Greater blue-ringed octopus

Greater blue-ringed octopus
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Order:	Octopoda
Family:	Octopodidae
Genus:	Hapalochlaena Robson, 1929
Species:	H. lunulata
Binomial name
Hapalochlaena lunulata (Quoy & Gaimard, 1832)

The greater blue-ringed octopus (Hapalochlaena lunulata) is one of four species of extremely venomous blue-ringed octopuses belonging to the family Octopodidae. This particular species of blue-ringed octopus is known as one of the most toxic marine animals in the world.