Image de Hyrtios Duchassaing & Michelotti 1864

Description :

Figure 35Hyrtios collectrix. a detail of a fibre tract showing a scanty amount of spongin with a wide variety of mineral debris embedded, including also spicules of many other sponge species b foreign materials embedded in the sponge surface c pictorial representation of a sponge cross section close to the surface with flagellate chambers represented as terminations of a tree-shaped aquiferous system. a–c modified from Schulze (1879b).