FIGURE 59 in Calcareous sponges of the Western Indian Ocean and Red Sea

FIGURE 59. Leucandra pilula sp.nov., SEM images of the spicules, a, giant triactines of the choanosome, b, cortical triactines, c, small triactines of the choanosome and subatrial region, d, tetractines of the atrial skeleton, e, fragment of trichoxea from the oscular rim.