FIGURE 4 in Phorbas topsenti and Phorbas tailliezi (Demospongiae, Poecilosclerida), new names for the Mediterranean ' Phorbas paupertas ' and ' Phorbas coriaceus '

FIGURE 4. Phorbas topsenti sp. nov. A. Semi-thin section in the choanosome, showing archaeocytes (AR), choanocyte chambers (CC), spicule in cross section (Sp), a spherulous cell (Sc) and vacuolar cells (Vc). B. Choanocyte chamber (TEM). C. Vacuolar cell. D. Vacuolar cell, archaeocyte and spiral-shaped bacteria. E. Spherulous cell; N, nucleus; insert, enlargement of the crystalline inclusion in the nucleus. F. Fascicle of collagen fibrils and rod-like bacteria. G. A spiralshaped bacterium.