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Mastigiidae is a family of true jellyfish. [1] The family is native to the Indo-Pacific , but a species of Mastigias has been introduced to the West Atlantic, and Phyllorhiza punctata has been introduced to the West Atlantic and Mediterranean Sea .
The Pelagiidae are a family of jellyfish. Members of the family Pelagiidae have no ring canal, and the marginal tentacles arise from umbrella margin. Genera
The Ulmaridae are a family of jellyfish, which includes the famous moon jellies, and other jellyfish with unique characteristics like Tiburonia granrojo. Genera
The rarely encountered deep-sea jellyfish Stygiomedusa gigantea is another candidate for "largest jellyfish", with its thick, massive bell up to 100 cm (3 ft 3 in) wide, and four thick, "strap-like" oral arms extending up to 6 m (19 + 1 ⁄ 2 ft) in length, very different from the typical fine, threadlike tentacles that rim the umbrella of more ...
Monorhaphis is a monotypic genus of siliceous deep sea Hexactinellid sponges.The single species is the type species Monorhaphis chuni, a sponge known for creating a single giant basal spicule (G.B.S.) to anchor the sponge in the sediments.
Rhopilema verrilli, the mushroom cap jellyfish, is a species of jellyfish in the family Rhizostomatidae. They are cnidarian invertebrates distinguished by their mushroom-shaped medusae. The species does not have any tentacles; however, they still have stinging cells, called nematocysts , within their bells, which can produce mild stings to humans.
Poralia is a genus of jellyfish in the family Ulmaridae. It is a monotypic genus containing a single species, Poralia rufescens. [1] This jellyfish is pelagic, and is found in deep water in most of the world's oceans. In 2021, a NOAA expedition discovered a possible additional Poralia species in the Atlantic Ocean. [2]
Cubozoa is a group commonly known as box jellyfish, that occur in tropical and warm temperate seas. They have cube-shaped, transparent medusae and are heavily-armed with venomous nematocysts. Cubozoans have planula larvae, which settle and develop into sessile polyps, which subsequently metamorphose into sexual medusae, [ 11 ] the oral end of ...