Image: haeckel blastoidea

Blastoidea:
Pentremites pyriformis (Say) = Pentremites pyriformis Say, 1825, from the side
Pentremites orbignyanus (Koninck) = Orophocrinus orbignyanus, from above
Pentremites sp. (Arnold Lang) = Pentremites sp.?, from above; brachioles extended (top), folded back (center), removed (below)
Zygocrinus cruciatus (Bronn) = Astrocrinus cruciatus (Bronn, 1848)?, from above
Orophocrinus stelliformis (Etheridge) = Orophocrinus stelliformis (Owen and Shumard, 1850), from above
Phaenoschisma acutum (Etheridge) = Phaenoschisma acutum (Sowerby, 1834), from above
Elaeacrinus olivanites (Troost) = Nucleocrinus sp.?, from the backside
Elaeacrinus Verneuili (Römer) = Nucleocrinus verneuili (C.F.Roemer, 1851) (8a: from the backside, 8b: from below, stalk removed)
Codonaster trilobatus (Bather) = Codaster acutus McCoy, 1849, from above
Eleutherocrinus Cassedayi (Shumard) = Eleutherocrinus cassedayi Shumard & Yandell, 1856 (10a: from above, 10b: from below, 10c: from the side)
Asteroblastus stellatus (Fr. Schmidt) = Asteroblastus stellatus Eichwald, 1862 (11a: from above, 11b: from below, 11c: from the backside)
Asteroblastus Volborthi (Fr. Schmidt) = Asteroblastus volborthi (F.Schmidt, 1894), from the side with brachioles shown
- 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.)