FIGURE 2 in Desmacella Schmidt, 1870 from Brazil: Description of two new species and a review of records (Desmacellida: Demospongiae: Porifera)

FIGURE 2. Desmacella microsigmata sp. nov. (UFPEPOR 1759) in SEM. A, preserved specimen; B, thick section showing the ectosome and choanosome; C, size variation of tylostyles; D, sigma; E, details of microspines on the tip of a sigma; F, variation of tylostyle bases. Scale bars: A = 1 cm; B = 200 µm; C = 100 µm; D = 5 µm; E = 2 µm; F = 10 µm.