Figure 6 from: van Soest R, Beglinger E, De Voogd N (2010) Skeletons in confusion: a review of astrophorid sponges with (dicho–)calthrops as structural megascleres (Porifera, Demospongiae, Astrophorida). ZooKeys 68: 1-88. https://doi.org/10.3897/zookeys.68.729

Figure 6 - Dercitus (Stoeba) microphotos, A–B. Dercitus (Stoeba) simplex, BMNH 1931.1.1.31a, slide of specimen from Invisible Bank, Andaman Islands, A overview of dichocalthrops (scale bar 100 µm) B sanidasters (scale bar 50 µm) C–F Dercitus (Stoeba) plicatus, holoype MNHN DT 3635, with schizotype BMNH 1868.3.2.1. (slide only), from Algiers 1868, C photo of holotype, made by P. Cárdenas (scale bar 1 cm) D overview of spicules in BMNH type slide (scale bar 100 µm) E SEM photo of megascleres from holotype F sanidasters from holotype.