Sivun Spongia Linnaeus 1759 kuva

Kuvaus:

Figure 26Spongia lamella. a–c different growth forms d grouped oscules in the inner exhalant sponge surface e detail (SEM) of the inhalant apertures f detail of sponge surface with mineral grains enclosed in the slim collagenous layer g skeletal network of a lamina with abundant, cored primary fibres extended between the inner and outer surfaces, and inter-connected by a network of thinner secondary fibres without inclusions.