Fig. 13From: Insights into the structure and morphogenesis of the giant basal spicule of the glass sponge Monorhaphis chuniOrganic (collagen) net (surface facing the basal spicule) detached from the spicules (bound together with the sponge body and other smaller spicules). a General view – smaller body spicules seen in meshes below the net. b Details of the net showing its fine fibrous structureBack to article page