Image: haeckel hexactinellae

Hexactinellae:
Farrea Haeckelii (Franz Eilhard Schulze) = Farrea occa Bowerbank, 1862, habitus
Farrea Haeckelii (Franz Eilhard Schulze) = Farrea occa Bowerbank, 1862, mesh of skeleton
Euplectella aspergillum (Owen) = Euplectella aspergillum Owen, 1841, habitus
Euplectella aspergillum (Owen) = Euplectella aspergillum Owen, 1841, mesh of skeleton
Holtenia crateromorpha (Wyville Thompson) = Vazella sp.?, habitus
Sclerothamnus spiralis (Marshall) = Sclerothamnus sp.?, habitus
Sclerothamnus spiralis (Marshall) = Sclerothamnus sp.?, branch
Polyopogon amadu (Wyville Thompson) = Poliopogon amadou Thomson, 1873, cross-section
Pheronema rhaphanus (Franz Eilhard Schulze) = Pheronema raphanus Schulze, 1894, needle spicule
Hyalonema indicum (Franz Eilhard Schulze) = Hyalonema indicum Schulze, 1894, amphidiscus spicule
Hyalonema conus (Franz Eilhard Schulze) = Hyalonema conus Schulze, 1886, amphidiscus spicule
Regadrella phoenix (Oskar Schmidt) = Regadrella phoenix Schmidt, 1880, floricome spicule
Saccocalyx pedunculata (Franz Eilhard Schulze) = Saccocalyx pedunculatus Schulze, 1895, discohexaster spicule
Crateromorpha Meyeri (Gray) = Crateromorpha meyeri Gray, 1872, discohexaster spicule
Hyalostylus dives (Franz Eilhard Schulze) = Hyalostylus dives Schulze, 1886, hexaster spicule
Polylophus philippinensis (Gray) = Lophocalyx philippinensis (Gray, 1872), plumicome spicule
Stylocalyx tenera (Franz Eilhard Schulze) = Hyalonema tenerum Schulze, 1886, amphidiscus spicule
- 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.)