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
References in periodicals archive ?
Chapter 5, "Dangerous Waters," is where some of the more notorious marines species are treated, including the sea wasp (Chironex fleckeri) on which Berra bestows the title "most venomous animal known." 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.
In at least one species, Australia's blue-ringed octopus, the secretion contains a neurotoxin that constitutes the deadliest venom known in nature, capable of killing an adult human in minutes.
Six species of blue-ringed octopus live in the South Pacific, where they hunt for crabs, worms, small fish, and other prey.