Hapalochlaena fasciata
| Blue-lined octopus | |
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| Hapalochlaena fasciata | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Octopoda |
| Family: | Octopodidae |
| Subfamily: | Octopodinae |
| Genus: | Hapalochlaena |
| Species: | H. fasciata |
| Binomial name | |
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Hapalochlaena fasciata (Hoyle, 1886) |
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The blue-lined octopus (Hapalochlaena fasciata) is one of three (or perhaps four) species of venomous Blue-ringed octopuses. It is most commonly found around intertidal rocky shores and coastal waters to a depth of 15 metres (49 ft) between southern Queensland and southern New South Wales. It is relatively small, with a mantle up to 45 millimetres (1.8 in) in length. In its relaxed state, it is a mottled yellow-brown with dark blue or black streaks covering the whole body apart from the underside of its arms, but its vibrant blue patches appear as a warning when they feel threatened. Along with its other closely related species, the Blue-lined octopus is regarded as one of the dangerous animals in the sea, and its venom can be fatal to humans. Blue-lined octopus is one of the most common of several species of blue-ringed octopuses found in Sydney. Their size range from 4.5 cm, of an adult, to 5.5 cm.
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Wikipedia