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Halitrephes maasi, commonly known as the firework jellyfish, is a species of deep-sea hydrozoan of the family Halicreatidae. Sightings have been reported at depths of 4,000 to 5,000 feet (1,200 to 1,500 m) near the Revillagigedo Archipelago off the Baja California Peninsula .
Irukandji syndrome is a condition that results from envenomation by certain box jellyfish. [4] In rare instances the sting may result in cardiac arrest and death. [5] 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 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]
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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]
Apolemia uvaria, commonly known as string jellyfish, barbed wire jellyfish, [1] and long stringy stingy thingy, is a colonial siphonophore. [2] As with all siphonophores, string jellyfish look and function much like a single organism, but each Apolemia uvaria is a colony of specialised minute organisms (), permanently attached to each other and physiologically connected to the extent that they ...
Morbakka virulenta is a species of box jellyfish that is found in waters near the islands of Japan. The species was originally described in the genus Tamoya by Kamakichi Kishinouye in 1910. However, unlike other species of that genus, this jellyfish did not have the vertical gastric phacellae (gastric filaments used for digestion) which protect ...
Overpopulation of jellyfish is a concern to humans for many reasons. [9] Jellyfish stings are painful and sometimes deadly to humans. Fishing nets can be overwhelmed with jellyfish bycatch or torn by jellyfish caught in the nets. Jellyfish can clog water inlets to power plants, causing serious problems for power production.