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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.
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 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.
The taxonomy of Cyanea species has seen increased scrutiny in recent years. [1] [5] [2] Early zoologists suggested that all species within the genus should be treated as one.[6] [7] Recent molecular and integrative taxonomic studies have refuted this assertion [1] [8] [9] as the scyphozoan community has restored many of the previous species. [10]
Cassiopea andromeda (Upside-Down Jellyfish) Bud formation and metamorphosis inCassiopea andromeda (Cnidaria: Scyphozoa): A developmental and ultrastructural study; WoRMS - World Register of Marine Species - Cassiopea andromeda (Forskål, 1775) ADW: Cassiopeia andromeda: Information; Photos of Cassiopea andromeda on Sealife Collection