FIGURE 53 in An update on the diversity of marine sponges in the southern Gulf of Mexico coral reefs

FIGURE 53. Polymastia tenax Pulitzer-Finali, 1986 (CNPGG-2253), skeleton and spicules: A. transversal section of the skeleton of the ectosomal region, small tylostyles perpendicular with the surface making a hispid surface; B. transversal section of the skeleton, choanosomal region with slender tylostyles in criss-cross, detail zoomed in; C. transversal section of skeleton; D. general view of spicules; E. Subtylostyle I; F. Subtylostyle I with a tyle present in the axis; G. Subtylostyle II with fusiform appearance; H. Subtylostyles III. Scale bars: A–B = 100 µm; C = 250 µm; D = 100 µm; E–H = 50 µm.