• Actinothoe Fischer, 1889
• Actinothoe (Sagartia)
• Actinothoe (Sagartia) anguicoma (Price in Johnston, 1847) accepted as Actinothoe anguicoma (Price in Johnston, 1847)
• Actinothoe (Sagartia) georgiana (Carlgren, 1899) accepted as Actinothoe georgiana (Carlgren, 1899)
• Actinothoe (Sagartia) lacerata (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848)
• Actinothoe (Sagartia) sphyrodeta (Gosse, 1858) accepted as Actinothoe sphyrodeta (Gosse, 1858)
• Actinothoe albens (Stuckey, 1909) accepted as Anthothoe albens (Stuckey, 1909)
• Actinothoe albocincta (Hutton, 1879) accepted as Anthothoe albocincta (Hutton, 1879)
• Actinothoe alderi (Cocks, 1851)
• Actinothoe anguicoma (Price in Johnston, 1847)
• Actinothoe bellii (Cocks, 1851)
• Actinothoe bradleyi (Verrill, 1869)
• Actinothoe californica Carlgren, 1940 accepted as Sagartiogeton californicus (Carlgren, 1940)
• Actinothoe carlgreni (Haddon & Duerden, 1896)
• Actinothoe chilensis (Lesson, 1830) accepted as Anthothoe chilensis (Lesson, 1830)
• Actinothoe clavata (Ilmoni, 1830) accepted as Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778)
• Actinothoe eruptaurantia Field, 1949 accepted as Aiptasiogeton eruptaurantia (Field, 1949)
• Actinothoe georgiana (Carlgren, 1899)
• Actinothoe glandulosa Carlgren, 1954
• Actinothoe gracillima (McMurrich, 1887)
• Actinothoe gravieri (Pax, 1912)
• Actinothoe hastata (Wright, 1859) accepted as Sagartia hastata Wright, 1859 accepted as Cylista hastata Wright, 1859
• Actinothoe ignea (Fischer, 1874)
• Actinothoe kerguelensis (Pax, 1922)
• Actinothoe lacerata (Dalyell, 1848) accepted as Sagartiogeton laceratus (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848)
• Actinothoe laceratus (Dalyell, 1848) accepted as Sagartiogeton laceratus (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848)
• Actinothoe lacerrata accepted as Sagartiogeton laceratus (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848)
• Actinothoe lobata (Carlgren, 1899)
• Actinothoe longa (Verrill, 1928) accepted as Telmatactis decora (Hemprich & Ehrenberg in Ehrenberg, 1834)
• Actinothoe milmani (Haddon & Shackleton, 1893)
• Actinothoe modesta (Verrill, 1866)
• Actinothoe neozealandica (Carlgren, 1924) accepted as Anthothoe neozelanica (Carlgren, 1924)
• Actinothoe neozelanica (Carlgren, 1924) accepted as Anthothoe neozelanica (Carlgren, 1924)
• Actinothoe nigropunctata (Stimpson, 1851) accepted as Sagartia nigropunctata (Stimpson, 1856) accepted as Cylista nigropunctata (Stimpson, 1856)
• Actinothoe pallida Holdsworth accepted as Metridium senile (Linnaeus, 1761)
• Actinothoe paradoxa (McMurrich, 1893)
• Actinothoe patagonica (Carlgren, 1899)
• Actinothoe patagonicha accepted as Actinothoe patagonica (Carlgren, 1899)
• Actinothoe pellucida (Cocks, 1851)
• Actinothoe plebeia (Haddon, 1898)
• Actinothoe pugnax (Verrill, 1928) (unaccepted)
• Actinothoe pusilla (Verrill, 1928) accepted as Epiphellia pusilla (Verrill, 1928)
• Actinothoe pustulata (McMurrich, 1887)
• Actinothoe qingdaoensis Pei, 1993
• Actinothoe sancti matthaei (Mc Murrich, 1893) accepted as Actinothoe sanmatiensis (McMurrich, 1893)
• Actinothoe sanctimatthaei (McMurrich, 1893) accepted as Actinothoe sanmatiensis (McMurrich, 1893)
• Actinothoe sanmatiensis (McMurrich, 1893)
• Actinothoe sphyrodeta (Gosse, 1858)
• Actinothoe sphyrodeta candida Gosse accepted as Actinothoe sphyrodeta (Gosse, 1858)
• Actinothoe sphyrodeta xanthopis Gosse accepted as Actinothoe sphyrodeta (Gosse, 1858)
• Actinothoe undata (Müller, 1778) accepted as Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778)
• Actinothoe vagrans (Stuckey, 1909) accepted as Anthothoe vagrans (Stuckey, 1909)
• Actinothoe viduata (Müller, 1776) accepted as Sagartia (Cylista) viduata (Müller, 1776)
• Actinothoe yarellii (Cocks, 1851) accepted as Actinothoe yarrellii (Cocks, 1851)
• Actinothoe yarrellii (Cocks, 1851)
• Sagartia (Actinothoe)
• Sagartia (Actinothoe) ignea (Fischer, 1874) accepted as Actinothoe ignea (Fischer, 1874)
• Sagartia (Actinothoe) sphyrodeta (Gosse, 1858) accepted as Actinothoe sphyrodeta (Gosse, 1858)
• Sagartia (Actinothoe) sphyrodeta candida (uncertain > nomen dubium)
• Sagartia (Actinothoe) sphyrodeta roseola (uncertain > nomen dubium)
• Sagartia (Actinothoe) sphyrodeta xanthopis (uncertain > nomen dubium)
• Sagartiogeton (Actinothoe)
• Sagartiogeton (Actinothoe) laceratus (Dalyell, 1848) accepted as Sagartiogeton laceratus (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848)
• Sagartiogeton (Actinothoe) undatus (Müller, 1778) accepted as Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778)
• Sagartiogeton (Actinothoe) undatus anguicomus (uncertain > nomen dubium)
• Sagartiogeton (Actinothoe) viduatus (Müller, 1776) accepted as Sagartia (Cylista) viduata (Müller, 1776)