Actinia candida Müller, 1776 accepted as Metridium senile (Linnaeus, 1761) (additional source)
Actinothoe clavata (Ilmoni, 1830) accepted as Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778) (additional source)
Aiptasiogeton hyalinus (Delle Chiaje, 1822) (basis of record)
Andresia parthenopea (Andrès, 1883) accepted as Andresia partenopea (Andrès, 1883) (basis of record)
Anemonia sargassensis Hargitt, 1908 (basis of record)
Anemonia sulcata (Pennant, 1777) (additional source)
Antholoba achates (Drayton in Dana, 1846) (basis of record)
Anthopleura biscayensis (Fischer, 1874) (basis of record)
Arachnanthus oligopodus (Cerfontaine, 1891) (additional source)
Botrucnidifer norvegicus Carlgren, 1912 (basis of record)
Cereus filiformis (Rapp, 1829) (basis of record)
Cerianthula mediterranea Beneden, 1897 (additional source)
Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (basis of record)
Corallimorphus rigidus Moseley, 1877 (basis of record)
Diadumene cincta Stephenson, 1925 (additional source)
Diadumene leucolena (Verrill, 1866) (additional source)
Edwardsia allmani McIntosh, 1866 accepted as Edwardsia allmanni McIntosh, 1865 (basis of record)
Edwardsia beautempsii Quatrefages, 1842 (basis of record)
Edwardsiella janthina (Andrès, 1881) (basis of record)
Edwardsiella loveni (Carlgren, 1892) (basis of record)
Epizoanthus incrustatus Düben & Koren, 1847 accepted as Epizoanthus papillosus Johnston, 1842 (additional source)
Halcampoides purpurea (Studer, 1879) accepted as Halcampoides purpureus (Studer, 1879) (additional source)
Haliplanella lineata (Verrill, 1869) accepted as Diadumene lineata (Verrill, 1869) (additional source)
Isarachnactis longipes Carlgren, 1924 (basis of record)
Isarachnanthus maderensis (Johnson, 1861) (basis of record)
Isaurus duchassaingi Andres, 1884 accepted as Isaurus tuberculatus Gray, 1828 (additional source)
Nematostella nathorstii (Carlgren, 1921) (basis of record)
Pachycerianthus dohrni (van Beneden, 1924) (basis of record)
Pachycerianthus solitarius (Rapp, 1829) (basis of record)
Paranthus chromatoderus (Schmarda, 1852) (basis of record)
Peachia boeckii (Danielssen & Koren, 1856) accepted as Peachia hastata Gosse, 1855 (basis of record)
Peachia hastata Gosse, 1855 (additional source)
Sagartia affinis Johnson, 1861 accepted as Anthothoe affinis (Johnson, 1861) (additional source)
Scolanthus nidarosiensis (Carlgren, 1942) (basis of record)
Segonzactis hartogi Vafidis & Chintiroglou, 2002 (basis of record)
Synarachnactis bournei (Fowler, 1897) accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Telmatactis vestita (Johnson, 1861) (basis of record)
Zoanthus alderi Gosse, 1860 (basis of record)