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The hypothesis is that the feature helps the jellyfish catch its prey of small fish. [7] Irukandji jellyfish have the ability to fire stingers from the tips of their tentacles and inject venom. [23] Irukandji jellyfish's stings are so severe they can cause fatal brain hemorrhages and on average send 50–100 people to the hospital annually. [24]
Description. The medusa form of a box jellyfish has a squarish, box-like bell, from which its name is derived. From each of the four lower corners of this hangs a short pedalium or stalk which bears one or more long, slender, hollow tentacles. The rim of the bell is folded inwards to form a shelf known as a velarium which restricts the bell's ...
The most common jellyfish involved is the Carukia barnesi, a species of Irukandji jellyfish. [4] Those stung may experience severe or even excruciating pain. The syndrome was given its name in 1952 by Hugo Flecker, after the Aboriginal Irukandji people who live in Palm Cove, north of Cairns, Queensland, Australia, where stings are common. [6]
Chironex fleckeri, commonly known as the Australian box jelly, and nicknamed the sea wasp, is a species of extremely venomous box jellyfish found in coastal waters from northern Australia and New Guinea to Indonesia, Cambodia, Malaysia and Singapore, the Philippines and Vietnam. [1] It has been described as "the most lethal jellyfish in the ...
Malo kingi or the common kingslayer is a species of Irukandji jellyfish. It was first described to science in 2007, and is one of four species in the genus Malo. [1] It has one of the world's most potent venoms, even though it is no bigger than a human thumbnail. [2] As an Irukandji, it can cause Irukandji syndrome, characterized by severe pain ...
Irukandji are rarely found outside Queensland, the Northern Territory and Western Australia.Between 1985 and 1997 from cases of Irukandji sting where location was recorded, there were 83.4% in Queensland, 9.1% in the Northern Territory, and 7.5% in Western Australia; 81.5% of cases occurred in the afternoon. [3]
Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish [2][3] found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual.
Description. Lion's mane jellyfish (Cyanea capillata) are named for their showy, trailing tentacles reminiscent of a lion 's mane. They can vary greatly in size: although capable of attaining a bell diameter of over 2 m (6 ft 7 in), those found in lower latitudes are normally smaller than their far northern counterparts, with a bell about 50 cm ...