Arachnactidae McMurrich, 1910 (original description)
Arachnactis albida Sars, 1846 (additional source)
Arachnactis bournei Fowler, 1897 accepted as Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Botruanthus benedeni (Torrey & Kleeberger, 1909) (additional source)
Calpanthula guinensis Van Beneden, 1897 (additional source)
Cerianthula mediterranea Beneden, 1897 (additional source)
Cerianthus lloydii Gosse, 1859 accepted as Synarachnactis lloydii (Gosse, 1859) (additional source)
Cerianthus membranaceus (Gmelin, 1791) (additional source)
Cerianthus sulcatus Kwietniewski, 1898 (additional source)
Dactylactis armata Van Beneden, 1897 (additional source)
Dactylactis digitata Van Beneden, 1897 (additional source)
Hensenanthula dactylifera Van Beneden, 1897 (additional source)
Ovactis aequatorialis Van Beneden, 1897 (additional source)
Ovactis bermudensis Van Beneden, 1897 (additional source)
Ovactis brasiliensis Van Beneden, 1897 (additional source)
Ovactis wilsoni Van Beneden, 1897 (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 oligopodus (Cerfontaine, 1909) accepted as Arachnanthus oligopodus (Cerfontaine, 1891) (additional source)
Solasteractis macropoda Van Beneden, 1897 (additional source)