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The larva develops into the hydroid stage of the lifecycle, a tiny sessile polyp called a scyphistoma. The scyphistoma reproduces asexually, producing similar polyps by budding, and then either transforming into a medusa, or budding several medusae off from its upper surface via a process called strobilation. The medusae are initially ...
In those scyphozoans that have the larval planula metamorphose into a polyp, the polyp, also called a "scyphistoma," grows until it develops a stack of plate-like medusae that pinch off and swim away in a process known as strobilation. Once strobilation is complete, the polyp may die, or regenerate itself to repeat the process again later.
The similar appearances of moon jellyfish is what has made them so hard to identify. They tend to have a variety of different sizes, however, they typically range 5–38 cm (2.0–15.0 in) in diameter with an average of 18 cm (7.1 in) wide and 8 cm (3.1 in) in height. [12]
The larva then makes its way to the herbivore's muscle tissue, where it metamorphoses into an oval worm about 10 millimetres (0.39 in) long, with a scolex that is kept internally. When the definitive host eats infested raw or undercooked meat from an intermediate host, the worm's scolex pops out and attaches itself to the gut, when the adult ...
Aurelia aurita (also called the common jellyfish, moon jellyfish, moon jelly or saucer jelly) is a species of the family Ulmaridae. [1] [2] All species in the genus are very similar, and it is difficult to identify Aurelia medusae without genetic sampling; [3] most of what follows applies equally to all species of the genus.
Chiggers are tiny larvae that bite skin and cause itchy, red bumps. Here are tips and photos to help you determine if your rash is actually chigger bites. ... Here are tips and photos to help you ...
The L3 larvae develop into adults in the eye or surrounding tissues of the host, where they may live for over one year. In the definitive host, Thelazia have been found in various tissues of the orbit (or socket) of the eye, including within the eyelids, in the tear glands , tear ducts , or the so-called "third eyelid" ( nictitating membrane ...
In January 2012, a researcher discovered larvae in the test tube of a dead honey bee believed to have been affected by colony collapse disorder. The larvae had not been there the night before. The larvae were Apocephalus borealis, a parasitoid fly known to prey on bumblebees and wasps. The phorid fly lays eggs on the bee's abdomen, which hatch ...