FIGURE 2 in Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

FIGURE 2. Thyonella pervicax (Théel, 1886) (MZUSP 1350). SEM images of the ossicles: (A) four-holed button from body wall, (B) cups in lateral and (C) ventral view, (D) knobbed plate from body wall, (E) button from introvert, (F–H) rods from tentacles and (I) supporting rods from tube feet. Scale bars: A–C, 50 µm; D, 200 µm; E, 30 µm; F–H, 200 µm; I, 100 µm