Image: haeckel discoidea

Discoidea:
Histiastrum Boseanum (Haeckel) = Histiastrum boseanum Haeckel, 1887?
Stephanastrum quadratum (Haeckel) = Stephanastrum quadratum Haeckel, 1887
Dicranastrum furcatum (Haeckel) = Dicranastrum furcatum Haeckel, 1887
Rhopalastrum trispinosum (Haeckel) = Dictyastrum trispinosum (Haeckel, 1887)
Chitonastrum lyra (Haeckel) = Amphirhopalum virchowii lyra (Haeckel, 1887)
Euchitonia carcinus (Haeckel) = Euchitonia sp.?
Myelastrum dodecaceros (Haeckel) = Myelastrum sp.?
Myelastrum papilio (Haeckel) = Myelastrum papilio Haeckel, 1887
Pentinastrum asteriscus (Haeckel) = Spongodiscidae sp.?
Hexinastrum geryonidum (Haeckel) = Larnacillidae sp.?
Heliodrymus dendrocyclus (Haeckel) = Heliodiscidae sp.?
Heliodiscus glyphodon (Haeckel) = Heliodiscidae / Actinommidae sp.?
- 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.)