongues. They become increasingly marginal, sometimes appearing as double bands, like this one. But I've never seen one with such distinct double banding though. Very interesting!
In what area was it found

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Looks like an adult male to me.
Like Blue-tongues, the males have bigger, broader heads proportionately and more distinct bands compared to females.
Nice find!