The Scyphozoa are an exclusively marine class of the phylum Cnidaria, referred to as the true jellyfish (or “true jellies”). It may include the extinct fossil group the Conulariida, whose ...

Jellyfish include any planktonic marine member of the class Scyphozoa (phylum Cnidaria), which is a group of invertebrate animals composed of about 200 described species, or of the class Cubozoa ...

Cnidaria (/naɪˈdɛəriə/) is a phylum containing over 10,000 species of animals found exclusively in aquatic (freshwater and marine) environments: they are predominantly marine species. Their ...

#Introduction to Cnidarians In today’s lab we will be observing members of the phylum Cnidaria. You will become familiar with the external and internal anatomy of 3 representative classes: Hydrozoa, ...

Figure 1. Phylogenetic relationships of the various cnidarian classes and subclasses. The class Myxozoa has been omitted in this figure, because of its uncertain position. Names highlighted in red ...

First aid treatment for most fire coral, hydroid and jellyfish stings is the same. Rinse the affected area with seawater (do not use fresh water as this will cause the nematocyst to ‘fire ...

The phylum Cnidaria consists of six classes: Hydrozoa (Hydra and colonial polyps, such as Clytia), Scyphozoa (true jellyfishes), Cubozoa (box jellyfishes), Staurozoa (stalked jellyfishes), Anthozoa ...