Actigia vanbenedeni (Hincks, 1869) accepted as Coryne vanbenedeni Hincks, 1868 (source of synonymy)
Amalthaea sarsii (Steenstup, 1854) accepted as Corymorpha sarsii Steenstrup, 1855 (source of synonymy)
Aselomaris michaeli Berrill, 1948 accepted as Pachycordyle michaeli (Berrill, 1948) (source of synonymy)
Campalecium cirratum (Haeckel, 1879) accepted as Mitrocomium cirratum Haeckel, 1879 accepted as Lovenella cirrata (Haeckel, 1879) (source of synonymy)
Campanopsis adriaticus (Hadzi, 1915) accepted as Eutima gracilis (Forbes & Goodsir, 1853) (source of synonymy)
Clavopsella navis (Millard, 1959) accepted as Pachycordyle michaeli (Berrill, 1948) (source of synonymy)
Clytia pentata (Mayer, 1900) accepted as Pseudoclytia pentata Mayer, 1900 accepted as Clytia folleata (McCrady, 1859) (source of synonymy)
Cordylophora Allman, 1844 (additional source)
Corydendrium Van Beneden, 1844 (additional source)
Coryne clavata (Keferstein, 1862) accepted as Sarsia clavata Keferstein, 1862 accepted as Stauridiosarsia gemmifera (Forbes, 1848) (source of synonymy)
Cuspidella costata Hincks, 1868 accepted as Laodicea undulata (Forbes & Goodsir, 1853) (source of synonymy)
Cuspidella mertensi (Brandt, 1834) accepted as Staurophora mertensii Brandt, 1835 accepted as Staurostoma mertensii (Brandt, 1835) (source of synonymy)
Cytaeis propagulata (Bavestrello, 1987) accepted as Perarella propagulata Bavestrello, 1987 (basis of record)
Cytaeis schneideri (Motz-Kossowska, 1905) accepted as Perarella schneideri (Motz-Kossowska, 1905) (basis of record)
Dipurena gemmifera (Forbes, 1848) accepted as Stauridiosarsia gemmifera (Forbes, 1848) (basis of record)
Ectopleura crocea (Agassiz, 1862) (additional source)
Ectopleura petalina (Margulis, 1989) accepted as Corymorpha petalina (Margulis, 1989) accepted as Rhabdoon singulare Keferstein & Ehlers, 1861 (source of synonymy)
Eucodoniidae Schuchert, 1996 (basis of record)
Eudendrium motzkossowskae Picard, 1952 accepted as Eudendrium simplex Pieper, 1884 (source of synonymy)
Eudendrium simplex Pieper, 1884 (basis of record)
Guillea canyonicolae Bouillon et al., 2000 accepted as Guillea canyonincolae Bouillon et al., 2000 (basis of record)
Halanthus adriaticus Hadži, 1914 accepted as Eutima gracilis (Forbes & Goodsir, 1853) (source of synonymy)
Kirchenpaueria echinulata (Lamarck, 1816) accepted as Kirchenpaueria pinnata (Linnaeus, 1758) (source of synonymy)
Lafoea grandis Hincks, 1874 (source of synonymy)
Lafoea pocillum Hincks, 1868 accepted as Lafoea dumosa (Fleming, 1820) (source of synonymy)
Merona nematophorum (Antsulevich, 1986) accepted as Similomerona nematophora (Antsulevich, 1986) (source of synonymy)
Monotheca posidoniae Picard, 1952 (basis of record)
Ostroumovia inkermanica (Paltschikowa-Ostroumova, 1925) accepted as Moerisia inkermanica Paltschikowa-Ostroumowa, 1925 (source of synonymy)
Pachycordyle michaeli (Berrill, 1948) (basis of record)
Pachycordyle pusilla (Motz-Kossowska, 1905) (basis of record)
Phialella chiquitita (Millard, 1957) (basis of record)
Phialidium Leuckart, 1856 accepted as Clytia Lamouroux, 1812 (additional source)
Phialidium pentata (Mayer, 1900) accepted as Pseudoclytia pentata Mayer, 1900 accepted as Clytia folleata (McCrady, 1859) (additional source)
Plumularia obliqua (Johnston, 1847) accepted as Monotheca obliqua (Johnston, 1847) (source of synonymy)
Rhizorhagium arenosum (Alder, 1862) (basis of record)
Salacia dubia (Billard, 1922) accepted as Salacia desmoides (Torrey, 1902) (source of synonymy)
Sertularia inflata (Versluys, 1899) accepted as Sertularia marginata (Kirchenpauer, 1864) accepted as Tridentata marginata (Kirchenpauer, 1864) (source of synonymy)
Solmissus incisa (Fewkes, 1886) (additional source)
Staurostoma mertensi (Brandt, 1835) accepted as Staurostoma mertensii (Brandt, 1835) (source of synonymy)
Stomotoca georginae (Hadzi, 1913) (additional source)
Stomotoca georginae (Hadzi, 1913) (source of synonymy)
Stylactis fuciola (Sars, 1857) accepted as Stylactis fucicola (M. Sars, 1857) (source of synonymy)
Thuiaria lichenastrum (Linnaeus, 1758) accepted as Thuiaria articulata (Pallas, 1766) (source of synonymy)
Tregoubovia Picard, 1958 (additional source)
Tregoubovia penicillatum (Jarms, 1987) accepted as Thecocodium penicillatum Jarms, 1987 (basis of record)
Tubularia mesembryanthemum Allman, 1872 accepted as Ectopleura crocea (Agassiz, 1862) (source of synonymy)

Atlantic Ocean for Boreohydra simplex Westblad, 1937 
Atlantic Ocean for Cladocarpus sinuosus Vervoort, 1966 
Atlantic Ocean for Cladocarpus tenuis Clarke, 1879 
Atlantic Ocean for Leuckartiara brownei Larson & Harbison, 1990 
Atlantic Ocean for Sertularella cylindritheca (Allman, 1888) 
Atlantic Ocean for Staurodiscus kellneri (Mayer, 1910) 
Atlantic Ocean for Stylactis inermis Allman, 1872 
Gibraltar for Cryptolaria pectinata (Allman, 1888) 
Mediterranean Sea for Acauloides ammisatum Bouillon, 1965 
Mediterranean Sea for Aglaophenia parvula Bale, 1882 
Mediterranean Sea for Aglaura hemistoma Péron & Lesueur, 1810 
Mediterranean Sea for Amphinema turrida (Mayer, 1900) 
Mediterranean Sea for Amphogona pusilla Hartlaub, 1909 
Mediterranean Sea for Arctapodema ampla (Vanhöffen, 1902) 
Mediterranean Sea for Bedotella armata (Pictet & Bedot, 1900) 
Mediterranean Sea for Boreohydra simplex Westblad, 1937  (inaccurate)
Mediterranean Sea for Bougainvillia muscus (Allman, 1863) 
Mediterranean Sea for Bythotiara murrayi Günther, 1903 
Mediterranean Sea for Candelabrum cocksii (Cocks, 1854) 
Mediterranean Sea for Cladocarpus multiseptatus (Bale, 1915) 
Mediterranean Sea for Cladocarpus sinuosus Vervoort, 1966 
Mediterranean Sea for Cladocarpus tenuis Clarke, 1879 
Mediterranean Sea for Cladocoryne floccosa Rotch, 1871 
Mediterranean Sea for Cladonema radiatum Dujardin, 1843 
Mediterranean Sea for Clytia hummelincki (Leloup, 1935) 
Mediterranean Sea for Clytia linearis (Thorneley, 1900) 
Mediterranean Sea for Clytia maccradyi (Brooks, 1888) 
Mediterranean Sea for Clytia macrogonia Bouillon, 1984 
Mediterranean Sea for Clytia pentata (Mayer, 1900) 
Mediterranean Sea for Clytia viridicans (Leuckart, 1956) 
Mediterranean Sea for Cordylophora caspia (Pallas, 1771) 
Mediterranean Sea for Corydendrium parasiticum (Linnaeus, 1767) 
Mediterranean Sea for Corymorpha forbesii (Mayer, 1894) 
Mediterranean Sea for Cryptolaria pectinata (Allman, 1888) 
Mediterranean Sea for Cunina globosa Eschscholtz, 1829 
Mediterranean Sea for Cunina octonaria McCrady, 1859 
Mediterranean Sea for Dipurena halterata (Forbes, 1846) 
Mediterranean Sea for Dipurena ophiogaster Haeckel, 1879 
Mediterranean Sea for Dynamena disticha (Bosc, 1802) 
Mediterranean Sea for Ectopleura dumortierii (Van Beneden, 1844) 
Mediterranean Sea for Ectopleura sacculifera Kramp, 1957 
Mediterranean Sea for Eudendrium carneum Clarke, 1882 
Mediterranean Sea for Eudendrium ramosum (Linnaeus, 1758) 
Mediterranean Sea for Eutima gegenbauri (Haeckel, 1864) 
Mediterranean Sea for Eutima mira McCrady, 1859 
Mediterranean Sea for Garveia franciscana (Torrey, 1902) 
Mediterranean Sea for Gastroblasta raffaelei Lang, 1886 
Mediterranean Sea for Geryonia proboscidalis (Forsskål, 1775) 
Mediterranean Sea for Gonionemus vertens A. Agassiz, 1862 
Mediterranean Sea for Guillea canyonicolae Bouillon et al., 2000 
Mediterranean Sea for Halecium beanii (Johnston, 1838) 
Mediterranean Sea for Halecium delicatulum Coughtrey, 1876 
Mediterranean Sea for Halecium liouvillei Billard, 1934 
Mediterranean Sea for Haliscera conica Vanhöffen, 1902 
Mediterranean Sea for Halitiara inflexa Bouillon, 1980  (doubtful)
Mediterranean Sea for Halopteris diaphana (Heller, 1868) 
Mediterranean Sea for Hydractinia hooperii (Sigerfoos, 1899)  (doubtful)
Mediterranean Sea for Hydrallmania falcata (Linnaeus, 1758) 
Mediterranean Sea for Hydrodendron mirabile (Hincks, 1866) 
Mediterranean Sea for Kirchenpaueria bonnevieae (Billard, 1906) 
Mediterranean Sea for Laomedea pseudodichotoma Vervoort, 1959 
Mediterranean Sea for Leuckartiara brownei Larson & Harbison, 1990 
Mediterranean Sea for Leuckartiara octona (Fleming, 1823) 
Mediterranean Sea for Liriope tetraphylla (Chamisso & Eysenhardt, 1821) 
Mediterranean Sea for Macrorhynchia philippina Kirchenpauer, 1872 
Mediterranean Sea for Merona cornucopiae (Norman, 1864) 
Mediterranean Sea for Moerisia carine Bouillon, 1978 
Mediterranean Sea for Nemertesia falcicula (Ramil & Vervoort, 1992) 
Mediterranean Sea for Nemertesia norvegica (Sars, 1873) 
Mediterranean Sea for Niobia dendrotentaculata Mayer, 1900 
Mediterranean Sea for Oceania armata Kölliker, 1853 
Mediterranean Sea for Octotiara violacea Kramp, 1959 
Mediterranean Sea for Orthopyxis crenata (Hartlaub, 1901) 
Mediterranean Sea for Pegantha triloba Haeckel, 1879 
Mediterranean Sea for Pennaria disticha Goldfuss, 1820 
Mediterranean Sea for Persa incolorata McCrady, 1859 
Mediterranean Sea for Porpita porpita (Linnaeus, 1758) 
Mediterranean Sea for Rhopalonema funerarium Vanhöffen, 1902 
Mediterranean Sea for Rhopalonema velatum Gegenbaur, 1857 
Mediterranean Sea for Salacia desmoides (Torrey, 1902) 
Mediterranean Sea for Sarsia eximia (Allman, 1859) 
Mediterranean Sea for Sertularia turbinata (Lamouroux, 1816) 
Mediterranean Sea for Sminthea eurygaster Gegenbaur, 1857 
Mediterranean Sea for Solmaris corona (Keferstein & Ehlers, 1861) 
Mediterranean Sea for Sphaerocoryne bedoti Pictet, 1893 
Mediterranean Sea for Staurodiscus kellneri (Mayer, 1910) 
Mediterranean Sea for Staurodiscus tetrastaurus Haeckel, 1879 
Mediterranean Sea for Stegopoma bathyale Vervoort, 1966 
Mediterranean Sea for Streptocaulus pectiniferus (Allman, 1883) 
Mediterranean Sea for Tetrorchis erythrogaster Bigelow, 1909 
Mediterranean Sea for Thuiaria thuja (Linnaeus, 1758)  (doubtful)
Mediterranean Sea for Trichydra pudica Wright, 1857 
Mediterranean Sea for Tubularia ceratogyne Pérez, 1920 
Mediterranean Sea for Tubularia crocea (Agassiz, 1862) 
Mediterranean Sea for Turritopsis dohrnii (Weismann, 1883) 
Mediterranean Sea for Velella velella (Linnaeus, 1758) 
Mediterranean Sea for Zanclea giancarloi Boero, Bouillon & Gravili, 2000 
Mediterranean Sea for Zygophylax biarmata Billard, 1905 
North Atlantic for Tima flavilabris Eschscholtz, 1829 
North East Atlantic for Aselomaris arenosa (Alder, 1862) 

 classification

 for Sertularia mediterranea (Marktanner-Turneretscher, 1890)

Sertularia mediterranea is considered to be a synonym of Sertularia perpusilla by Picard. The original description ... [details]

 Distribution

 for Aequorea pensilis (Haeckel, 1879)

Mediterranean record is doubtful [details]

 Distribution

 for Eudendrium arbusculum Wright, 1859

The records from the Mediterranean are doubtful [details]

 Distribution

 for Rhizorhagium formosum (Fewkes, 1889)

A Mediterranean record could not be located [details]

 Distribution

 for Tamarisca tamarisca (Linnaeus, 1758)

Heller 1868 recorded the nominal species Dynamena tamarisca (now Tamarisca tamarisca (L. 1758)) from the ... [details]

 identification

 for Clytia macrogonia Bouillon, 1984

This species may be Clytia linearis [details]

 identification

 for Eudendrium ramosum (Linnaeus, 1758)

Eudendrium ramosum van Beneden, 1844 was an incorrect identification that has been perpetuated by many following ... [details]

 Status

 for Cytaeis pusilla Gegenbaur, 1857

Doubtful species, the Cytaeis from the Mediterranean are not referable to any species and should be treated as ... [details]

 Taxonomy

 for Coryne caespes Allman, 1871

Undeterminable species [details]

 Taxonomy

 for Dinema slabberi Van Beneden, 1867

Unrecognisable species. Hartlaub (1907) thought that Haeckel (1879) misidentified a corynid medusa from the ... [details]

 Taxonomy

 for Eudendrium tenellum Allman, 1877

Doubtful species [details]

 Taxonomy

 for Halecium minimum Schneider, 1898

Doubtful species due to insufficient description [details]

 Taxonomy

 for Laodicea chapmani Günther, 1903

Doubtful species [details]

 Taxonomy

 for Laodicea neptuna Mayer, 1900

Doubtful species [details]

 Taxonomy

 for Tubiclava fruticosa Allman, 1872

Doubtful species [details]

 Taxonomy

 for Tubiclava lucerna Allman, 1863

Doubtful species, possibly Turritopsis [details]

 Validity

 for Calycella gracilis Hartlaub, 1897

Indeterminable species [details]

 Validity

 for Dicodonium adriaticum Graeffe, 1884

Indetermined species [details]

 Validity

 for Dicodonium ocellatum (Busch, 1851)

Indetermined species [details]

 Validity

 for Hydranthea aloysii (Zoja, 1893)

Probably a synonym of Hydranthea margarica [details]

 Validity

 for Hydranthea diaphana (Hadzi, 1914)

Probably a synonym of Hydranthea margarica [details]

 Validity

 for Sarsia pattersoni Haddon, 1886

Indetermined species [details]

 Validity

 for Tiaropsidium vilaevelebiti (Hadzi, 1916)

Probably a synonym of Tiaropsidium mediterraneum [details]