Tentacle: From 1 Different Sources
Long, usually-thick, hair-like structures that contain the nematocysts needed for the capture of food. Theymay also be used to deliver such food to the mouth of the jellyfish. They may contract up to a tenth of their extended state.
Colloquial term for the single-tentacled Physalia utriculus.... bluebottle
Also known as the Irukandji, Carukia is a small, virtually invisible, box-jellyfish with a single tentacle in each corner (carybdeid). The sting may be quite mild, and is sometimes not visible on the skin. However, some 30 minutes after the sting a number of severe systemic symptoms called the Irukandji syndrome occur. The symptoms include severe low back pain, muscle cramps in all 4 limbs and the chest wall, restlessness, anxiety, and a “feeling of potential doom” (often shared by the first aider!). Severe hypertension and pulmonary oedema may occur, which may become life-threatening, although no deaths have been reported to date. The effects are believed to be due to the excess release of catecholamines.... carukia barnesi
A small box-jellyfish with a single tentacle in each corner. Common in non-tropical areas such as Western Australia and South Australia, the sting is usually mild, but occasionally may cause severe skin pain. Commonly known as the Jimble.... carybdea rastoni
Jellyfish members of the Class Cubozoa with a single tentacle in each of the four corners (except in certain rare species).... carybdeids
Commonly known as the blubber, Catostylus is a rhizostome jellyfish with no tentacles but which has 8 modified feeding `arms’ armed with nematocysts. Usually causes a very mild sting with slight skin irritation, although more severe stings have been rarely reported.... catostylus
Jellyfish members of the Class Cubozoa with more than one (and up to 15) tentacles in each corner. The jellyfish group causing more morbidity and mortality than any other in the world. At present there are 5 common species acknowledged, but current research may change this.... chirodropids
A multi-tentacled box-jellyfish present on the western coast of tropical Africa. Has the potential to cause human death, although none have been reported to date.... chirodropus gorilla
A multi-tentacled box-jellyfish present in tropical Australian waters and responsible for at least 63 deaths since first reported in 1883. Specimens have recently been discovered in Borneo, and are currently believed to be even more widespread in the Indo-Pacific.... chironex fleckeri
A multi-tentacled box-jellyfish present in the tropical eastern Indian Ocean, but particularly common around south India, Sri Lanka and eastwards towards Java.... chiropsalmus buitendijki
A multi-tentacled box-jellyfish present throughout the Indo-Pacific, and currentlybelieved to be responsible for regular deaths in many Indo-Pacific countries, amounting to many thousands of deaths over time. Looks similar to Chironex, leading to some difficulties in identification.... chiropsalmus quadrigatus
A multi-tentacled box-jellyfish present on the eastern coastline of tropical America. It has caused at least one documented death in Texas, U.S.A.... chiropsalmus quadrumanus
The specific term now used by biologists to describe members of a Phylum which are principally marine animals, radially symmetrical, and which have tentacles (i.e. jellyfish). Reproduction usually encompasses a polyp and/or medusa stage. Previously this Phylum was aggregated with others under the term coelenterates.... cnidaria
The most-common world-wide jellyfish with a flat, contracting bell with hundreds (thousands in large specimens) of fine tentacles hanging beneath. The size varies from a few centimetres bell diameter with 50cm long tentacles, to bell diameters up to 2.3 meters, with 30 meter long tentacles. Fortunately the sting, although it may cause moderately-severe skin pain, usually causes no systemic symptoms, although nausea, vomiting and dizziness have been reported.... cyanea
The colloquial name for a number of large box-jellyfish with a single tentacle in each corner. There are probably a number of species that are grouped under this name. The sting causes a burning pain to the skin and rarely, a mild Irukandji syndrome. See also: Moreton Bay carybdeid, and Fire jelly.... morbakka
The stinging cells present on the tentacles (and the bell of some species) of cnidarian. Each nematocyst consists of an coiled tube which may be bathed in venom. When the trigger on the outside of the nematocyst is touched, the tube rapidly inverts itself firing rather like a harpoon into the tissues of the prey. Venom on the outside of this tube is thus deposited in the tissues, and possibly into blood vessels during this trajectory. Finally, in some specialised nematocysts venom is then discharged through the open end of this thread tube and is deposited in the tissues o f the prey.... nematocyst
The colloquial term for the multi-tentacled hydrozoan colony Physalia physalis, recentlydescribed on the eastern coast of Australia.... pacific man-o’war
The four flattened “corners” of cubozoan (box) jellyfish from which arise the tentacles - unlike other jellyfish where the tentacles arise from many, or any, areas of the bell.... pedalium (pl. pedalia)
A siphonophore or hydrozoan colony that is usually regarded as a jellyfish by non-biological people. It has a float, rather than a bell, and the tentacle(s) hang beneath. There are two main varieties: 1. Physalia utriculus. A single-tentacled species common in the warmer waters of the world, and especially common on the eastern seaboard of Australia where it causes some 10,000-odd stings each summer. No deaths have ever been reported, and usually it causes mild-to moderate skin pain and possibly some aching pains in the draining lymph glands in the leg or armpit. 2. Physalia physalis. The multi-tentacled species found world-wide, but commonly on both side of the North Atlantic. Stings are common on the eastern coast of the United States and have now caused 3 deaths as well as manysevere systemic symptoms. Specimens may have a float length of up to 25cm with tentacles up to 30m in length. Some severe systemic symptoms resemble a modified Irukandji syndrome with painful breathing, muscle cramps, anxietyand sweating.... physalia
The colloquial term used for the multi-tentacled hydrozoan colony of Physalia physalis common in the north Atlantic Ocean.... portuguese man-o’-war
A member in the Order of jellyfish having 8 modified mouth arms armed with nematocysts, rather than the usual tentacles. Each mouth arm has numerous small mouth openings rather than the usual single manubrium.... rhizostome
n. an epithelial cell in the *glomerulus that spreads over the capillary basement membrane and has branching tentacle-like processes that interdigitate with adjacent cells. The podocytes leave gaps or thin filtration slits. The slits are covered by slit diaphragms, which are composed of a number of cell-surface proteins including *nephrin, podocalyxin, and P-cadherin, which ensure that large molecules, such as albumin and gammaglobulin, are not filtered. Podocytes are damaged in *minimal change nephropathy and a major target of injury in *HIVAN.... podocyte
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