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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 ...
Neck-formation: transverse constrictions appear near the upper extremity of the animal. A strobilating polyp is called a strobila while the non-strobilating polyp is called a scyphistoma or scyphopolyp. Segmentation: the number of constriction sites [jargon] increases and migrates down the body length, transforming the body into a sequence of ...
A polyp in zoology is one of two forms found in the phylum Cnidaria, the other being the medusa. Polyps are roughly cylindrical in shape and elongated at the axis of the vase -shaped body. In solitary polyps, the aboral (opposite to oral) end is attached to the substrate by means of a disc-like holdfast called a pedal disc , while in colonies ...
A larva (/ ˈ l ɑːr v ə /; pl.: larvae / ˈ l ɑːr v iː /) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects , some arachnids , amphibians , or cnidarians typically have a larval phase of their life cycle .
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]
Scientists discovered a 520-million-year-old fossilized larva with brains and guts intact, offering unprecedented insights into early arthropod evolution.
At 20 °C, larvae undergo three molts over five days, during which they grow exponentially. [3] After growth, larvae spend another five days emptying their stomachs before pupation, where no additional body mass is gained. After 10–20 days, the larvae burrow into the soil around and beneath the dung and pupate. The time needed for the ...
A Chrysomya rufifacies larva. The genus Chrysomya contains 12 species, [3] several of which cause primary and secondary myiases of domestic animals. The larvae of one species, Chrysomya rufifacies, have very distinct thornlike processes covering its entire body, giving it the common name “hairy maggot blow fly”. [4]