FIGURE 3. Astrotylus astrotylus. A—holotype SMF 10518 in Polymastiidae and Suberitidae (Porifera: Demospongiae: Hadromerida) of the deep Weddell Sea, Antarctic *

FIGURE 3. Astrotylus astrotylus. A—holotype SMF 10518, an arrow indicates a papilla. B—histological section of idem. C—principal tylostyle, general view. D—proximal end of idem. E—small tylostyle. F—astrotylostyles, general view. G—detail of fungiform serrated tyle. Scale bars: A 5 mm; B 1 mm; C–E 0.1 mm; F 0.01 mm; G 0.001 mm.