Anthoathecata
Sign in to saveAnthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known and heavily discussed group. It has also been called Gymnoblastea and (with or without an emended ending -ae), Anthomedusa, Athecata, Hydromedusa, and Stylasterina. There are about 1,200 species worldwide.
Species
ORDER
- KingdomAnimalia
- PhylumCnidaria
- ClassHydrozoa
- OrderAnthoathecata
Habitatmarine, brackish, freshwater
via GBIF
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Hydroidolina
- Image
- Haeckel Anthomedusae.jpg
Show 3 more facts
- P105
- order
- P1420
- Anthomedusae
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Article
4 sectionsContents
- Systematics
- Infraorders and families
- References
- External links
Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known and heavily discussed group. It has also been called Gymnoblastea and (with or without an emended ending -ae), Anthomedusa, Athecata, Hydromedusa, and Stylasterina. There are about 1,200 species worldwide.
These hydrozoans always have a polyp stage. Their hydranths grow either solitary or in colonies. There is no firm perisarc around the polyp body. The medusae, or jellyfish, are solitary animals, with tentacles arising from the bell margin, lacking statocysts but possessing radial canals. Their gonads are on the manubrium ("handle").