Ceriantheomorphe adelita Lopes, Morandini & Stampar in Lopes et al., 2019
Ceriantheopsis americana (Agassiz in Verrill, 1864)
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
Pachycerianthus borealis (Verrill, 1873)
Pachycerianthus dohrni (van Beneden, 1924)
Pachycerianthus multiplicatus Carlgren, 1912
Pachycerianthus solitarius (Rapp, 1829)