FIGURE 14 in Polymastiidae and Suberitidae (Porifera: Demospongiae: Hadromerida) of the deep Weddell Sea, Antarctic *

FIGURE 14. Aaptos robustus sp. nov. A—holotype SMF 10562, upper surface. B—the same as A, basal surface after detaching from substrate. C—histological section of idem, general view. D—the same as C, detail of cortex with perpendicular and tangentially lying tylostyles. E—the same as C, detail of cortex with ostia. F—principal strongyloxeas, general view. G–details of proximal and distal ends of a strongyloxea. H—intermediary and small tylostyles. Scale bars: A– B 10 mm; C 1 mm; D–E 0.5 mm; F–H 0.1 mm.