Pseudechis guttatus (the blue-bellied black snake or spotted black snake) is a species of black snake that is only found in the inland areas of south-eastern Queensland and northern New South Wales. On average, their measurement is 1.25 m, but some snakes have been found to measure as long as 2 m. Their diet consists of frogs, lizards, and small mammals, therefore making them carnivorous. They, like most other snakes, are oviparous, laying 7–12 eggs during their breeding season. It is unknown what their average venom ejection is. When mice are bitten, the snake's venom is the most toxic of all the black snakes. They are naturally very shy, and will not bite unless provoked (by being stepped on by a boot, prodded by a stick, etc.). If a human is bitten, they may suffer severe pain, nausea,