Sponge architecture
Leucosolenia (1)
Leucosolenia (2)
Natural bath sponge
Synthetic bath sponge
Sycon (=Scypha) (1)
Sycon (=Scypha) (2)
Ircinia
Cliona (1)
Cliona (2)
Euplectella (1)
Euplectella (2)
Spicules
Gemmule (1)
Gemmule (2)
