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UNESCO-IOC Register of Marine Organisms (URMO) - Moerisiida …
Medusozoa – Variety of Life
WoRMS - World Register of Marine Species - Capitata
Metazoa – Page 6 – Variety of Life
Anthomedusae - Alchetron, The Free Social Encyclopedia
Anthoathecata - Turkcewiki.org
Taxonomy of the animals (Hutchins et al., 2003) - Wikipedia
Molluscabase
Hydra (geslacht)
Süßwasserpolypen