Anthoathecata (basis of record)
Bougainvillia Lesson, 1830 (additional source)
Bougainvillia britannica (Forbes, 1841) (additional source)
Bougainvillia muscus (Allman, 1863) (additional source)
Bougainvilliidae Lütken, 1850 (basis of record)
Campanulariidae Johnston, 1836 (basis of record)
Capitata (basis of record)
Clytia Lamouroux, 1812 (additional source)
Clytia hemisphaerica (Linnaeus, 1767) (additional source)
Clytia paulensis (Vanhöffen, 1910) (additional source)
Conica accepted as Leptothecata (basis of record)
Corymorpha M. Sars, 1835 (additional source)
Corymorpha nutans M. Sars, 1835 (additional source)
Corymorphidae Allman, 1872 (basis of record)
Corynidae Johnston, 1836 (basis of record)
Ectopleura L. Agassiz, 1862 (additional source)
Filifera (basis of record)
Haleciidae Hincks, 1868 (basis of record)
Hydractinia Van Beneden, 1844 (additional source)
Hydractiniidae L. Agassiz, 1862 (basis of record)
Hydroidolina (basis of record)
Leptothecata (basis of record)
Leuckartiara Hartlaub, 1914 (additional source)
Leuckartiara octona (Fleming, 1823) (additional source)
Margelina Haeckel, 1879 (basis of record)
Obelia Péron & Lesueur, 1810 (additional source)
Obelia dichotoma (Linnaeus, 1758) (additional source)
Obelia geniculata (Linnaeus, 1758) (additional source)
Obelia longissima (Pallas, 1766) (additional source)
Pandeida (basis of record)
Pandeiidae Haeckel, 1879 accepted as Pandeidae Haeckel, 1879 (basis of record)
Proboscoida accepted as Leptothecata (basis of record)
Sertularia Linnaeus, 1758 (additional source)
Sertulariidae Lamouroux, 1812 (basis of record)
Tubulariida accepted as Tubulariidae Goldfuss, 1818 (basis of record)
Tubulariidae Goldfuss, 1818 (basis of record)