Ernst Haeckel,
Adolf Giltsch
Periphylla, Peromedusae - Talchenquallen
Haeckel, Kunstformen der Natur, Lieferung 4, Tafel 38
Plate 38 out of the book "Kunstformen der Natur" by Ernst Haeckel . The lithograph is part of the forth issue, published in 1900.
