In polykrikoids the nematocyst is found associated with another extrusive organelle called the taeniocyst, a complex that has been described as synapomorphic for the genus " Polykrikos ".
22.
Tube anemones live and can withdraw into tubes, which are made of a fibrous material, which is made from secreted mucus and threads of nematocyst-like organelles, known as ptychocysts.
23.
Each cnidocyte contains an organelle called a cnida or cnidocyst ( e . g . nematocyst, ptychocyst or spirocyst ), which comprises a bulb-shape capsule containing a coiled hollow tubule structure attached to it.
24.
Upon contact with prey, the contents of the nematocyst are explosively discharged, firing a dart-like thread containing neurotoxins into whatever triggered the release which can paralyse the prey, especially if many hundreds of nematocysts are fired.
25.
The diversity of each species may require more new species such as : Atlantic specimens ( 2 for with or without nematocyst warts ), Indian Ocean species, several Pacific ( not including Hawaii species ) types, and an individual species for Hawaii
26.
These are long and contractile with numerous lateral tentillae or side branches bearing colloblasts, each of which consists of a coiled spiral filament, structurally similar to a nematocyst, but instead of injecting a toxin, release an adhesive substance which ensnares the prey.
27.
While cnidarians all possess nematocysts, in some species the nematocysts and toxins therein are more powerful than other species . " V . velella "'s nematocysts are relatively benign to humans, although each person may respond differently to contact with the nematocyst toxin.
28.
On the other hands, stinging cells in jellyfish are " nematocysts ", and if you were discussing animal diseases rather than human ones, the most likely candidate is " Myxobolus cerebralis ", which infects fish by piercing them with polar filaments ejected from nematocyst-like capsules .-Nunh-huh 06 : 25, 5 September 2008 ( UTC)
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