FIGURE 6 in Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

FIGURE 6. Thyonella gemmata (Pourtalès, 1851) (CASIZ 104737). SEM images of the ossicles: (A–C) cups from body wall in lateral and ventral views, respectively, (D–E) four-holed button from body wall in ventral and lateral view respectively, (F) perforated plate from introvert, (G) rosette from introvert, (H–I) rods from tentacles. Scale bars: A–C, 20 µm, D–F, 50 µm, G, 20 µm, H, 100 µm, I, 40 µm.