FIGURE 65. Tethya diploderma Schmidt, 1870 in An update on the diversity of marine sponges in the southern Gulf of Mexico coral reefs

FIGURE 65. Tethya diploderma Schmidt, 1870 (CNPGG-2191), skeleton and spicules: A. transversal section of the skeleton, radial tracts of megascleres (strongyloxeas) and several sand grains in choanosomal region; B. detail of the ectosomal region with a layer of aster microscleres and part of the tracts of strongyloxeas; C. strongyloxeas, 1—large category and 2—small category; D. spherasters; E. strongylasters; F. oxyaster. Scale bars: A = 500 µm; B = 250 µm; C = 100 µm; D = 25 µm; E–F = 5 µm.