Higher Classification: > Kingdom Animalia > Subkingdom Eumetazoa > Phylum Cnidaria > Subphylum Medusozoa > Class Hydrozoa > Subclass Hydroidolina > Order Anthoathecata > Suborder Filifera > Superfamily Hydractinoidea > Family Hydractiniidae

Hydractinia Van Beneden, 1844

Rank: Genus
Taxon Status: accepted

Children

Hydractinia aculeata (Wagner, 1833)
Hydractinia arctica (Jäderholm, 1902)
Hydractinia carica Bergh, 1887
Hydractinia echinata (Fleming, 1828)
Hydractinia humilis Bonnevie, 1898
Hydractinia ingolfi (Kramp, 1932)
Hydractinia monocarpa Allman, 1876
Hydractinia proboscidea (Hincks, 1868)
Hydractinia sarsii (Steenstrup, 1850)

Vernaculars (+) (-)

Dutch: zeerasp sources: Thiele, J. & Jaeckel, S. (1931). Muscheln der Deutschen Tiefsee Expedition. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer “Valdivia”, 1898–1899. 21: 159-268, pls 6-10.

Japanese: ウミヒドラ属

Literature

original description	Beneden, P.J. van. (1844). Sur les genres Eleutherie et Synhydre. Bulletins de l'Académie Royale des Sciences et Belles-Lettres de Bruxelles. 11: 305-314.
basis of record	van der Land, J.; Vervoort, W.; Cairns, S.D.; Schuchert, P. (2001). Hydrozoa, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 112-120
additional source	Bouillon, J.; Boero, F. (2000). Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species. Thalassia Salent. 24: 47-296
additional source	NODC. (1997). NODC Taxonomic codes.
additional source	Schuchert, P. (2008). The European athecate hydroids and their medusae (Hydrozoa, Cnidaria): Filifera part 3. Revue suisse de Zoologie. 115: 221-302.

Genbank

Citation

Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Hydractinia Van Beneden, 1844. Via: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvantidis, C.; Appeltans, W. (2011) European Register of Marine Species, Accessed through PESI at http://www.eu-nomen.eu/portal/taxon.php?GUID=urn:lsid:marinespecies.org:taxname:117117