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Blue Ringed Octopus

Family: Octopodidae Genus: Hapalochlaena

Blue Ringed Octopus
Classification

Blue-lined Octopus
Classification

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Blue Ringed Octopus
Like any country, Australia has it share of creatures that can prove dangerous or fatal. Of the many dangerous creatures that can injure or fatally kill people among them include the jellyfish.

Of the number of different jellyfish, some can cause extreme pain when stung by them and are not necessarily life-threatening, however others can prove fatal. The following information and links have been provided as a starting point to make yourself aware.

Blue Ringed Octopus

The Blue Ringed Octopus:
(Species Hapalochaena maculosa, Hapalochlaena lunulata):

Hapalochlaena lunulata can grow up to 20 cm across its out-stretched tentacles.

Hapalochlaena maculosa grows up to only 10 cm and can weigh approximately up to 26 grams.

Found mainly in tidal rock pools around Australia, the Blue Ringed Octopus are easily identifiable by the distinctive blue rings, hence its name. The venom contains tetrodotoxin, that is enough poison to kill more than 20 adults within minutes. Effects of neurological problems include numbness or paraesthesia, weakness, breathing difficulties, paralysis and unable to respond, sometimes with fixed dilated pupils. The first aid used for this type of bite is the pressure-immobilisation technique, firm pressure is applied over the bitten area and the limb is immobilised. The patient should be immediately taken to the nearest medical centre.

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Scientific Classification
Kingdom: animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Octopoda
Family: Octopodidae
Genus: Hapalochlaena
Species: Hapalochlaena lunulata
Hapalochlaena maculosa

Blue-lined Octopus

The Blue-lined Octopus:
(Species Hapalochaena fasciata):

Hapalochaena fasciata is one of 3 or 4  species of Blue-ringed octopuses, most commonly found around intertidal rocky shores and coastal waters to a depth of 15 m between southern Queensland and southern New South Wales. Its mantle can grow up to 45 mm and has yellow coloration with dark blue/black streaks covering the whole body, except for the underside of the tentacles.

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Scientific Classification
Kingdom: animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Octopoda
Family: Octopodidae
Genus: Hapalochlaena
Species: Hapalochlaena fasciata

Blue Ringed Octopus Other links

Australian Institute of Marine Science
PMB 3, Townsville MC,0 TOWNSVILLE QLD 4810 Ph: 07 4753 4444 Fax: 07 4772 5852 Email
Plenty of info.
CRC Reef
6th Floor, Northtown Towers, TOWNSVILLE QLD 4810 Ph: 07 4729 8400 Fax: 07 4729 8499 Email
Follow the Coral Reefs link.
Marine-medic.com Email By Dr Peter Fenner.

 

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