Alcyonidium Lamouroux, 1813

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 bullatum (A. P. de Candolle) Lamouroux

Alcyonidium candidum Ryland, 1963

Alcyonidium capronae Winston & Håkansson, 1986

Alcyonidium cellarioides Calvet, 1900

Alcyonidium cellaroides Calvet, 1900

Alcyonidium chondroides O'Donoghue & de Watteville, 1937

Alcyonidium columbianum O'Donoghue & O'Donoghue, 1926

Alcyonidium condylocinereum Porter, 2004

Alcyonidium diaphanum (Hudson, 1778)

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 flabelliforme Kirkpatrick, 1902

Alcyonidium flustroides Busk, 1886

Alcyonidium foliaceum Silén, 1942

Alcyonidium gelatinosum (Linnaeus, 1761)

Alcyonidium hauffi Marcus, 1939

Alcyonidium hirsutum (Fleming, 1828)

Alcyonidium hydrocoalitum Porter, 2004

Alcyonidium irregulare Kluge, 1962

Alcyonidium kermadecense Gordon, 1984

Alcyonidium mamillatum Alder, 1857

Alcyonidium multigemmatum Gordon, 1986

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 Kluge, 1962

Alcyonidium papillatum O'Donoghue, 1924

Alcyonidium parasiticum (Fleming, 1828)

Alcyonidium pedunculatum Robertson, 1902

Alcyonidium pelagosphaerum Porter & Hayward, 2004

Alcyonidium polyoum (Hassall, 1841)

Alcyonidium polypylum Marcus, 1941

Alcyonidium proboscideum Kluge, 1962

Alcyonidium protoseideum

Alcyonidium pseudodisciforme Denisenko, 2009

Alcyonidium radicellatum Kluge, 1946

Alcyonidium rhomboidale O'Donoghue, 1924

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 simulatum Porter & Hayward, 2004

Alcyonidium torpedo d'Hondt, 2006

Alcyonidium variegatum Prouho, 1892

Alcyonidium vermiculare Okada, 1925

Alcyonidium verrilli Osburn, 1912