FIGURE 3. Thorecta cincta n in Thorectinae (Porifera: Demospongiae: Dictyoceratida) from Northeastern Brazil: two new species and transfer of Scalarispongia cincta (Boury-Esnault, 1973) to the genus Thorecta Lendenfeld, 1888

FIGURE 3. Thorecta cincta n. comb. (A) Cross section, showing the dermal armour (da) and the fiber skeleton; (B) Fiber reticulation near the surface (s); (C) Transverse section of the ladder-like skeleton, showing slightly cored primary fibers (pf), uncored secondary fibers (sf) and the surface (s); (D) Cored primary fiber (pf); (E) Uncored secondary fiber (sf) and meshes (m). Scale bars: A, 350 µm; B–C, 500 µm; D–E, 30 µm.