Deadly blue-ringed octopus spotted in very unlikely location

A deadly blue-ringed has been spotted in a densely-populated section of the Parramatta River in Sydney's inner west for the first time since the 1960s.

The golf ball-sized creature was found at Callan Park, about 14km inland from Bondi Beach, during an ecological survey commissioned by Inner West Council.

It was photographed in February and its discovery was announced on social media this week.

Inner West Council is keeping the precise location of the distinctive-looking mollusc secret so that members of the public do not try to interfere with it. 

The animal is one of four species of the extremely venomous blue-ringed octopus and is known as a blue-lined octopus due to its non-circular markings.

Blue-lined octopuses (Hapalochlaena fasciata) are found i...
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