Aequorea Péron & Lesueur, 1810 (basis of record)
Aequorea conica Browne, 1905 (basis of record)
Aequorea macrodactyla (Brandt, 1835) (basis of record)
Aglaophenia Lamouroux, 1812 (basis of record)
Aglaophenia pluma (Linnaeus, 1758) (basis of record)
Amphisbetia L. Agassiz, 1862 (basis of record)
Amphisbetia operculata (Linnaeus, 1758) (basis of record)
Antennella Allman, 1877 (basis of record)
Antennella secundaria (Gmelin, 1791) (basis of record)
Arctapodema Dall, 1907 (basis of record)
Bimeria Wright, 1859 (basis of record)
Bimeria vestita Wright, 1859 (basis of record)
Blackfordia Mayer, 1910 (basis of record)
Blackfordia virginica Mayer, 1910 (basis of record)
Bougainvillia Lesson, 1830 (basis of record)
Bougainvillia macloviana Lesson, 1830 (basis of record)
Bougainvillia muscus (Allman, 1863) (basis of record)
Bougainvillia rugosa Clarke, 1882 (basis of record)
Campanularia Lamarck, 1816 (basis of record)
Cladonema Dujardin, 1843 (basis of record)
Cladonema radiatum Dujardin, 1843 (basis of record)
Clava Gmelin, 1791 (basis of record)
Clava multicornis (Forsskål, 1775) (basis of record)
Clavopsella Stechow, 1919 accepted as Pachycordyle Weismann, 1883 (basis of record)
Clavopsella navis (Millard, 1959) accepted as Pachycordyle michaeli (Berrill, 1948) (basis of record)
Clytia Lamouroux, 1812 (basis of record)
Clytia hemisphaerica (Linnaeus, 1767) (basis of record)
Clytia linearis (Thorneley, 1900) (basis of record)
Cordylophora Allman, 1844 (basis of record)
Cordylophora caspia (Pallas, 1771) (basis of record)
Corymorpha M. Sars, 1835 (basis of record)
Corymorpha annulata (Kramp, 1928) (basis of record)
Corymorpha bigelowi (Maas, 1905) (basis of record)
Coryne Gaertner, 1774 (basis of record)
Diphasia Agassiz, 1862 (basis of record)
Dynamena Lamouroux, 1812 (basis of record)
Dynamena cornicina McCrady, 1859 accepted as Dynamena disticha (Bosc, 1802) (basis of record)
Dynamena disticha (Bosc, 1802) (basis of record)
Dynamena quadridentata (Ellis & Solander, 1786) (basis of record)
Ectopleura L. Agassiz, 1862 (basis of record)
Ectopleura crocea (Agassiz, 1862) (basis of record)
Eucheilota McCrady, 1859 (basis of record)
Eucheilota paradoxica Mayer, 1900 (basis of record)
Eucheilota ventricularis McCrady, 1859 (basis of record)
Eudendrium Ehrenberg, 1834 (basis of record)
Eudendrium capillare Alder, 1856 (basis of record)
Eudendrium carneum Clarke, 1882 (basis of record)
Eudendrium merulum Watson, 1985 (basis of record)
Eudendrium vaginatum Allman, 1863 (basis of record)
Euphysora Maas, 1905 accepted as Corymorpha M. Sars, 1835 (basis of record)
Euphysora bigelowi Maas, 1905 accepted as Corymorpha bigelowi (Maas, 1905) (basis of record)
Eutima McCrady, 1859 (basis of record)
Fabienna Schuchert, 1996 (basis of record)
Filellum Hincks, 1868 (basis of record)
Filellum serratum (Clarke, 1879) (basis of record)
Garveia Wright, 1859 (basis of record)
Garveia franciscana (Torrey, 1902) accepted as Calyptospadix cerulea Clarke, 1882 (basis of record)
Gonionemus A. Agassiz, 1862 (basis of record)
Gonionemus vertens A. Agassiz, 1862 (basis of record)
Gonothyraea Allman, 1864 (basis of record)
Gonothyraea loveni (Allman, 1859) (basis of record)
Halecium Oken, 1815 (basis of record)
Halecium delicatulum Coughtrey, 1876 (basis of record)
Haliscera Vanhöffen, 1902 (basis of record)
Haliscera bigelowi Kramp, 1947 (basis of record)
Halitiara Fewkes, 1882 (basis of record)
Halopteris Allman, 1877 (basis of record)
Halopteris alternata (Nutting, 1900) (basis of record)
Hebella Allman, 1888 (basis of record)
Hebella scandens (Bale, 1888) (basis of record)
Hydractinia Van Beneden, 1844 (basis of record)
Hydrodendron Hincks, 1874 (basis of record)
Hydrodendron mirabile (Hincks, 1866) (basis of record)
Kantiella Bouillon, 1978 (basis of record)
Kantiella enigmatica Bouillon, 1978 (basis of record)
Kirchenpaueria Jickeli, 1883 (basis of record)
Kirchenpaueria halecioides (Alder, 1859) (basis of record)
Laodicea Lesson, 1843 (basis of record)
Laomedea Lamouroux, 1812 (basis of record)
Laomedea calceolifera (Hincks, 1871) (basis of record)
Laomedea flexuosa Alder, 1857 (basis of record)
Lovenella Hincks, 1868 (basis of record)
Macrorhynchia Kirchenpauer, 1872 (basis of record)
Macrorhynchia philippina Kirchenpauer, 1872 (basis of record)
Maeotias Ostroumoff, 1896 (basis of record)
Mitrocomium Haeckel, 1879 accepted as Lovenella Hincks, 1868 (basis of record)
Moerisia Boulenger, 1908 (basis of record)
Moerisia inkermanica Paltschikowa-Ostroumowa, 1925 (basis of record)
Moerisia lyonsi Boulenger, 1908 (basis of record)
Nemopsis Agassiz, 1849 (basis of record)
Nemopsis bachei L. Agassiz, 1849 (basis of record)
Nubiella Bouillon, 1980 (basis of record)
Nubiella mitra Bouillon, 1980 (basis of record)
Obelia Péron & Lesueur, 1810 (basis of record)
Obelia bidentata Clark, 1875 (basis of record)
Obelia dichotoma (Linnaeus, 1758) (basis of record)
Obelia geniculata (Linnaeus, 1758) (basis of record)
Obelia longissima (Pallas, 1766) (basis of record)
Octotiara Kramp, 1953 (basis of record)
Olindias Müller, 1861 (basis of record)