Greater blue-ringed octopus - Hapalochlaena lunulata
Kareko Batu, Lembeh.
Our first encounter with this beautiful but super-deadly tiny octopus!
At first it was not even displaying the blue rings so it is kind of scary to think we could have brushed him by mistake
The greater blue-ringed octopus is one of four species of venomous blue-ringed octopuses belonging to the octopodidae family.