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This file was derived from: Anatomy of "true" jellyfish (class Scyphozoa).jpg: This SVG file contains embedded text that can be translated into your language, using any capable SVG editor, text editor or the SVG Translate tool .
Jellyfish, also known as sea jellies, are the medusa-phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals, although a few are anchored to the seabed by stalks rather
The helmet jellyfish (Periphylla periphylla), sometimes called the merchant-cap, [1] is a luminescent, red-colored jellyfish of the deep sea, belonging to the order Coronatae of the phylum Cnidaria. It is the only species in the monotypic genus Periphylla and is one of the rare examples in Scyphozoa which life-cycle lacks a polyp stage.
Hydras have two significant structures on their body: the "head" and the "foot". When a Hydra is cut in half, each half regenerates and forms into a small Hydra; the "head" regenerates a "foot" and the "foot" regenerates a "head". If the Hydra is sliced into many segments then the middle slices form both a "head" and a "foot". [7]
Over 100 cannonball jellyfish dot the shoreline on Hilton Head Island on April 19, 2021. The jellyfish, which don’t sting, wash up each year in spring and early summer.
Cubozoa rhoplaial structures and ocelli are the most complex of Cnidarians, and resemble the image-forming eyes of squids, octopuses and vertebrates. They possess rhopalia that are structurally similar to those of the scyphozoans, but the variation of cell types and specifically ocelli are more complex within Cubozoa. [ 5 ]
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The cannonball jellyfish (Stomolophus meleagris), also known as the cabbagehead jellyfish, is a species of jellyfish in the family Stomolophidae. Its common name derives from its similarity to a cannonball in shape and size. Its dome-shaped bell can reach 25 cm (10 in) in diameter. The rim is often colored with brown pigment.