FIGURE 3. S in A preliminary account of the Arctic/Subarctic Suberites (Porifera: Demospongiae) fauna

FIGURE 3. S. cebriones from the High Arctic: (a–f) scanning electron microscope (SEM) images of spicules, (g) cross section, (h) habitus: (a) large subtylostyle and (a1) its basal end; (b) small tylostyle and (b1) its basal end; (c) strongyle; (d) microstyle and microstrongyle; (e) microxea; (f) microstrongyle; (ch) choanosomal reticulation; (sb) radial bundles in the ectosome; (sm) surface microrhabds.