Plate 21: Acanthometra
Plate 22: Spyroidea
Plate 23: Bryozoa
Plate 24: Desmidiea
Plate 25: Sertulariae
Plate 26: Trachomedusae
Plate 27: Ctenophorae
Plate 28: Discomedusae
Plate 29: Tertacoralla
Plate 30: Echinidea
Issue 3 of Kunstformen der Natur, consisting of 10 lithographs by German biologist Ernst Haeckel and lithographer Adolf Giltsch. Ten of these loose-leaf issues were published between 1899 and 1904. All sets were republished as a single book in 1904
The prints show various organisms, many of which were first discovered and described by Haeckel himself. His depictions of beauty in nature were influential to many artists.
Plate 21: Acanthometra
Plate 22: Spyroidea
Plate 23: Bryozoa
Plate 24: Desmidiea
Plate 25: Sertulariae
Plate 26: Trachomedusae
Plate 27: Ctenophorae
Plate 28: Discomedusae
Plate 29: Tertacoralla
Plate 30: Echinidea