https://en.wikipedia.org/wiki/Greater_blue-ringed_octopus

The greater blue-ringed octopus (Hapalochlaena lunulata) is one of four species of highly venomous blue-ringed octopuses belonging to the family Octopodidae ...

https://en.wikipedia.org/wiki/Blue-ringed_octopus

Blue-ringed octopuses, comprising the genus Hapalochlaena, are four highly venomous ... In the greater blue-ringed octopus (Hapalochlaena lunulata), the rings contain multi-layer light reflectors called iridophores. These are arranged to  ...

http://www.aquariumofpacific.org/onlinelearningcenter/species/greater_blue_ringed_octopus1

Greater blue-ringed octopuses have a soft sac-like body and eight sucker- covered arms. Their body background color at rest is usually tan to dark yellow. or ...

https://oceanconservancy.org/blog/2017/03/13/the-blue-ringed-octopus-small-but-deadly/

Mar 13, 2017 ... At first glance, the blue-ringed octopus looks perfectly innocuous. Its psychedelic coloring and pint-sized packaging make it seem more ...

https://marinebio.org/species/blue-ringed-octopuses/hapalochlaena-maculosa/

Two well-known examples are the lesser (Southern) blue-ringed octopuses, Hapalochlaena maculosa (Hoyle, 1883), and the greater blue-ringed octopuses,  ...

https://animaldiversity.org/accounts/Hapalochlaena_lunulata/

Its larger rings distinguish Hapalochochlaena lunulata, the Greater blue-ringed octopus, from the other species. Hapalochochlaena lunulata is about 20 cm at ...

https://www.youtube.com/watch?v=3Bt1LvpZ1Oo

Jul 27, 2015 ... A greater blue ringed octopus (Hapalochlaena lunulata) flashing its bright blue color ring shaped markings on its body. This tiny marine ...

http://www.pbs.org/wnet/nature/animal-guide-blue-ringed-octopus/2177/

Sep 7, 2008 ... With its fascinating coloring and delicate curling arms, the blue-ringed octopus may be a beautiful creature, but this small cephalopod is also ...

https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/blue-ringed-octopus

The blue-ringed octopus (Hapalochlaena maculosa), which is less than 5 inches in diameter, has blue ... Greater blue-ringed octopus, Hapalochlaena lunulata.

https://www.inaturalist.org/taxa/199917

The greater blue-ringed octopus (Hapalochlaena lunulata) is one of four species of highly venomous blue-ringed octopuses belonging to the family Octopodidae ...