FIGURE 3. Poecillastra tavianii n in Two new species of deep-sea sponges (Porifera, Demospongiae) from submarine canyons of the Sardinian continental margin (western Mediterranean Sea)

FIGURE 3. Poecillastra tavianii n. sp., SEM images of spicules: (A) Dichotriaenes; (B) Pseudocalthrop; (C) Mesodichotriaenes (paratype MUZAC 6314); (D) Oxeas I; (E) Oxeas II; (F) Acanthomicroxea; Spirasters (G) type I; (H) type II; (I) type III; (J) Plesiasters. Scale bars: A, B, C, D, E = 100 µm; F = 20 µm; G, H, I, J = 5 µm.