FIGURE 77 in Calcareous sponges of the Western Indian Ocean and Red Sea

FIGURE 77. Sycettusa zanzibaris (Jenkin, 1908), a–b, habitus of preserved specimens from the Seychelles, a, ZMA Por. 11491 (scale bar = 1 cm), b, ZMA Por. 11566 (scale bar = 1 cm), c, light microscopic image of cross section of ZMA Por. 11566, d–g, ditto, SEM images of the skeleton, d, cross section, e, cortical skeleton, f, atrial skeleton, g, skeleton of the oscular rim.