Image: haeckel discomedusae 18

Discomedusae:
(center): Linantha lunulata (Haeckel) = Linantha lunulata Haeckel, 1880, adult medusa from above
(right): Linantha lunulata (Haeckel) = Linantha lunulata Haeckel, 1880, adult medusa from the side
(top left): Palephyra primigenia (Haeckel) = Palephyra antiqua Haeckel, 1880, half-grown medusa from the side, swimming
(left): Palephyra primigenia (Haeckel) = Palephyra antiqua Haeckel, 1880, half-grown medusa from the side, descending
(bottom center): Palephyra primigenia (Haeckel) = Palephyra antiqua Haeckel, 1880, half-grown medusa from the side, resting on bottom
(top right): Zonephyra zonaria (Haeckel) = Palephyra pelagica (Haeckel, 1880), young medusa from the side
(top center): Strobila monodisca (Haeckel) = Coronatae, polyp budding off medusa from the side
(bottom left): Nauphanta Challengeri (Haeckel) = Nausithoe challengeri (Haeckel, 1880), adult medusa from above
(bottom right): Atolla Wyvillei (Haeckel) = Atolla wyvillei Haeckel, 1880, adult medusa from below
- from the book sets: Art Forms in Nature (Kunstformen der Natur) - by Ernst Haeckel (1899-1904).

- من صور كتب: النماذج الفنية في الطبيعة، لـ إرنيست هيكل (نشر ما بين 1899-1904 م.)