FIGURE 6 in Taxonomy of Petrosiidae Van Soest, 1980 (Haplosclerida, Porifera) from Brazil

FIGURE 6. Xestospongia muta (Schmidt, 1870). Holotype of Prianos grayi (YPM 9008): (A) ectosome in tangential view; (B) perpendicular section through the choanosome, (G–H) strongyles and details of their extremities. Xestospongia grayi sensu Mothes & Bastian, 1993 (MCN 1327): (C) ectosome in tangential view, (D) perpendicular section throught the choanosome, (I– J) strongyles and details of their extremities. MNRJ 13104: (E) ectosome in tangential view, (F) perpendicular section through the choanosome, (K–L) strongyles and details of their extremities. Scale bars: (A–F) 100 µm, (G, I, K) 50 µm, (H, J, L) 10 µm.