Halichondriidae Gray, 1867
Hymeniacidon actites (Ristau, 1978)
Hymeniacidon adreissiformis Dickinson, 1945
Hymeniacidon agminata Ridley, 1884
Hymeniacidon angulosus (Lamarck, 1814)
Hymeniacidon aplysillioides (Lendenfeld, 1888)
Hymeniacidon assimilis (Levinsen, 1887)
Hymeniacidon atlantica Burton, 1948
Hymeniacidon caerulea Pulitzer-Finali, 1986
Hymeniacidon calcifera Row, 1911
Hymeniacidon calva (Ridley, 1881)
Hymeniacidon centrotyla Hentschel, 1914
Hymeniacidon chloris de Laubenfels, 1950
Hymeniacidon conica (Kirk, 1909)
Hymeniacidon consimilis Ferrer-Hernandez, 1914
Hymeniacidon corticata (Thiele, 1905)
Hymeniacidon cydonium (Linnaeus, 1767)
Hymeniacidon digitata (Hansen, 1885)
Hymeniacidon dubia Burton, 1932
Hymeniacidon dystacta de Laubenfels, 1954
Hymeniacidon elongatus (Lamarck, 1814)
Hymeniacidon fallax Bowerbank, 1866
Hymeniacidon fasciculata (Fristedt, 1887)
Hymeniacidon fernandezi Thiele, 1905
Hymeniacidon flaccida Pulitzer-Finali, 1996
Hymeniacidon flavia Sim & Lee, 2003
Hymeniacidon fristedti (Topsent, 1913)
Hymeniacidon glabrata Burton, 1954
Hymeniacidon gracilis (Hentschel, 1912)
Hymeniacidon halichondroides (Burton, 1932)
Hymeniacidon hauraki Brøndsted, 1924
Hymeniacidon heliophila (Parker, 1910)
Hymeniacidon iberica (Ferrer-Hernandez, 1914)
Hymeniacidon informis (Burton, 1930)
Hymeniacidon insutus Koltun, 1964
Hymeniacidon kerguelensis Hentschel, 1914
Hymeniacidon kitchingi (Burton, 1935)
Hymeniacidon longistylus Desqueyroux, 1972
Hymeniacidon luxurians (Lieberkühn, 1859)
Hymeniacidon mixta (Sarà, 1958)
Hymeniacidon ovalae Tanita & Hoshino, 1989
Hymeniacidon perforatus (Thiele, 1898)
Hymeniacidon perlevis (Montagu, 1818)
Hymeniacidon petrosioides Dendy, 1905
Hymeniacidon plumiger Bowerbank, 1874
Hymeniacidon plumigera Bowerbank, 1874
Hymeniacidon proteus (Ridley, 1884)
Hymeniacidon racemosa Brøndsted, 1924
Hymeniacidon reptans (Cuartas, 1991)
Hymeniacidon rigida Dendy, 1897
Hymeniacidon rubiginosa Thiele, 1905
Hymeniacidon rugosa (Schmidt, 1868)
Hymeniacidon rugosus (Schmidt, 1868)
Hymeniacidon scariola (Lamarck, 1814)
Hymeniacidon simplex (Bowerbank, 1866)
Hymeniacidon simplicima (Bowerbank, 1874)
Hymeniacidon sinapium de Laubenfels, 1930
Hymeniacidon sphaerodigitata Bergquist, 1970
Hymeniacidon spherodigitata Bergquist, 1970
Hymeniacidon stylifera (Stephens, 1915)
Hymeniacidon sublittoralis Samaai & Gibbons, 2005
Hymeniacidon timonovi (Rezvoi, 1931)
Hymeniacidon torquata Topsent, 1916
Hymeniacidon tuscara (Ristau, 1978)
Hymeniacidon tuscarus (Ristau, 1978)
Hymeniacidon ungodon de Laubenfels, 1932
Hymeniacidon variospiculata Dendy, 1922
Hymeniacidon vernonensis Hooper, Cook, Hobbs & Kennedy, 1997
Hymeniacidon virgulatum Bowerbank, 1875, 1882)
Hymeniacidon zosterae Row, 1911
Stylinos angulosus (Lamarck, 1814)
Stylotella agminata (Ridley, 1884)
Stylotella inaequalis (Hentschel)