Anactis pelagica Armandale accepted as Anactinia pelagica Annandale, 1909 (additional source)
Arachnactis albida Sars, 1846 (additional source)
Arachnactis brachiolata A. Agassiz, 1863 accepted as Synarachnactis brachiolata (A. Agassiz, 1863) (additional source)
Arachnactis lloydii (Gosse, 1859) accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthula atlantica Van Beneden, 1924 (original description)
Cerianthula mediterranea Beneden, 1897 (additional source)
Cerianthus americanus Agassiz in Verrill, 1864 accepted as Ceriantheopsis americana (Agassiz in Verrill, 1864) (additional source)
Cerianthus borealis Danielssen, 1860 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthus dohrni van Beneden, 1924 accepted as Pachycerianthus dohrni (van Beneden, 1924) (original description)
Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthus membranaceus (Gmelin, 1791) (additional source)
Cerianthus membraneux accepted as Cerianthus membranaceus (Gmelin, 1791) (additional source)
Cerianthus oligopodus Cerfontaine, 1891 accepted as Arachnanthus oligopodus (Cerfontaine, 1891) (additional source)
Cerianthus septentrionalis Van Beneden, 1923 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (original description)
Cerianthus solitarius (Rapp, 1829) accepted as Pachycerianthus solitarius (Rapp, 1829) (redescription)
Dactylactis benedeni Gravier, 1904 (additional source)
Ovanthula Van Beneden, 1924 (original description)
Ovanthula apoda Van Beneden, 1924 (original description)
Pachycerianthus benedeni Roule, 1904 (additional source)

Belgian Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Irish Exclusive economic Zone for Cerianthula atlantica Carlgren, 1931 
Irish Exclusive economic Zone for Ovanthula apoda Van Beneden, 1924 
Italian Exclusive Economic Zone for Arachnactis lobiancoi Carlgren, 1912 
Italian Exclusive Economic Zone for Cerianthula mediterranea Beneden, 1897 
Italian Exclusive Economic Zone for Cerianthus dohrni van Beneden, 1924 
Italian Exclusive Economic Zone for Cerianthus membranaceus (Gmelin, 1791) 
Italian Exclusive Economic Zone for Cerianthus oligopodus Cerfontaine, 1891 
Italian Exclusive Economic Zone for Cerianthus solitarius (Rapp, 1829) 
Mediterranean Sea for Cerianthus dohrni van Beneden, 1924 
North Atlantic for Cerianthula atlantica Van Beneden, 1924 
North Atlantic for Ovanthula apoda Van Beneden, 1924 
Norwegian Exclusive Economic Zone for Arachnactis albida Sars, 1846 
Norwegian Exclusive Economic Zone for Arachnactis albida Sars, 1846 
Norwegian Exclusive Economic Zone for Arachnactis lloydii (Gosse, 1859) 
Norwegian Exclusive Economic Zone for Arachnactis lloydii (Gosse, 1859) 
Norwegian Exclusive Economic Zone for Cerianthus septentrionalis Van Beneden, 1923 
United Kingdom Exclusive Economic Zone for Arachnactis albida Sars, 1846 
United Kingdom Exclusive Economic Zone for Arachnactis lloydii (Gosse, 1859) 

 Taxonomic remark

 for Cerianthula atlantica Carlgren, 1931

jun. homonym apparently full synonym of C. atlantica Van Beneden, 1924 [details]