Atolla Haeckel, 1880 (additional source)
Aurelia limbata Brandt, 1835 (additional source)
Coronamedusae (additional source)
Coronatae (additional source)
Daktyliophorae accepted as Dactyliophorae (additional source)
Phacellophora camtschatica Brandt, 1835 (additional source)
Phacellophoridae Straehler-Pohl, Widmer & Morandini, 2011 (additional source)
Rhizostomatidae Cuvier, 1800 (additional source)
Rhopilema Haeckel, 1880 (additional source)
Rhopilema verrilli (Fewkes, 1887) (additional source)

Adriatic Sea for Pelagia noctiluca (Forsskål, 1775) 
Aegean Sea for Pelagia noctiluca (Forsskål, 1775) 
Alaskan part of the Bering Sea for Aurelia limbata Brandt, 1835 
Alaskan part of the Gulf of Alaska for Aurelia limbata Brandt, 1835 
Alaskan part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Alboran Sea for Pelagia noctiluca (Forsskål, 1775) 
Azores Canaries Madeira for Pelagia noctiluca (Forsskål, 1775) 
Canadian part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Celtic Seas for Pelagia noctiluca (Forsskål, 1775) 
High seas of the Bering Sea for Aurelia limbata Brandt, 1835 
High seas of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Ionian Sea for Pelagia noctiluca (Forsskål, 1775) 
Japanese part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Japanese part of the Philippine Sea for Aurelia limbata Brandt, 1835 
Japanese part of the Sea of Japan for Aurelia limbata Brandt, 1835 
Japanese part of the Sea of Okhotsk for Aurelia limbata Brandt, 1835 
Levantine Sea for Pelagia noctiluca (Forsskål, 1775) 
Mexican part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
North Korean part of the Japan Sea for Aurelia limbata Brandt, 1835 
North Sea for Pelagia noctiluca (Forsskål, 1775) 
Russia-Japan conflict zone part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Russia-Japan conflict zone part of the Sea of Okhotsk for Aurelia limbata Brandt, 1835 
Russian part of the Bering Sea for Aurelia limbata Brandt, 1835 
Russian part of the Japan Sea for Aurelia limbata Brandt, 1835 
Russian part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Russian part of the Sea of Okhotsk for Aurelia limbata Brandt, 1835 
Saharan Upwelling for Pelagia noctiluca (Forsskål, 1775) 
South European Atlantic Shelf for Pelagia noctiluca (Forsskål, 1775) 
South Korean part of the Japan Sea for Aurelia limbata Brandt, 1835 
Tunisian Plateau/Gulf of Sidra for Pelagia noctiluca (Forsskål, 1775) 
United States part of the North Pacific Ocean for Aurelia limbata Brandt, 1835 
Western Mediterranean for Pelagia noctiluca (Forsskål, 1775) 

 Additional information

 for Catostylus ouwensi Moestafa & McConnaughey, 1966

This species was only seen by the authors who described it based on 5 specimens; no further mention in the literature [details]

 Distribution

 for Stephanoscyphus bianconis Thiel, 1936

Only known from type locality [details]

 Nomenclature

 for Cassiopea vanderhorsti Stiasny, 1924

Doubtful species or just a variety of C. xamachana [details]

 Nomenclature

 for Catostylus cruciatus (Lesson, 1830)

The species was considered conspecific with Lychnorhiza lucerna (Mianzan & Cornelius, 1999; Silveira & Cornelius, ... [details]

 Nomenclature

 for Catostylus tripterus (Haeckel, 1880)

Haeckel (1880) mentioned that the species resembles a young Rhizostoma. Vanhöffen (1902) wondered to which genus ... [details]

 Nomenclature

 for Mastigias albipunctata Stiasny, 1920

possibly similar to Mastigias papua [details]

 Nomenclature

 for Mastigias andersoni Stiasny, 1926

possibly similar to Mastigias papua [details]

 Nomenclature

 for Mastigias ocellatus (Modeer, 1791)

possibly similar to Mastigias papua [details]

 Nomenclature

 for Mastigias pantherina Haeckel, 1880

possibly similar to Mastigias papua [details]

 Nomenclature

 for Mastigias roseus (Reynaud, 1830)

doubtful species [details]

 Nomenclature

 for Pelagia cyanella Péron & Lesueur, 1810

Species requiring further studies, doubtful. [details]

 Nomenclature

 for Pelagia discoidea Eschscholtz, 1829

Species requiring further studies, doubtful. [details]

 Nomenclature

 for Pelagia flaveola Eschscholtz, 1829

Species requiring further studies, doubtful. [details]

 Nomenclature

 for Pelagia panopyra Péron & Lesueur, 1810

Species requiring further studies, doubtful. [details]

 Nomenclature

 for Polyrhiza vesiculosa (Ehrenberg, 1837)

Polyrhiza is considered a doubtful genus because only Ehrenberg and Haeckel observed specimens; description by ... [details]