FIGURE 5 in Calcareous sponges of the Western Indian Ocean and Red Sea

FIGURE 5. Arturia (?) adusta (Wörheide & Hooper, 1999), ZMA Por. 10612, from the Seychelles, La Digue island, a, preserved habitus (scale bar = 1 cm), b, light microscopic image of cormus showing tight anastomosis of tubuli, c–e, SEM images of the spicules, c, triactines, d, tetractines, e, detail of apical actine of tetractine.