All Species

99 Species in Family Hydractiniidae

Scientific Name	Author	English Name
Clava leptostyla	Agassiz, 1860
Clava multicornis	(Forsskål, 1775)	Club hydroid
Corydendrium fruticosum	Fraser, 1914
Corydendrium parasiticum	(Linnaeus, 1767)
Corydendrium splendidum	unspecified
Cordylophora lacustris	unspecified
Hydractinia aculeata	(Wagner, 1833)
Hydractinia aggregata	Fraser, 1911
Hydractinia altispina	Millard, 1955	High-spined commensal hydroid
Hydractinia americana	(Edwards, 1972)
Hydractinia angusta	Hartlaub, 1904
Hydractinia antonii	Miglietta, 2006
Hydractinia arge	(Clarke, 1882)
Hydractinia armata	Fraser, 1940
Hydractinia australis	(Schuchert, 1996)
Hydractinia bayeri	Hirohito, 1984
Hydractinia bella	(Hand, 1961)
Hydractinia betkensis	(Watson, 1978)
Hydractinia brachyurae	(Hirohito, 1988)
Hydractinia californica	Torrey, 1904
Hydractinia canalifera	Millard, 1957
Hydractinia carcinicola	(Hiro, 1939)
Hydractinia carica	Bergh, 1887
Hydractinia carolinae	Fraser, 1912
Hydractinia cryptogonia	Hirohito, 1988
Hydractinia dendritica	Hickson & Gravely, 1907
Hydractinia diogenes	Millard, 1959
Hydractinia disjuncta	Fraser, 1938
Hydractinia dubia	(Mayer, 1900)
Hydractinia echinata	(Fleming, 1828)	Snailfur
Hydractinia epiconcha	Stechow, 1907
Hydractinia epispongia	Fraser, 1938
Hydractinia fucicola	(Sars, 1846)
Hydractinia galeai	Calder & Watling, 2021
Hydractinia granulata	Hirohito, 1988
Hydractinia hancocki	Fraser, 1938
Hydractinia humilis	Bonnevie, 1898
Hydractinia inabai	(Hirohito, 1988)
Hydractinia inermis	(Allman, 1872)
Hydractinia laevispina	Fraser, 1911
Hydractinia leizhouensis	Huang, Zhang et Yang, 2020
Hydractinia longispina	Fraser, 1938
Hydractinia milleri	Torrey, 1902	Miller hydractinia
Hydractinia minima	(Trinci, 1903)
Hydractinia minoi	(Alcock, 1892)
Hydractinia minuta	(Mayer, 1900)
Hydractinia misakiensis	(Iwasa, 1934)
Hydractinia monocarpa	Allman, 1847
Hydractinia monoon	(Hirohito, 1988)
Hydractinia multispina	Fraser, 1938
Hydractinia multitentaculata	(Millard, 1975)
Hydractinia novaezelandiae	Schuchert, 1996
Hydractinia ocellata	(Agassiz & Mayer, 1902)
Hydractinia otagoensis	(Schuchert, 1996)
Hydractinia pacifica	Hartlaub, 1905	White bottlebrush hydroid
Hydractinia parvispina	Hartlaub, 1905
Hydractinia piscicola	(Komai, 1932)
Hydractinia polycarpa	Fraser, 1938
Hydractinia polyclina	Agassiz, 1862
Hydractinia prolifica	Fraser, 1948
Hydractinia quadrigemina	Fraser, 1938
Hydractinia rubricata	Schuchert, 1996
Hydractinia rugosa	Fraser, 1938
Hydractinia selena	(Mills, 1976)
Hydractinia serrata	Kramp, 1943
Hydractinia sodalis	Stimpson, 1858
Hydractinia spinipapillaris	(Hirohito, 1988)
Hydractinia symbiolongicarpus	Buss & Yund, 1989
Hydractinia symbiopollicaris	Buss & Yund, 1989
Hydractinia tenuis	(Browne, 1902)
Hydractinia valens	Fraser, 1941
Hydractinia vallini	Jäderholm, 1926
Hydractinia yerii	(Iwasa, 1934)
Hydrocorella africana	Stechow, 1921
Janaria mirabilis	Stechow, 1921
Latebrahydra schulzei	Calder & Watling, 2021
Podocoryna borealis	(Mayer, 1900)
Podocoryna carnea	Sars, 1846	Smoothspined snailfur
Podocoryne apicata	Kramp, 1959
Podocoryne areolata	(Alder, 1862)
Podocoryne bella	Hand, 1861
Podocoryne meteoris	Thiel, 1938
Podocoryne minima	(Trinci, 1903)
Podocoryne ocellata	(Agassiz & Mayer, 1902)
Podocoryne simplex	Kramp, 1928
Rhizodendrium sterreri	Calder, 1988
Schuchertinia allmanii	(Bonnevie, 1898)
Stylactaria hooperii	(Sigerfoos, 1899)
Stylactis arge	(Clarke, 1882)
Stylactis claviformis	Bouillon, 1965
Stylactis fuciola	(Sars, 1857)
Stylactis pruvoti	(Motz-kossowska, 1905)
Tubiclava lucerna	Allman, 1863
Tubiclava rubra	Farquhar, 1895
Tubiclava triserialis	Fraser, 1938
Turritopsis dohrnii	(Weismann, 1883)
Turritopsis fascicularis	Fraser, 1943
Turritopsis lata	Van Lendenfeld, 1884
Turritopsis nutricula	Mccrady, 1859	Immortal jellyfish

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