• 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)