FIGURE 4. Pseudosuberites nudus Koltun, 1964. A in Demospongiae of ANT XXIV / 2 (SYSTCO I) Expedition—Antarctic Eastern Weddell Sea

FIGURE 4. Pseudosuberites nudus Koltun, 1964. A, habit of SMF 11781. B, section of SMF 11781. C, epidermis of SMF 11781 in topview. D, section of SMF 11783. E–J, SEM-pictures of spicules of SMF 11781. E–G, subtylostyles and details thereof. H–J, tylostyles and details thereof. Scale bars: A: 20 mm, B: 3 mm, C–D: 2 mm, E: 300 µm, F–G: 30 µm, H: 100 µm, I–J: 10 µm.