Aeginidae Gegenbaur, 1857 (basis of record)
Aglantha Haeckel, 1879 (additional source)
Aglaopheniidae Marktanner-Turneretscher, 1890 (basis of record)
Amphisbetia L. Agassiz, 1862 (additional source)
Anthoathecata (basis of record)
Blackfordiidae Bouillon, 1984 (basis of record)
Bougainvillia Lesson, 1830 (additional source)
Bougainvillia britannica (Forbes, 1841) (additional source)
Bougainvillia muscus (Allman, 1863) (additional source)
Bougainvillia principis (Steenstrup, 1850) (additional source)
Bougainvilliidae Lütken, 1850 (basis of record)
Campanulariidae Johnston, 1836 (basis of record)
Capitata (basis of record)
Cladonema Dujardin, 1843 (additional source)
Cladonema radiatum Dujardin, 1843 (additional source)
Cladonematidae Gegenbaur, 1857 (basis of record)
Clytia Lamouroux, 1812 (additional source)
Clytia gracilis (M. Sars, 1851) (additional source)
Clytia hemisphaerica (Linnaeus, 1767) (additional source)
Clytia paulensis (Vanhöffen, 1910) (additional source)
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)
Dipleurosomatidae Boeck, 1868 (basis of record)
Dipurena McCrady, 1859 accepted as Slabberia Forbes, 1846 (additional source)
Ectopleura L. Agassiz, 1862 (additional source)
Ectopleura dumortierii (Van Beneden, 1844) (additional source)
Eirene Eschscholtz, 1829 (additional source)
Eirenidae Haeckel, 1879 (basis of record)
Eucheilota McCrady, 1859 (additional source)
Eutima McCrady, 1859 (additional source)
Eutima gracilis (Forbes & Goodsir, 1853) (additional source)
Filifera (basis of record)
Geryoniidae Eschscholtz, 1829 (basis of record)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Gymnangium Hincks, 1874 (additional source)
Haleciidae Hincks, 1868 (basis of record)
Hybocodon L. Agassiz, 1860 (additional source)
Hydractinia Van Beneden, 1844 (additional source)
Hydractinia carnea (M. Sars, 1846) accepted as Podocoryna carnea M. Sars, 1846 (additional source)
Hydractiniidae L. Agassiz, 1862 (basis of record)
Hydroidolina (basis of record)
Lafoeidae Hincks, 1868 (basis of record)
Laodicea Lesson, 1843 (additional source)
Laodicea undulata (Forbes & Goodsir, 1853) (additional source)
Laodiceidae Agassiz, 1862 (basis of record)
Leptothecata (basis of record)
Leuckartiara Hartlaub, 1914 (additional source)
Leuckartiara octona (Fleming, 1823) (additional source)
Limnomedusae (basis of record)
Lovenella Hincks, 1868 (additional source)
Lovenella clausa (Lovén, 1836) (additional source)
Melicertidae Agassiz, 1862 (basis of record)
Mitrocomidae Haeckel, 1879 (basis of record)
Modeeria Forbes, 1848 (additional source)
Moerisiidae Poche, 1914 (basis of record)
Monotheca Nutting, 1900 (additional source)
Narcomedusae (basis of record)
Niobiidae Petersen, 1979 (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)
Oceania Péron & Lesueur, 1810 (additional source)
Orthopyxis L. Agassiz, 1862 (additional source)
Orthopyxis integra (MacGillivray, 1842) (additional source)
Pennariidae McCrady, 1859 (basis of record)
Petasidae Haeckel, 1879 (basis of record)
Phialella Browne, 1902 (additional source)
Phialellidae Russell, 1953 (basis of record)
Phialuciidae Kramp, 1955 (basis of record)
Porpita porpita (Linnaeus, 1758) (additional source)
Porpitidae Goldfuss, 1818 (basis of record)
Proboscidactyla Brandt, 1835 (additional source)
Proboscidactyla stellata (Forbes, 1846) (additional source)
Proboscidactylidae Hand & Hendrickson, 1950 (basis of record)
Protiaridae Haeckel, 1879 (basis of record)
Ptilocodiidae Coward, 1909 (basis of record)
Rathkea Brandt, 1837 (additional source)
Rathkea octopunctata (M. Sars, 1835) (additional source)
Rathkeidae Russell, 1953 (basis of record)
Rhopalonematidae Russell, 1953 (basis of record)
Sarsia Lesson, 1843 (additional source)
Sertularia Linnaeus, 1758 (additional source)
Sertulariidae Lamouroux, 1812 (basis of record)
Sphaerocorynidae Prévot, 1959 (basis of record)
Tiarannidae Russell, 1940 (basis of record)
Tiaropsidae Boero, Bouillon & Danovaro, 1987 (basis of record)
Trachylinae (basis of record)
Trachymedusae (basis of record)
Tubulariidae Goldfuss, 1818 (basis of record)
Turritopsis McCrady, 1857 (additional source)
Turritopsis nutricula McCrady, 1857 (additional source)
Velella Lamarck, 1801 (additional source)
Velella velella (Linnaeus, 1758) (additional source)
Zancleidae Russell, 1953 (basis of record)