blue-ringed octopus

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Related to blue-ringed octopus: stonefish, Cone snail

blue-ringed octopus

Any of at least 10 species of octopus of the genus Hapalochaena, having bright blue spots and found in the Pacific Ocean, esp. near Australia. It poisons its prey with tetrodotoxin. See: tetrodotoxin


a mollusc in the order Octopoda which has eight legs and eats crustaceans and shellfish.

blue-ringed octopus
References in periodicals archive ?
Blue-ringed octopus, cone shells, stonefish, and firefish (also known as lionfish and turkeyfish) are other poisonous creatures presented.
There's the blue-ringed octopus, the piranha, the black torpedo ray and the Portuguese man-of-war.
The Australian blue-ringed octopus will be kept in a specially-adapted, heated tank to safeguard its keepers.