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单词 Anthomedusae
释义

Anthomedusae

英语百科

Anthomedusae

It is not clear whether Stylaster californicus belongs in the Filifera.Upper left: blue top snail (Calliostoma ligatum).
Hydractinia epiconcha belongs to the Margelina in the suborder Filifera.
The well-known freshwater polyp Hydra viridissima, formerly placed in the Capitata, does actually belong to the Aplanulata.

Anthomedusae or Anthomedusa, the athecate hydroids, are an order of the Hydrozoa, a class of marine invertebrates belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnoblastea and (with or without an emended ending -ae) Anthoathecata, Athecata, Hydromedusa, and Stylasterina. There are about 1,200 species worldwide.

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