Anthoathecata

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.

Species

ORDER

KingdomAnimalia
PhylumCnidaria
ClassHydrozoa
OrderAnthoathecata

Habitatmarine, brackish, freshwater

Observations recorded429,466

Anthoathecata is een orde van neteldieren uit de klasse van de Hydrozoa (hydroïdpoliepen). Onderorden Aplanulata Collins, Winkelman, Hadrys & Schierwater, 2005 Capitata Kühn, 1913 Filifera Kühn, 1913

via GBIF

Museum specimens

Specimen records: 103
With media: 43
Collections: YPM, CAS, SIO, AUM, CMN
Recorded in: Canada, United States, Costa Rica, Antarctica, Argentina

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Encyclopedic overview

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Contents

Systematics
Infraorders and families
References
External links

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").

Excerpted from Wikipedia’s “Anthoathecata” article, available under the CC BY-SA 4.0 licence.