Phaeodaria–Rohrstrahlinge from Kunstformen der Natur (1904) by German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist, and artist Ernst Haeckel.
Phaeodaria–Rohrstrahlinge from Kunstformen der Natur (1904) by German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist, and artist Ernst Haeckel.