Arachnactis albida Sars, 1846 (additional source)
Arachnactis bournei Fowler, 1897 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Arachnactis lobiancoi Carlgren, 1912 accepted as Isarachnactis lobiancoi (Carlgren, 1912) (additional source)
Arachnanthus Carlgren, 1912 (original description)
Arachnanthus oligopodus (Cerfontaine, 1891) (additional source)
Arachnanthus sarsi Carlgren, 1912 (original description)
Botruanthus benedeni (Torrey & Kleeberger, 1909) (additional source)
Botrucnidifer Carlgren, 1912 (original description)
Botrucnidifer norvegicus Carlgren, 1912 (original description)
Calliactis (Sagartia) parasitica (Couch, 1842) accepted as Calliactis parasitica (Couch, 1842) (additional source)
Ceriantheopsis Carlgren, 1912 (original description)
Ceriantheopsis americana (Agassiz in Verrill, 1864) (additional source)
Cerianthus abyssorum Danielssen, 1890 accepted as Cerianthus vogti Danielssen, 1890 (additional source)
Cerianthus ambonensis Kwietniewski, 1898 accepted as Ceriantheomorphe ambonensis (Kwietniewski, 1898) (additional source)
Cerianthus benedeni Torrey & Kleeberger, 1909 accepted as Botruanthus benedeni (Torrey & Kleeberger, 1909) (status source)
Cerianthus borealis Danielssen, 1860 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthus danielsseni Levinsen accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthus membranaceus (Gmelin, 1791) (additional source)
Cerianthus roulei Carlgren, 1912 accepted as Synarachnactis roulei (Carlgren, 1912) (original description)
Cerianthus sulcatus Kwietniewski, 1898 (additional source)
Cerianthus taedus McMurrich, 1910 (additional source)
Cerianthus valdiviae Carlgren, 1912 (original description)
Cerianthus vogti Danielssen, 1890 (additional source)
Pachycerianthus aestuari (Torrey & Kleeburger, 1909) (additional source)
Pachycerianthus benedeni Roule, 1904 (additional source)
Pachycerianthus fimbriatus McMurrich, 1910 (additional source)
Pachycerianthus johnsoni (Torrey & Kleeburger, 1909) (additional source)
Pachycerianthus maua (Carlgren, 1900) (additional source)
Pachycerianthus monostichus McMurrich, 1910 (additional source)
Pachycerianthus solitarius (Rapp, 1829) (additional source)
Scytophorus antarcticus (Pfeffer, 1889) (additional source)

Danish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Danish Exclusive Economic Zone for Pachycerianthus multiplicatus Carlgren, 1912 
Danish Exclusive Economic Zone for Pachycerianthus multiplicatus Carlgren, 1912 
Danish Exclusive Economic Zone for Pachycerianthus multiplicatus Carlgren, 1912 
Faroe Islands for Arachnactis albida Sars, 1846 
Faroe Islands for Arachnactis albida Sars, 1846 
Fisheries Zone around Svalbard for Cerianthus lloydii Gosse, 1859 
German Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Greenlandic Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Greenlandic Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Norwegian Exclusive Economic Zone for Arachnanthus sarsi Carlgren, 1912 
Norwegian Exclusive Economic Zone for Botrucnidifer norvegicus Carlgren, 1912 
Norwegian Exclusive Economic Zone for Botrucnidifer norvegicus Carlgren, 1912 
Norwegian Exclusive Economic Zone for Botrucnidifer norvegicus Carlgren, 1912 
Norwegian Exclusive Economic Zone for Botrucnidifer norvegicus Carlgren, 1912 
Norwegian Exclusive Economic Zone for Botrucnidifer norvegicus Carlgren, 1912 
Norwegian Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Norwegian Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Norwegian Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Norwegian Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Norwegian Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Norwegian Exclusive Economic Zone for Cerianthus vogti Danielssen, 1890 
Norwegian Exclusive Economic Zone for Cerianthus vogti Danielssen, 1890 
Norwegian Exclusive Economic Zone for Pachycerianthus multiplicatus Carlgren, 1912 
Russian Exclusive economic Zone for Cerianthus lloydii Gosse, 1859 
Russian Exclusive economic Zone for Cerianthus lloydii Gosse, 1859 
Swedish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Swedish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Swedish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Swedish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Swedish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Swedish Exclusive Economic Zone for Cerianthus lloydii Gosse, 1859 
Trondheims Fjord for Arachnanthus sarsi Carlgren, 1912 
Trondheims Fjord for Botrucnidifer norvegicus Carlgren, 1912 
United States Exclusive Economic Zone for Ceriantheopsis americana (Agassiz in Verrill, 1864) 

 Original description

 for Botruanthus McMurrich, 1910

appeared in original description as Botryanthus McMurrich, 1910 spelling was amended by Carlgren (1912) [details]