Cnidaria

[ nahy-dair-ee-uh ]

Phonetic (Standard)IPA

noun

, Zoology.

an alternative name for the invertebrate phylum Coelenterata, giving emphasis to the stinging structures as characteristic of the phylum.

From New Latin; cnida, -aria

On the other hand, the cnidaria develop into higher radial (star-shaped) persons, and the platodes into lower bilateral persons.

Self-cleavage is also found among the higher multicellular organisms—namely, the cnidaria (polyps, medus).

Flagellated epithelium is especially found in the cnidaria and platodes; ciliated epithelium mostly in the vermalia and mollusca.

In this way is formed a ring of tentacles, the most characteristic organs of the Cnidaria.

Real parasites are not numerous among the sponges and cnidaria.

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