FIGURE 4 in Taxonomy of deep-water tetillid sponges (Porifera, Demospongiae, Spirophorina) from Brazil, with description of three new species and new characters

FIGURE 4. Cinachyrella kuekenthali, specimens from REVIZEE programme: A, preserved specimens (from the left to the right, MNRJ 21211, MNRJ 6518; MNRJ 6517); B, transverse cut showing internally a radial organization and a lighter ectosome (MNRJ 6518); C, transverse section showing a radial skeleton with bundles of megascleres piercing the surface which has detritus (MNRJ 6518); D, tips of oxeas I (MNRJ 6518); E, tip of oxeas II (MNRJ 6518); F, protriaenes (MNRJ 6518); G, anatriaene (MNRJ 6518); H, SEM images of microacanthoxeas (MNRJ 6518); I, detail of microacanthoxeas; J, SEM images of sigmaspires (MNRJ 6518). Scale bars: A = 20 mm; B = 5 mm; C = 300 µm; D–E = 10 µm; F–G = 30 µm; H = 20 µm; I–J = 5 µm.