Crown jellyfishes are the six families of true jellyfish that belong to the order Coronatae. They are distinguished from other jellyfish by the presence of a deep groove running around the umbrella, giving them the crown shape from which they take their name. Many of the species in the order inhabit deep sea environments.
Nausithoidae is a family of jellyfish.
Carybdea is a genus of venomous box jellyfish within the family Carybdeidae that currently consists of a total of 8 species. This genus of jellyfish are often found in warm waters around the world in waters such as the Mediterranean Sea, the Pacific Ocean, and off the coast of Africa. Their sting can cause a range of effects depending on the species. These invertebrates will go through both sexual and asexual reproduction as they transform from a polyp to medusa. Carybdea have a box-shaped bell with four tentacles and eye-like sensory structures. There are distinct physical markings that differentiate many species within the genus. While Carybdea use their venom to act as predators, they are also preyed on by turtles and various fish. They feed on plankton, invertebrates, fish, and some crustaceans.
Aurelia is a genus of jellyfish that are commonly called moon jellies, which are in the class Scyphozoa. There are currently 25 accepted species and many that are still not formally described.
Cyanea is a genus of jellyfish, primarily found in northern waters of the Atlantic and Pacific Oceans and southern Pacific waters of Australia and New Zealand, there are also several boreal, polar, tropical and sub-tropical species. Commonly found in and associated with rivers and fjords. The same genus name has been given to a genus of plants of the Hawaiian lobelioids, an example of a parahomonym.
Nausithoe is a genus of jellyfishes belonging to the family Nausithoidae.
Stephanoscyphistoma is a genus of crown jellyfish. Its taxonomic placement has been disputed, having been placed in Hydrozoa and Scyphozoa, and additionally having contained former members that were discovered to produce medusae belonging to the genera Atorella and Nausithoe.
Nausithoe challengeri is a species of crown jellyfish in the family Nausithoidae. Adult medusa are believed to be up to 12 millimeters in diameter, and the specimen has long and thin tentacles.
Nausithoe atlantica is a species of crown jellyfish in the family Nausithoidae. They have only been encountered ~38 times by humans since records began, and inhabit the deep sea.
Nausithoe clausi is a species of crown jellyfish in the family Nausithoidae. The species has been observed in the Western Central Pacific, and are ~0.9 centimeters wide.
Nausithoe eumedusoides is a species of crown jellyfish in the family Nausithoidae. They have been observed as inhabiting the Mediterranean.
Nausithoe globifera is a species of crown jellyfish in the family Nausithoidae. The species is ~22 millimeters in diameter, 10 millimeters of which is composed of the central disc.
Nausithoe marginata is a species of crown jellyfish in the family Nausithoidae. The species has only been observed a handful of times, and may be extinct.
Nausithoe limpida is a species of crown jellyfish in the family Nausithoidae. An adult medusae is ~6 millimeters in diameter, and the species is possibly extinct.
Nausithoe punctata is a species of crown jellyfish in the family Nausithoidae. They are widespread throughout the oceans, and are believed to be ~0.9 to 1.5 centimeters wide with a thick central disk.
Nausithoe rubra is a species of crown jellyfish in the family Nausithoidae. Adult medusa are believed to grow up to ~15 millimeters in size, and the species may be distributed worldwide. Species is confirmed to be in the East Atlantic, but may also reside in other oceans.
Nausithoe simplex is a species of crown jellyfish in the family Nausithoidae. The species is found in the Indian Ocean, and are gonochoric.
Nausithoe sorbei is a species of crown jellyfish in the family Nausithoidae. Ephyrae of the species are believed to be 4.7–5.0 millimeters in diameter.
Nausithoe striata is a species of crown jellyfish in the family Nausithoidae. This species can be found in the Davis Sea.
Nausithoe thieli is a species of crown jellyfish in the family Nausithoidae. The species can be found in the Mediterranean Sea and Western Indian Ocean.
