URMO Taxon list
Acontiactis gokhaleae England, 1990
Acontiophorum bombayense Parulekar, 1968
Acontiophorum bombayensis Parulekar, 1968 accepted as Acontiophorum bombayense Parulekar, 1968
Acontiophorum mortenseni Carlgren, 1938
Acontiophorum niveum Fautin, Eppard & Mead, 1988
Acraspedanthus elongatus Carlgren, 1924 accepted as Isoparactis ferax (Stuckey, 1909)
Acraspedanthus ferax (Stuckey, 1909) accepted as Isoparactis ferax (Stuckey, 1909)
Actinauge abyssorum Carlgren, 1934
Actinauge bocki Carlgren, 1943
Actinauge chilensis Carlgren, 1959
Actinauge cristata Riemann-Zürneck, 1986
Actinauge granulata Carlgren, 1928
Actinauge longicornis (Verrill, 1882)
Actinauge richardi (Marion, 1906)
Actinauge verrilli McMurrich, 1893 accepted as Actinauge verrillii McMurrich, 1893
Actinauge verrillii McMurrich, 1893
Actinoscyphia aurelia (Stephenson, 1918)
Actinoscyphia plebeia (McMurrich, 1893)
Actinoscyphia saginata (Verrill, 1882)
Actinoscyphia verrilli (Gravier, 1918)
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 clavata (Ilmoni, 1830) accepted as Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778)
Actinothoe georgiana (Carlgren, 1899)
Actinothoe glandulosa Carlgren, 1954
Actinothoe gracillima (McMurrich, 1887)
Actinothoe gravieri (Pax, 1912)
Actinothoe ignea (Fischer, 1874)
Actinothoe kerguelensis (Pax, 1922)
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 paradoxa (McMurrich, 1893)
Actinothoe patagonica (Carlgren, 1899)
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 sanctimatthaei (McMurrich, 1893) accepted as Actinothoe sanmatiensis (McMurrich, 1893)
Actinothoe sanmatiensis (McMurrich, 1893)
Actinothoe sphyrodeta (Gosse, 1858)
Adamsia carciniopados (Otto, 1823) accepted as Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776)
Adamsia fusca Milne Edwards, 1857
Adamsia involvens McMurrich, 1893 accepted as Paracalliactis consors (Verrill, 1882)
Adamsia obvolva Daly, Ardelean, Cha, Campbell & Fautin, 2004 accepted as Paracalliactis obvolva (Daly, Ardelean, Cha, Campbell & Fautin, 2004)
Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776)
Adamsia sociabilis Verrill, 1882 accepted as Calliactis sociabilis (Verrill, 1882)
Aiptasia californica Carlgren, 1952 accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasia carnea Andrès, 1881 accepted as Aiptasia mutabilis (Gravenhorst, 1831)
Aiptasia diaphana (Rapp, 1829) accepted as Exaiptasia diaphana (Rapp, 1829)
Aiptasia eruptaurantia (Field, 1949) accepted as Aiptasiogeton eruptaurantia (Field, 1949)
Aiptasia erythrochila (Fischer, 1874) accepted as Diadumene cincta Stephenson, 1925
Aiptasia insignis Carlgren, 1941
Aiptasia inula (Duchassaing & Michelotti, 1864) accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasia leiodactyla Pax, 1910 accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasia mimosa (Duchassaing & Michelotti, 1864) accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasia mutabilis (Gravenhorst, 1831)
Aiptasia pallida (Agassiz in Verrill, 1864) accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasia parva Carlgren, 1938 accepted as Aiptasiogeton parva (Carlgren, 1938)
Aiptasia prima (Stephenson, 1918) (uncertain )
Aiptasia pulchella Carlgren, 1943 accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasia saxicola Andrès, 1881 accepted as Aiptasia diaphana (Rapp, 1829) accepted as Exaiptasia diaphana (Rapp, 1829)
Aiptasia tagetes (Duchassaing & Michelotti, 1864) accepted as Exaiptasia pallida (Agassiz in Verrill, 1864) represented as Exaiptasia diaphana (Rapp, 1829)
Aiptasiogeton comatus (Andrès, 1881) accepted as Aiptasiogeton pellucidus (Hollard, 1848) accepted as Aiptasiogeton hyalinus (Delle Chiaje, 1822)
Aiptasiogeton eruptaurantia (Field, 1949)
Aiptasiogeton hyalinus (Delle Chiaje, 1822)
Aiptasiogeton parva (Carlgren, 1938)
Aiptasiogeton pellucidus (Hollard, 1848) accepted as Aiptasiogeton hyalinus (Delle Chiaje, 1822)
Aiptasiomorpha elongata Carlgren, 1951
Aiptasiomorpha minima (Stephenson, 1918)
Aiptasiomorpha paxi Stephenson, 1920
Aiptasiomorpha texaensis Carlgren & Hedgepeth, 1952
Alicia beebei Carlgren, 1940
Alicia mirabilis Johnson, 1861
Alicia pretiosa (Dana, 1846)
Alicia rhadina Haddon & Shackleton, 1893
Alicia sansibarensis Carlgren, 1900
Alicia uruguayensis Carlgren, 1927
Allantactis parasitica Danielssen, 1890
Amphianthus armatus Carlgren, 1928
Amphianthus bathybium Hertwig, 1882
Amphianthus brunneus (Pax, 1909)
Amphianthus californicus Carlgren, 1936
Amphianthus capensis Carlgren, 1928
Amphianthus caribaea (Verrill, 1899) accepted as Amphianthus caribaeus (Verrill, 1899)
Amphianthus caribaeus (Verrill, 1899)
Amphianthus crassus (Gravier, 1918) accepted as Gliactis crassa Gravier, 1918
Amphianthus dohrnii (Koch, 1878)
Amphianthus impeditus (Gravier, 1918) accepted as Stephanauge impedita (Gravier, 1918)
Amphianthus ingolfi Carlgren, 1942
Amphianthus inornata (Gravier, 1918) accepted as Stephanauge inornata (Gravier, 1918)