FIGURE 45. Leucetta microraphis Haeckel, 1872 in Calcareous sponges of the Western Indian Ocean and Red Sea

FIGURE 45. Leucetta microraphis Haeckel, 1872, from Mayotte and Madagascar, a–d, habitus in situ (photos N.J. de Voogd and A. Bialecki), a, Mayotte RMNH Por. 8341, b, ditto, c, Mayotte RMNH Por. 8318, d, Madagascar RMNH Por. 8717, e, Mayotte RMNH Por. 8341, on deck, f, Mayotte RMNH Por. 8341, SEM image of overview of the spicules showing giant and small triactines from the main skeleton, and tetractines (arrows) from the atrial wall.