Medusozoa
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Medusozoa is a clade in the phylum Cnidaria, and is often considered a subphylum. It includes the classes Hydrozoa, Scyphozoa, Staurozoa and Cubozoa. Medusozoans are distinguished by having a medusa s
Sea nettles
Polypodium hydriforme, parasites of obscure affinity
Pelagia noctiluca, a scyphozoan
An unidentified cubozoan
Cnidaria
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Cnidaria is a phylum of animals containing over 11,000 species of aquatic invertebrates found both in freshwater and marine environments, including jellyfish, hydroids, sea anemones, corals and some o
Medusozoa
…Medusozoa is a clade in the phylum Cnidaria, and is often considered a subphylum. It includes the classes Hydrozoa, Scyphozoa, Staurozoa and Cubozoa. Medusozoans are distinguished by having a…
Oral end of actinodiscus polyp
Cerianthus filiformis (Ceriantharia)
Sea anemones (Actiniaria, part of Hexacorallia)