Traits Taxon list
Alcyonidioides mytili (Dalyell, 1848)
Alcyonidium (Paralcyonidium) vermiculare Okada, 1925
Alcyonidium adustum Winston & Hayward, 2012
Alcyonidium albescens Winston & Key, 1999
Alcyonidium albidum Alder, 1857
Alcyonidium androsovae d'Hondt, 1983
Alcyonidium anglei d'Hondt & Goyffon, 1991
Alcyonidium antarcticum Waters, 1904
Alcyonidium argyllaceum Castric-Fey, 1971
Alcyonidium australe d'Hondt & Moyano, 1979
Alcyonidium bullitum Seo, Chae, Winston, Zágoršek & Gordon, 2018
Alcyonidium busanensis Seo, Chae, Winston, Zágoršek & Gordon, 2018
Alcyonidium candidum Ryland, 1963
Alcyonidium capronae Winston & Hakansson, 1986
Alcyonidium cellarioides Calvet, 1900
Alcyonidium chondroides O'Donoghue & de Watteville, 1937
Alcyonidium clavum Hirose, 2022
Alcyonidium columbianum O'Donoghue & O'Donoghue, 1926
Alcyonidium columnaris d'Hondt, 2014
Alcyonidium condylocinereum Porter, 2004
Alcyonidium diaphanum (Hudson, 1778)
Alcyonidium diaphanum alcilobatum d'Hondt & Mawatari, 1986
Alcyonidium diaphanum farrei d'Hondt, 2014
Alcyonidium diaphanum nordicum d'Hondt, 2014
Alcyonidium disciforme Smitt, 1872
Alcyonidium duplex Prouho, 1892
Alcyonidium effusum Norman, 1909
Alcyonidium eightsi Winston & Hayward, 1994
Alcyonidium enteromorpha Soule, 1951
Alcyonidium epispiculum Porter & Hayward, 2004
Alcyonidium erectum Silén, 1942
Alcyonidium excavatum Hincks, 1880
Alcyonidium exiguum Vieira, Migotto & Winston, 2014
Alcyonidium flabelliforme Kirkpatrick, 1902
Alcyonidium flustroides Busk, 1886
Alcyonidium foliaceum Silén, 1942
Alcyonidium gelatinosum (Linnaeus, 1761)
Alcyonidium gelatinosum anderssoni Abrikosov, 1932
Alcyonidium gelatinosum cookae d'Hondt, 1983
Alcyonidium gelatinosum diaphanum (Farre, 1837)
Alcyonidium gelatinosum pacificum d'Hondt, 2014
Alcyonidium hauffi Marcus, 1939
Alcyonidium hirsutum (Fleming, 1828)
Alcyonidium hydrocoalitum Porter, 2004
Alcyonidium irregulare Kluge, 1962
Alcyonidium jauhar Tilbrook & Gordon, 2015
Alcyonidium kermadecense Gordon, 1984
Alcyonidium lutosum Winston & Hayward, 2012
Alcyonidium maculosum Winston & Hayward, 2012
Alcyonidium mamillatum Alder, 1857
Alcyonidium mamillatum erectum Andersson, 1902
Alcyonidium multigemmatum Gordon, 1986
Alcyonidium mytili Dalyell, 1848 accepted as Alcyonidioides mytili (Dalyell, 1848)
Alcyonidium nanum Silén, 1942
Alcyonidium nipponicum d'Hondt & Mawatari, 1986
Alcyonidium nodosum O'Donoghue & de Watteville, 1944
Alcyonidium nostoch (A.P.de Candolle) Lamouroux, 1813
Alcyonidium pachydermatum Denisenko, 1996
Alcyonidium papillatum O'Donoghue, 1924
Alcyonidium parasiticum (Fleming, 1828)
Alcyonidium pedunculatum Robertson, 1902
Alcyonidium pelagosphaerum Porter & Hayward, 2004
Alcyonidium polyoum (Hassall, 1841)
Alcyonidium polyoum porterae d'Hondt & Goyffon, 2005
Alcyonidium polypylum Marcus, 1941
Alcyonidium proboscideum Kluge, 1962
Alcyonidium protoseideum
Alcyonidium pseudodisciforme Denisenko, 2009
Alcyonidium pulposum Seo, Chae, Winston, Zágoršek & Gordon, 2018
Alcyonidium pulvinatum Vieira, Migotto & Winston, 2014
Alcyonidium radicellatum Kluge, 1946
Alcyonidium rhomboidale O'Donoghue, 1924
Alcyonidium rugosum Silén, 1942
Alcyonidium rylandi d'Hondt & Goyffon, 2005
Alcyonidium sagamianum Mawatari, 1953
Alcyonidium sanguineum Cook, 1985
Alcyonidium scolecoideum Porter & Hayward, 2004
Alcyonidium shizuoi d'Hondt & Mawatari, 1986
Alcyonidium sileni d'Hondt, 2014
Alcyonidium simulatum Porter & Hayward, 2004
Alcyonidium torpedo d'Hondt, 2006
Alcyonidium torquatum Vieira, Migotto & Winston, 2014
Alcyonidium vahine d'Hondt & Mascarell, 2010
Alcyonidium variegatum Prouho, 1892
Alcyonidium vermiculare Okada, 1925 represented as Alcyonidium (Paralcyonidium) vermiculare Okada, 1925
Alcyonidium verrilli Osburn, 1912
Alcyonidium vicarians d'Hondt & Chimenz Gusso, 2006
Alcyonidium vigelandi d'Hondt, 2014
Alcyonidium vitreum Vieira, Migotto & Winston, 2014
Ascorhiza mawatarii d'Hondt, 1983
Ascorhiza occidentalis Fewkes, 1889
Bockiella angusta Silén, 1942
Bockiella arcatumida Hirose, 2022
Bockiella minima Cook, 1964
Cephaloalcyonidium morchellanum d'Hondt, 2006
Clavopora hystricis Busk, 1874
Demafinga pennsylvanica Cuffey, Dodge & Skema, 2014 †
Haywardozoon atlantae d'Hondt & Hayward, 1981
Haywardozoon inarmatum (Hayward, 1978)
Haywardozoon pacificum Grischenko, Gordon & Melnik, 2018