Image: haeckel stauromedusae

Stauromedusae:
(top right): Tesserantha connecteus (Haeckel) = Tesserantha connectens Haeckel, 1880, medusa, side view
(right): Tesserantha connecteus (Haeckel) = Tesserantha connectens Haeckel, 1880, medusa, bottom view
(center): Haliclystus auricula (Clark) = Haliclystus auricula (Rathke, 1806), medusa, side view
(top left): Haliclystus auricula (Clark) = Haliclystus auricula (Rathke, 1806), medusa, side view with umbrella folded back
(bottom left): Haliclystus auricula (Clark) = Haliclystus auricula (Rathke, 1806), medusa, bottom view
(left): Lucernaria bathyphila (Haeckel) = Lucernaria bathyphila Haeckel 1880, medusa, cross-section of stalk
(bottom right): Lucernaria pyramidalis (Haeckel) = Lucernaria quadricornis O.F.Müller, 1776, medusa, bottom view
- 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.)