Familiae: Bougainvilliidae - Clathrozoellidae - Halocordylidae - Hydrocorynidae - Myriothelidae - Polyorchidae - Russelliidae
Anthomedusae Haeckel, 1879
* Stylasterina Hickson and England, 1905
* Peña Cantero, A.L.; Vervoort, W.; Watson, E.J. 2003: On Clathrozoellidae (Cnidaria, Hydrozoa, Anthoathecatae), a new family of rare deep-water leptolids, with the description of three new species. Zoologische Verhandelingen, 345: 281-296.
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 spectactular group - it has also been called Gymnoblastea, or, with or without an emended ending "-ae", Anthoathecata, Athecata, Hydromedusa or 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").
Except in Eudendriidae and Laingiidae, the cnidome has desmonemes.
It is not clear whether Stylaster californicus belongs in the Filifera.
Their close relationship to the Leptomedusae has been long known, but it was formerly believed that these two were also close to the Limnomedusae. Actually, their closest relative are the highly advanced Siphonophorae, whereas the Limnomedusae are simply a rather primitive group that is not very closely related to these three Leptolinae but might actually belong to the Trachylinae subclass. The family Clathrozoellidae is placed with the Filifera in some treatments; in others it is placed in the Leptomedusae and sometimes even synonymized with their family Clathrozoidae. The supposed athecate family Monobrachiidae apparently belongs in the Olindiasidae of the Limnomedusae.
The Porpitidae are highly aberrant group, and were at one time considered an own order "Chondrophora". But actually they are derived from Zancleida. Halammohydridae and Otohydridae, sometimes placed here, actually appear to be trachyline hydrozoans of the order Actinulidae. Similarly, the Laingiidae, also long considered a distinct order Laingiomedusae, might belong in the Pandeida.
Infraorders and families
Basal and incertae sedis Anthomedusae
Family Halimedusidae (Capitata: Moerisiida?)
Family Laingiidae (Filifera: Pandeida? Tentatively placed here)
Family Myriothelidae (Capitata: Tubulariida? Including Candelabriidae)
Family Rhysiidae (Filifera: Margelina?)
Family Russelliidae (Filifera: Pandeida?)
Family Stylasteridae (Filifera: Margelina?)
Basal or incertae sedis
Genus Ctenaria (Zancleida: Zancleidae?)
Genus Oonautes (Zancleida: Zancleidae?)
Family Corymorphidae (including Paragotoeidae)
Family Corynidae (including Dicyclocorynidae)
Family Porpitidae (including Velellidae)
Basal or incertae sedis
Genus Kinetocodium (Margelina: Hydractiniidae?)
Genus Millardiana (Margelina: Bougainvilliidae?)
Family Bythotiaridae (including Calycopsidae; Pandeida?)
Family Oceaniidae (including Clavidae; Margelina?)
Family Tubiclavoididae (Pandeida?)
Family Bougainvilliidae (including Clavopsellidae)
Family Eudendriidae (including Urashimeidae)
Family Pandeidae (including Hydrichthyidae)
^ a b c Schuchert (2008)
^ Schuchert (2008), MarineSpecies.org (2008)
MarineSpecies.org (2008): Anthomedusae. Retrieved 2008-JUL-08.
Schuchert, Peter (2008): The Hydrozoa Directory - Order Anthomedusae Haeckel, 1879. Retrieved 2008-JUL-08.
Buecher, E., Goy, J. & Gibbons, M.J. 2005. Hydromedusae of the Agulhas Current. African Invertebrates 46: 27-69.