Acryptolaria abies (Allman, 1877) (additional source)
Acryptolaria conferta (Allman, 1877) (additional source)
Acryptolaria elegans (Allman, 1877) (additional source)
Acryptolaria longitheca (Allman, 1877) (additional source)
Acryptolaria pulchella (Allman, 1888) (additional source)
Acryptolaria rectangularis (Jarvis, 1922) (additional source)
Aglaophenia apocarpa Allman, 1877 accepted as Aglaophenia lophocarpa Allman, 1877 (basis of record)
Aglaophenia bicornuta Nutting, 1900 (additional source)
Aglaophenia constricta Allman, 1877 (additional source)
Aglaophenia dichotoma Kirchenpauer, 1872 (basis of record)
Aglaophenia dubia Nutting, 1900 (additional source)
Aglaophenia latecarinata Allman, 1877 (additional source)
Aglaophenia rhynchocarpa Allman, 1877 (additional source)
Aglaophenia tridentata Versluys, 1899 accepted as Lytocarpia tridentata (Versluys, 1899) (additional source)
Aglaophenia trifida Agassiz, 1862 (additional source)
Aglaophenopsis hirsuta Fewkes, 1881 (basis of record)
Antennella quadriaurita Ritchie, 1909 (additional source)
Antennella secundaria (Gmelin, 1791) (additional source)
Bimeria humilis Allman, 1877 accepted as Bimeria vestita Wright, 1859 (additional source)
Bougainvillia carolinensis (McCrady, 1859) (additional source)
Bougainvillia inaequalis Fraser, 1944 (additional source)
Bougainvillia rugosa Clarke, 1882 (additional source)
Bougainvillia superciliaris (L. Agassiz, 1849) (additional source)
Campanularia brevicaulis Nutting, 1915 (additional source)
Campanularia macroscypha Allman, 1877 (additional source)
Cladocarpoides yucatanicus Bogle, 1984 (additional source)
Cladocarpus carinatus Nutting, 1900 (additional source)
Cladocarpus delicatus Bogle, 1990 (additional source)
Cladocarpus dolichotheca Allman, 1877 (additional source)
Cladocarpus flexilis Verrill, 1885 (additional source)
Cladocarpus flexuosus Nutting, 1900 (additional source)
Cladocarpus longipinna Fraser, 1945 (additional source)
Cladocarpus obliquus Nutting, 1900 (additional source)
Cladocarpus paradiseus Allman, 1877 (additional source)
Cladocarpus sigma (Allman, 1877) (additional source)
Cladocarpus tenuis Clarke, 1879 (additional source)
Cladocarpus ventricosus Allman, 1877 (additional source)
Cladonema mayeri Perkins, 1906 accepted as Cladonema radiatum Dujardin, 1843 (additional source)
Clytia coronata (Clarke, 1879) accepted as Clytia hemisphaerica (Linnaeus, 1767) (additional source)
Clytia gracilis (M. Sars, 1851) (additional source)
Clytia hemisphaerica (Linnaeus, 1767) (additional source)
Clytia hummelincki (Leloup, 1935) accepted as Clytia brevithecata (Thornely, 1900) (additional source)
Clytia kincaidi (Nutting, 1899) (additional source)
Clytia linearis (Thorneley, 1900) (additional source)
Clytia longicyatha (Allman, 1877) accepted as Obelia longicyatha Allman, 1877 accepted as Obelia bidentata Clark, 1875 (basis of record)
Clytia macrotheca (Perkins, 1908) (additional source)
Clytia minuta (Nutting, 1901) accepted as Clytia hemisphaerica (Linnaeus, 1767) (additional source)
Clytia noliformis (McCrady, 1859) sensu Calder, 1991 (additional source)
Clytia paulensis (Vanhöffen, 1910) (additional source)
Clytia raridentata (Alder in Hincks, 1861) accepted as Clytia hemisphaerica (Linnaeus, 1767) (additional source)
Cnidoscyphus marginatus (Allman, 1877) accepted as Thyroscyphus marginatus (Allman, 1877) (additional source)
Cordylophora caspia (Pallas, 1771) (additional source)
Corydendrium parasiticum (Linnaeus, 1767) (additional source)
Coryne eximia Allman, 1859 (additional source)
Coryne sargassicola Calder, 1988 (additional source)
Crypthelia floridana Cairns, 1986 (additional source)
Crypthelia peircei Pourtalès, 1867 (additional source)
Cryptolaria pectinata (Allman, 1888) (additional source)
Cuspidella costata Hincks, 1868 accepted as Laodicea undulata (Forbes & Goodsir, 1853) (additional source)
Cuspidella humilis Hincks, 1866 (additional source)
Diphasia digitalis (Busk, 1852) (additional source)
Diplopteroides longipinna (Nutting, 1900) (additional source)
Diplopteroides quadricornis (Nutting, 1900) (additional source)
Distichopora contorta Pourtalès, 1878 (additional source)
Distichopora foliacea Pourtalès, 1868 (additional source)
Distichopora sulcata Pourtalès, 1867 (additional source)
Distichopora uniserialis Cairns, 1986 (additional source)
Dynamena crisioides Lamouroux, 1824 (basis of record)
Dynamena dalmasi (Versluys, 1899) (additional source)
Dynamena disticha (Bosc, 1802) (additional source)
Dynamena quadridentata (Ellis & Solander, 1786) (additional source)
Dynamena tropica Stechow, 1926 (additional source)
Ectopleura crocea (Agassiz, 1862) (additional source)
Ectopleura dumortierii (Van Beneden, 1844) (additional source)
Ectopleura grandis Fraser, 1944 (additional source)
Errina cochleata Pourtalès, 1867 (additional source)
Eucuspidella pedunculata (Allman, 1877) accepted as Campanulina pedunculata (Allman, 1877) (additional source)
Eudendrium album Nutting, 1898 (additional source)
Eudendrium attenuatum Allman, 1877 (additional source)
Eudendrium carneum Clarke, 1882 (additional source)
Eudendrium distichum Clarke, 1879 (additional source)
Eudendrium exiguum Allman, 1877 (additional source)
Eudendrium eximium Allman, 1877 (basis of record)
Eudendrium fruticosum Allman, 1877 (basis of record)
Eudendrium gracile Allman, 1877 (additional source)
Eudendrium laxum Allman, 1877 (additional source)
Eudendrium ramosum (Linnaeus, 1758) (additional source)
Eudendrium speciosum Fraser, 1945 (additional source)
Eudendrium tenellum Allman, 1877 (additional source)
Eudendrium tenue Agassiz, 1865 accepted as Eudendrium capillare Alder, 1856 (additional source)
Filellum serpens (Hassall, 1848) (additional source)
Filellum serratum (Clarke, 1879) (additional source)
Garveia franciscana (Torrey, 1902) accepted as Calyptospadix cerulea Clarke, 1882 (additional source)
Gymnangium hians var. balei (Marktanner-Turneretscher, 1890) accepted as Gymnangium balei (Marktanner-Turneretscher, 1890) accepted as Gymnangium hians (Busk, 1852) (basis of record)
Gymnangium sinuosum (Fraser, 1925) (basis of record)
Gymnangium speciosum (Allman, 1877) (additional source)
Halecium bermudense Congdon, 1907 (additional source)
Halecium capillaris (Pourtalès, 1867) (additional source)
Halecium filicula Allman, 1877 (additional source)
Halecium halecinum (Linnaeus, 1758) (additional source)

 Lectotype

 for Obelia alternata Fraser, 1938

Ecuador, Galápagos Islands, Charles Island, Post Office Bay, 01°14’37”S, 90°28’08”W, 15 fm (27 m), rock. [details]