Hydrozoa taxon details

Checked: verified by a taxonomic editorHydractiniidae L. Aggasiz, 1862 
AphiaID: 1601

Classification: Biota > Checked: verified by a taxonomic editorAnimalia > Checked: verified by a taxonomic editorCnidaria > Checked: verified by a taxonomic editorHydrozoa > Checked: verified by a taxonomic editorHydroidolina > Checked: verified by a taxonomic editorAnthoathecata > Checked: verified by a taxonomic editorFilifera
Status accepted
Rank Family
Typetaxon Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Parent Checked: verified by a taxonomic editorFilifera
Synonymised
names
  Checked: verified by a taxonomic editorClavidae McCrady, 1859 (synonym)
Sources 
redescription Schuchert, P. 2008a. The European athecate hydroids and their medusae (Hydrozoa, Cnidaria): Filifera part 3. Revue suisse de Zoologie 115: 221-302., available online at http://www.biodiversitylibrary.org/item/128347#page/5/mode/1up
page(s): 223 [details]

[show all]
Direct child
taxa (33)

[show all]
[sort alpha..]
 Genus Checked: verified by a taxonomic editorBouillonactinia Miglietta, McNally & Cunningham, 2010
Genus Checked: verified by a taxonomic editorClava Gmelin, 1788
Genus Checked: verified by a taxonomic editorClavactinia Thornely, 1904
Genus Checked: verified by a taxonomic editorCnidostoma Vanhöffen, 1911
Genus Checked: verified by a taxonomic editorFiordlandia Schuchert, 1996
Genus Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorHydrissa Stechow, 1922
Genus Checked: verified by a taxonomic editorHydrocorella Stechow, 1921
Genus Checked: verified by a taxonomic editorJanaria Stechow, 1921
Genus Checked: verified by a taxonomic editorParahydractinia Xu & Huang, 2006
Genus Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorSchuchertinia Miglietta, McNally & Cunningham, 2010
Genus Checked: verified by a taxonomic editorStylactaria Stechow, 1921

Genus Checked: verified by a taxonomic editorCystactinia Brooks, 1964 † (nomen dubium, publication not valid according to rules of ICZN)

Genus Checked: verified by a taxonomic editorArchaeoceania Picard & Rahm, 1954 accepted as Checked: verified by a taxonomic editorCnidostoma Vanhöffen, 1911
Genus Checked: verified by a taxonomic editorCalycidion Fewkes, 1882 accepted as Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorCionistes Wright, 1861 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorCytaeandra Haeckel, 1879 accepted as Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorDysmorphosa Philippi, 1842 accepted as Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorEchinochorium Hassal, 1841 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorEuhydractinia Broch, 1910 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorHalorhiza Stechow, 1962 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorHydractomma Stechow, 1921 accepted as Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorHydroconophora Gregory, 1931 accepted as Checked: verified by a taxonomic editorHydrocorella Stechow, 1921
Genus Checked: verified by a taxonomic editorHydrodendrium Nutting, 1905 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorHydronema Stechow, 1921c accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorNuttingia Stechow, 1909 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorPodocorella Stechow, 1921 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Genus Checked: verified by a taxonomic editorPodocoryne Luetken, 1850 accepted as Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorPolyhydra Stechow, 1962 accepted as Checked: verified by a taxonomic editorHydrocorella Stechow, 1921
Genus Checked: verified by a taxonomic editorRhizocline Allman, 1864c accepted as Checked: verified by a taxonomic editorPodocoryna M. Sars, 1846
Genus Checked: verified by a taxonomic editorStylactis Allman, 1864 accepted as Checked: verified by a taxonomic editorStylactaria Stechow, 1921
Genus Checked: verified by a taxonomic editorSynhydra Quatrefages, 1843 accepted as Checked: verified by a taxonomic editorHydractinia Van Beneden, 1841
Environment marine, fresh, terrestrial
Fossil range recent + fossil
Links Unreviewed: has not been verified by a taxonomic editorTo GenBank  
Unreviewed: has not been verified by a taxonomic editorTo ITIS
Notes 
From editor or global species database
Checked: verified by a taxonomic editorDiagnosis Hydroids sessile, hydranths often polymorphic, usually epizootic; hydrorhiza either perisarc-covered stolonal tubes, or as an encrusting mat resulting from the coalescence of the stolonal system, either covered by a common layer of perisarc or with naked coenosarc; in some genera the hydrorhizal mat is reinforced by a calcareous skeleton; frequently with chitinous or calcareous spines forming sometimes pillars and branches, sometimes with protective tubes overarching the hydranths; gastrozooids either with one or several whorls of filiform tentacles beneath hypostome, or with scattered tentacles on the upper half of the body, exceptionally with one or two tentacles only; dactylozooids, when present, with no tentacles. Gonophores typically borne on gonozooids, these with one or more whorls of filiform tentacles or without tentacles and mouth (= blastostyles), giving rise to fixed sporosacs, eumedusoids, or free medusae.
Medusa umbrella more or less bell-shaped, with or without slight apical process; manubrium tubular to sac-shaped, not extending beyond bell margin; with or without gastric peduncle; mouth with four simple or branched oral lips drawn out to form arms with terminal nematocyst clusters; four, eight, or more, solid, marginal tentacles, tentacles not in groups; four radial canals and circular canal; gonads on manubrium, interradial, sometimes extending along basal, perradial protrusions of the manubrium; with or without ocelli. [details]

Checked: verified by a taxonomic editorTaxonomy Several genera of the Hydractiniidae have been redefined by Miglietta et al (2010, 2012) based on molecular phylogenies. Many of these genera are now not diagnosable by morphological traits. Moreover, not all species were included in the phylogeny and thus for some Hydractinia species it is unclear to which genus they belong. If it is unlcear to what genus a hydractiniid species belongs, then Hydractinia should be selected as default. More revisory work is clearly needed to obtain a stable system [details]
ImageChecked: verified by a taxonomic editor 
Family Hydractiniidae
Family Hydractiniidae
LSID urn:lsid:marinespecies.org:taxname:1601
Taxonomic
Edit history
 
Date   action   by
2004-12-21 15:54:05Z  created  db_admin
2009-04-28 12:00:23Z  changed  Schuchert, Peter
2010-04-26 11:37:38Z  changed  Schuchert, Peter
  
[Taxonomic tree] [List Species] [Google] [Google scholar] [Google images]
  Citation: Schuchert, P. (2014). Hydractiniidae L. Aggasiz, 1862. In: Schuchert, P. (2014) World Hydrozoa database. Accessed through: Schuchert, P. (2014) World Hydrozoa database at http://www.marinespecies.org/hydrozoa/aphia.php?p=taxdetails&id=1601 on 2014-08-22