Sponges grow in various forms, ranging from shallow to thick crusts on logs and periodically submerged vegetation. Some sponges take on fusiform or bulbous masses around branches and twigs, eventually adopting a “vesparium”-like shape. The surface is notably reticulate, rough, and marked with shallow to deep furrows. Oscula, the larger rounded openings, stand out within the reticulum. The sponge’s skeleton differs from the base to the top: the basal skeleton consists of slender and sparse spicular fibers, forming an open mesh filled with small gemmules. As it progresses toward the surface, the skeleton transitions into a denser reticulum of thicker main fibers and secondary slimmer fibers, with fewer gemmules. The main fibers extend their bifurcate or trifurcate ends at the sponge surface. Dry specimens appear brownish-black, possessing a hard but brittle texture.