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Haeckel Discomedusae . center Linantha lunulata Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel Haeckel adult medusa from below Kunstformen der Natur plate Discomedusae see mpizkoeln mpg de html here mpizkoeln mpg de html here and