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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With your support, most marine life and their ocean habitats can be protected, if not restored to their former natural levels of biodiversity. MarineBio – Haoalochlaena octopuses: Hapalocjlaena of Unusual Size.

At one week of age, the blue ringed octopus will begin to eat crab pieces. In general this species is nonaggressive and will only bite if picked up or stepped on. From arm to arm, most of these octopuses are yapalochlaena larger than 20 centimeters. Articles with ‘species’ microformats All articles with unsourced statements Articles with unsourced statements from May Once hatched, the H. The octopus will either entice its prey into its vicinity and inject a poison into the water that will paralyze it or will inject the poison into its prey directly.

You are using a version of browser that may not display all the features of this website. There are also fine, unevenly-sized tubercles covering hapalochlsena head and mantle.

The most outstanding characteristic of this species is the iridescent blue rings in the eye spots. Harcourt Brace Jovanovich Press.

Description & Behavior

Mantle In molluscs, a fold of skin that encloses a space known as the mantle cavity, which contains the gills. They are not aggressive and tend maculosz avoid confrontation by flattening their body and blending into their surroundings. By using this site, you agree to the Terms of Use and Privacy Policy.


On their dorsal mantle, 10 maculae form a pattern of brown chevrons. Sign up to our newsletter Get the latest wild news direct to your inbox. Like other blue-ringed octopuses, the southern blue-ringed octopus is often sighted in coastal waters at depths of up to 50 metres. Accessed December 31, at https: Which species are on the road to recovery?

Anachoresis is living in crevices and holes. Record a sighting Submit a photo Receive alerts when new records are added.

Southern blue-ringed octopus

If you have images for this taxon that you would like to share with Atlas of Living Australia, please upload using the upload tools. Australian Marine Conservation Society: Explicit use of et al.

Pacific Mzculosa body of water between the southern ocean above 60 degrees south latitudeAustralia, Asia, and the western hemisphere.

This species information was authored as part of the Arkive and Universities Scheme.

NP1 – Hapalochlaena maculosa (Blue-ringed octopus)

The male will then use the hectocotylus, a modified arm consisting of a groove between the suckers and ending in a spoonlike tip, to deposit the sperm in the female’s oviduct, which is located under the mantle. 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.

Two of these are Hapalochlaena lunulata and Hapalochlaena fasciata. It pins down and injects it through its beak. This stage of the life cycle, the young will float to the top and join the plankton hapalochoaena about a month.

The habitats these species 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 3.


An annotated and illustrated catalogue of species of interest to fisheries. Blue-ringed octopuses, such as H. Name references found in Trove – NLA.

There are at least 10 species of tiny blue-ringed octopuses, which, madulosa for their size, are the most deadly of all cephalopods. It may NOT be used within Apps. Hapalohclaena up to our newsletter Get the latest wild news direct to your inbox. Size Typical arm span: It will also be important to educate the public, not only on the dangers posed by these species, but also on amculosa important role they play in the marine environment. In addition, its venom could have potential medical uses 3.

Southern blue-ringed octopus videos, photos and facts – Hapalochlaena maculosa | Arkive

Though the blue ringed octopus carries a toxin which can kill humans, there has never yet been a report of an octopus attacking a human. Wood Economic Importance for Humans: Help us share the wonders of the natural world. Hapalochlaena maculosa in Blairgowrie, Victoria.

Octopusesalong with squid and cuttlefishes have a short lifespan of about 2 years. Smaller patches dot their web and base of their arms.

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

This species lacks an ink sac and has therefore become a common addition to the marine aquarium. Select the link destinations: Mwculosa Importance for Humans: They are normally a docile species, but they are highly venomous possessing venom capable of killing humans.

These rings are reported to “glow” when an individual is aggravated.