Mantle length is cm. This species is extremely venomous, tetrodotoxin venom produced in the salivary glands has potential to cause human deaths (Ref. Learn more about the Southern blue-ringed octopus – with amazing Southern blue-ringed octopus videos, photos and facts on Arkive. Southern blue-ringed octopus, head detail – View amazing Southern blue-ringed octopus photos – Hapalochlaena maculosa – on Arkive.

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It pins down and injects it through its beak. Also found under rocks in sandy or muddy stretches of bottom macjlosa alga is plentiful. The venoms are secreted into the blue-ringed octopus’s saliva, but the mechanism for poisoning its victim is not well understood.

Hanlon and Messenger Other Physical Features ectothermic bilateral symmetry Average mass 26 g 0. Terms of Use – The displayed portlet may be used as a link from your website to Arkive’s online content for private, scientific, conservation or educational purposes only.

We sincerely thank our thousands of members, donors hapalochlaenaa sponsors, who have decided to get involved and support the MarineBio Conservation Society. Guide to Squid, Cuttlefish and Octopuses of Australasia. It may NOT be used within Apps.

Pacific Ocean body of water between the southern ocean above 60 degrees south latitudeAustralia, Asia, and the western hemisphere. If you are able to help please contact: The Journal of Experimental Biology. Connect with us Help us improve the site by taking hapalocblaena survey. However, members of its genus are sometimes collected for the aquarium trade, despite the risk posed by their venomous bite. This hpaalochlaena it for feeding. Please donate to Arkive Help us share the wonders of the natural world.


When the octopus is agitated, the brown patches darken dramatically, and iridescent blue rings or clumps of rings appear and pulsate within the maculae.

In general this species is nonaggressive and will only bite if picked up or stepped on. Their blue rings are usually not visible in animals at rest. Toxicologists strongly disagree with this practice because of the potential danger to people who are unaware of the potentially fatal venom. Rodents of Unusual Size. Select the link destinations: The dorsal upper surface of their mantle usually has a rough appearance covered by numerous irregularly arranged wrinkles.

The ADW Team gratefully acknowledges their support. Sei whale Balaenoptera borealis. The southern blue-ringed octopus also differs from other marine invertebrates in that there is no planktonic haoalochlaena.

Members of this genus are commonly found in shallow pools, under rocks and corals, or among clumps of sea squirts, particularly after storms.

Marine Biology18 2: Unreviewed – Annotation score: In other projects Wikimedia Commons Wikispecies.

Like other cephalopodsthe southern blue-ringed octopus is considered to be one of the most intelligent of all invertebrates 2 8. Anachoresis is living in crevices and holes. Their prey swim into the venom and become paralyzed, allowing for an attack.

Part 2 – Other marine envenomations. Lindsey Paretti – Blood Island. This work is licensed under a Creative Commons Attribution 3.

Classification Kingdom Animalia animals Animalia: Help us share the wonders of the natural world. Marine Drugs8: Southern blue-ringed octopus habitat Like other blue-ringed octopuses, the southern blue-ringed octopus is often sighted in coastal waters at depths of up to 50 metres. We greatly appreciate all feedback! Another tactic it uses to hunt is releasing its venom as a mist into a location where its prey is commonly hpaalochlaena Oceana.

Southern blue-ringed octopus – Wikipedia

Burrowing is where an octopus establishes a den or refuge for itself by excavation of sand, mud, gravel, and coral rubble. Most commonly found in rocky, shallow pools of water or in shallow corals. The life cycle of the southern blue-ringed octopus, from mating through to the eggs hatching and the young reaching maturity, lasts for approximately seven months.


The female also does not eat during this time period. Browse the list of datasets and find organisations you can join if you are interested in participating in a survey for species like Hapalochlaena maculosa Hoyle, Just when you thought it safe Southern blue-ringed octopus status The southern blue-ringed octopus has yet to be classified by the IUCN.

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Description & Behavior

Charts showing breakdown of occurrence records 0 records. This poison is fatal and more potent than any poison found in land animals. What makes this octopus famous is its venom. The habitats these maculoea occupy are also being degraded and fragmented by human activities, and blue-ringed octopuses may potentially be affected by overfishing and by human disturbance in the form of divers, tourists and beach-goers maculosq.

It is also possible females use some form of refined sense of smell halalochlaena single out attractive mates. Hanlon and Messenger This stage of the life cycle, the young will float to the top and join the plankton for about a month. View list of all occurrence records for this taxon 0 records View map of all occurrence records for this taxon 0 records.