URMO Taxon list
Anthoactis armauerhanseni Leloup, 1932
Anthoactis australiae Carlgren, 1937
Anthoactis benedeni Leloup, 1932
Botruanthus benedeni (Torrey & Kleeberger, 1909)
Botrucnidiata damasi Leloup, 1932
Botrucnidifer norvegicus Carlgren, 1912
Botrucnidifer shtokmani Molodtsova, 2001
Bursanthus bamfordi Leloup, 1968
Calpanthula guinensis Van Beneden, 1897
Ceriantheomorphe adelita Lopes, Morandini & Stampar in Lopes et al., 2019
Ceriantheomorphe ambonensis (Kwietniewski, 1898)
Ceriantheomorphe brasiliensis (Mello-Leitão, 1919)
Ceriantheomorphe brasiliensis Carlgren, 1931 accepted as Ceriantheomorphe brasiliensis (Mello-Leitão, 1919)
Ceriantheopsis americana (Agassiz in Verrill, 1864)
Ceriantheopsis microbotanica Stampar, Mills & Keable, 2020
Ceriantheopsis nikitai Molodtsova, 2001
Ceriantheopsis zealandiaensis Stampar, Mills & Keable, 2020
Cerianthula atlantica Carlgren, 1931 (accepted > unreplaced junior homonym )
Cerianthula atlantica Van Beneden, 1924
Cerianthula benguelaensis Leloup, 1964
Cerianthula braemi Carlgren, 1924
Cerianthula canariensis Carlgren, 1924
Cerianthula lauriei Leloup, 1964
Cerianthula mediterranea Beneden, 1897
Cerianthula melo (Van Beneden, 1897)
Cerianthula michaelsarsi Carlgren, 1924
Cerianthula multiseptata Leloup, 1964
Cerianthula ommanneyi Leloup, 1964
Cerianthula polybotrucnidiata Leloup, 1964
Cerianthula rayneri Leloup, 1964
Cerianthula spinifer (van Beneden, 1897)
Cerianthus andamanensis Alcock, 1893 (uncertain > taxon inquirendum )
Cerianthus bathymetricus Moseley, 1877
Cerianthus brachysoma Cerfontaine, 1891 (uncertain > taxon inquirendum )
Cerianthus brasiliensis Mello-Leitão, 1919 accepted as Ceriantheomorphe brasiliensis (Mello-Leitão, 1919)
Cerianthus dohrni van Beneden, 1924 accepted as Pachycerianthus dohrni (van Beneden, 1924)
Cerianthus filiformis Carlgren, 1922
Cerianthus incertus Carlgren, 1932
Cerianthus japonicus Carlgren, 1922
Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Cerianthus malakhovi Molodtsova, 2001
Cerianthus medusula (Klunzinger, 1877) (uncertain > taxon inquirendum )
Cerianthus membranaceous accepted as Cerianthus membranaceus (Gmelin, 1791)
Cerianthus membranaceus (Gmelin, 1791)
Cerianthus mortenseni Carlgren, 1922
Cerianthus natans Verrill, 1901 (uncertain > taxon inquirendum )
Cerianthus orientalis Verrill, 1866 (uncertain > taxon inquirendum )
Cerianthus profundus Andrès, 1881 (uncertain > taxon inquirendum )
Cerianthus punctatus Uchida, 1979
Cerianthus roulei Carlgren, 1912 accepted as Synarachnactis roulei (Carlgren, 1912)
Cerianthus septentrionalis Van Beneden, 1923 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Cerianthus sulcatus Kwietniewski, 1898
Cerianthus taedus McMurrich, 1910
Cerianthus tenebrarum Alcock, 1893 (uncertain > taxon inquirendum )
Cerianthus valdiviae Carlgren, 1912
Cerianthus vas McMurrich, 1893 (uncertain > taxon inquirendum )
Cerianthus vermicularis (Forbes in Johnston, 1847) (uncertain > taxon inquirendum )
Cerianthus vogti Danielssen, 1890
Engodactylactis formosa (Gravier, 1920)
Hensenanthula dactylifera Van Beneden, 1897
Hensenanthula rotunda Leloup, 1964
Isodactylactis affinis Calabresi, 1927
Isodactylactis borealis Widersten, 1998
Isodactylactis discors (Senna, 1907)
Isodactylactis elegans (van Beneden, 1897)
Isodactylactis kempi Leloup, 1964
Isodactylactis obscura Calabresi, 1927
Isodactylactis praecox (Senna, 1907)
Isodactylactis tardiva (Senna, 1907)
Nautanthus bathypelagicus Leloup, 1964
Ovanthula apoda Van Beneden, 1924
Pachycerianthus aestuari (Torrey & Kleeburger, 1909)
Pachycerianthus antarcticus Stampar, Mills & Keable, 2020
Pachycerianthus benedeni Roule, 1904 (uncertain > nomen dubium )
Pachycerianthus borealis (Verrill, 1873)
Pachycerianthus curacaoensis Den Hartog, 1977
Pachycerianthus delwynae Carter, 1995
Pachycerianthus dohrni (van Beneden, 1924)
Pachycerianthus fimbriatus McMurrich, 1910
Pachycerianthus fiordlandensis Stampar, Mills & Keable, 2020
Pachycerianthus insignis Carlgren, 1951
Pachycerianthus johnsoni (Torrey & Kleeburger, 1909)
Pachycerianthus longistriatus Carter, 1995 accepted as Pachycerianthus delwynae Carter, 1995
Pachycerianthus maua (Carlgren, 1900)
Pachycerianthus monostichus McMurrich, 1910
Pachycerianthus multiplicatus Carlgren, 1912
Pachycerianthus nobilis (Haddon & Shackleton, 1893)
Pachycerianthus oligopodus (Cerfontaine, 1909) accepted as Arachnanthus oligopodus (Cerfontaine, 1891)
Pachycerianthus solitarius (Rapp, 1829)
Paradactylactis cerfensis (Bamford, 1912)
Parovactis clavata Leloup, 1964
Peponactis aequatorialis Van Beneden, 1897
Plesiodactylactis laevis (Calabresi, 1928)
Sacculactis guntheri Leloup, 1964
Solasteractis macropoda Van Beneden, 1897
Sphaeranthula straeleni Leloup, 1955
Syndactylactis chuni Carlgren, 1924
Syndactylactis inermis (van Beneden, 1897)
Syndactylactis macintoshi Leloup, 1964
Syndactylactis major Calabresi, 1927