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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. [3] Scyphozoans have existed from the earliest Cambrian to the ...
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]
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.
The genus name, Atolla, is derived from the word atoll. [2] The specific epithet was given in honor of Jeff Reynolds, a volunteer at the Monterey Bay Aquarium who guarded a beached whale overnight at Del Monte beach.
Cyanea annaskala is in the scyphozoan class of the phylum Cnidaria. The scyphozoans are the true jellies. It is within the order Semaeostomeae. The Semaeostomeae are the flag mouth jellies. It is within the family Cyaneidae, which contain the better known species of the lion's mane jellyfish. [1]
Atolla wyvillei, also known as the Atolla jellyfish, Coronate medusa, and deep-sea jellyfish, is a species of deep-sea crown jellyfish (Scyphozoa: Coronatae). [2] It lives in oceans around the world. [3] Like many species of mid-water animals, it is deep red in color.
The genus name is derived from the Latin name Aurelia, which in turn is derived from aureus, meaning "golden".The specific epithet is derived from the Turkish word ayla, meaning "halo of light around the moon"; additionally, it was given in honor of the daughter of Allen G. Collins, co-author of the species' original study, who shares the same name.
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.