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Jellyfish

General information

Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are anchored to the seabed by stalks rather than being mobile. The bell can pulsate to provide propulsion for highly efficient locomotion. The tentacles are armed with stinging cells and may be used to capture prey and defend against predators. Jellyfish have a complex life cycle; the medusa is normally the sexual phase, which produces planula larva that disperse widely and enter a sedentary polyp phase before reaching sexual maturity.

Jellyfish are found all over the world, from surface waters to the deep sea.

Classification: Biota Animalia (Kingdom) Cnidaria (Phylum)

Class Cubozoa - box jellyfish
Class Hydrozoa - Hydroid
Class Scyphozoa - true jellyfish
Class Staurozoa - stalked jellyfish

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Abietinaria

Aeginopsis

Aequorea

Agalma

Aglantha

Aglaophenia

Amphisbetia

Antennella

Apolemia

Aurelia

Bougainvillia

Candelabrum

Carukia

Carybdea

Cassiopea

Catostylus

Cephea

Chelophyes

Chironex

Chrysaora

Clytia

Copula

Corymorpha

Cotylorhiza

Crambione

Cryptolaria

Cuspidella

Cyanea

Desmonema

Ectopleura

Eudendrium

Eutima

Eutonina

Forskalia

Garveia

Gattya

Gonionemus

Gymnangium

Halecium

Haliclystus

Halitholus

Hippopodius

Hydrallmania

Hydrozoa

Kirchenpaueria

Leuckartiara

Linuche

Lobataria

Lucernaria

Lucernariopsis

Lytocarpia

Macrorhynchia

Manania

Mastigias

Melicertum

Millepora

Myrionema

Nausithoe

Nemalecium

Nemertesia

Nemopilema

Obelia

Oceania

Ocyropsis

Olindias

Pandea

Pedicellina

Pelagia

Pennaria

Periphylla

Phacellophora

Phyllorhiza

Physalia

Physophora

Plumularia

Podocoryna

Polyorchis

Porpita

Praya

Ralpharia

Rhizostoma

Rhopilema

Rhysia

Sanderia

Sarsia

Schuchertinia

Scrippsia

Sertularella

Sertularia

Solanderia

Solmissus

Sphaerocoryne

Staurocladia

Staurostoma

Stylactaria

Stylaster

Stylocoronella

Thuiaria

Thyroscyphus

Thysanostoma

Tiaropsis

Tima

Tubularia

Turritopsis

Velella

Zanclea