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The Scyphozoa are an exclusively marine class of the phylum Cnidaria, [2] referred to as the true jellyfish (or "true jellies"). The class name Scyphozoa comes from the Greek word skyphos ( σκύφος ), denoting a kind of drinking cup and alluding to the cup shape of the organism.
Other species of jellyfish are among the most common and important jellyfish predators. Sea anemones may eat jellyfish that drift into their range. Other predators include tunas, sharks, swordfish, sea turtles and penguins. [84] [85] Jellyfish washed up on the beach are consumed by foxes, other terrestrial mammals and birds. [86]
Pacific sea nettles, Chrysaora fuscescens. Cnidaria (/ n ɪ ˈ d ɛər i ə, n aɪ-/ nih-DAIR-ee-ə, NY-) [4] is a phylum under kingdom Animalia containing over 11,000 species [5] of aquatic invertebrates found both in fresh water and marine environments (predominantly the latter), including jellyfish, hydroids, sea anemones, corals and some of the smallest marine parasites.
[2] [3] [4] The jellyfish are typically dried and/or salted. [1] In China, which was the first country documented to use jellyfish as food, this has been practiced at least since the year 300 CE , [ 1 ] but they are also commonly consumed in Japan (the largest consumer of jellyfish today), Korea and southeast Asia.
Bazinga rieki could not be placed in any known family or suborder of rhizostome jellyfish, so a new family Bazingidae was erected; it represents a new suborder of Rhizostomeae, called Ptychophorae. [1] Bazinga rieki has a thick round translucent and colourless body, the aboral (upper) surface of which is covered in tiny warts with yellow centres.
Staurozoa is a class of Medusozoa (or jellyfish).It has one extant order: Stauromedusae (stalked jellyfishes) with a total of 50 known species. A fossil group called Conulariida has been proposed as a second order, [3] although this is highly speculative.
During the day the medusae will attach themselves with the adhesive patches on their tentacles to various surfaces, especially seagrass, earning the species its common name clinging jellyfish. [ 2 ] [ 3 ] Gonionemus vertens may catch prey when attached to surfaces during the day, but they mostly feed at night in open water, [ 3 ] [ 4 ] eating ...
The hydroid colony's polyps can range from bright blue turquoise to yellow. The polyps resemble the tentacles of jellyfish. [10] [11] [full citation needed] Each strand has numerous branchlets, each of the knobs of stinging cells called nematocysts terminates at the distal end. The blue button has a single mouth located beneath the float, which ...