Figure 10 from: Manconi R, Cadeddu B, Ledda F, Pronzato R (2013) An overview of the Mediterranean cave-dwelling horny sponges (Porifera, Demospongiae). ZooKeys 281: 1-68. https://doi.org/10.3897/zookeys.281.4171

Figure 10 - Dysidea incrustans. a close up of a large (ca. 20 cm) encrusting specimen showing scattered small oscula and visible inhalant pores b reticulate skeleton with a secondary network of slimmer fibres almost free of inclusions c main fibres cored of foreign material supporting the conules at the sponge surface