NARMS Taxon list
Arachnactis albida Sars, 1846
Arachnactis bournei Fowler, 1897 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Arachnactis brachiolata A. Agassiz, 1863 accepted as Synarachnactis brachiolata (A. Agassiz, 1863)
Arachnactis lloydii (Gosse, 1859) accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Arachnanthus nocturnus den Hartog, 1977 accepted as Isarachnanthus nocturnus (Hartog, 1977)
Arachnanthus oligopodus (Cerfontaine, 1891)
Arachnanthus sarsi Carlgren, 1912
Botracnidifer norvegicus Carlgren, 1912 accepted as Botrucnidifer norvegicus Carlgren, 1912
Botrucnidifer norvegicus Carlgren, 1912
Ceriantheomorphe adelita Lopes, Morandini & Stampar in Lopes et al., 2019
Ceriantheopsis americana (Agassiz in Verrill, 1864)
Cerianthula mediterranea Beneden, 1897
Cerianthus borealis Verrill, 1873 accepted as Pachycerianthus borealis (Verrill, 1873)
Cerianthus dohrni van Beneden, 1924 accepted as Pachycerianthus dohrni (van Beneden, 1924)
Cerianthus lloydi Gosse, 1859 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Cerianthus membranaceous accepted as Cerianthus membranaceus (Gmelin, 1791)
Cerianthus membranaceus (Gmelin, 1791)
Cerianthus vogti Danielssen, 1890
Isarachnactis longipes Carlgren, 1924
Isarachnanthus cruzi Brito, 1986 accepted as Isarachnanthus maderensis (Johnson, 1861)
Isarachnanthus maderensis (Johnson, 1861)
Isarachnanthus nocturnus (Hartog, 1977)
Pachycerianthus borealis (Verrill, 1873)
Pachycerianthus dohrni (van Beneden, 1924)
Pachycerianthus multiplicatus Carlgren, 1912
Pachycerianthus solitarius (Rapp, 1829)
Synarachnactis bournei (Fowler, 1897) accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859)
Synarachnactis brachiolata (A. Agassiz, 1863)
Synarachnactis lloydii (Gosse, 1859)
Synarachnactis membranacea (Gmelin, 1791) accepted as Cerianthus membranaceus (Gmelin, 1791)