Description Live sponge massive, bulbous, partially burrowing (Fig. 12 A) and with the surface covered by large, circular, low, rounded plates, similar to flat tubercles. Color bright orange, while the tubercles are darkred, brownish colored (Fig. 12 A); the sample preserved in alcohol is beige. The sponge is fleshy and compressible. The surface appears smooth, but is micro-hispid at microscope magnification. SKELETON. Ectosome composed of brushes of densely packed spicules (Fig. 12 B). Choanosome constituted by a lax skeleton of ascending fibers of oxeas (Fig. 12 B). SPICULES. Oxeas microspined, slightly curved or flexuous (Fig. 12 C), 260 – (415, 176.6) – 840 µm × 7.5 – (10, 2) – 12.5 µm, tips acerate or stepped (Fig. 12 D); less common, smooth oxeas with same characteristics; very thin raphids, in thricodragmas, on the surface 22.5 – (29.25) – 50 µm.
Sumber: Porifera from Ponta do Ouro (Mozambique)