Published December 11, 2017
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FIGURE 8 in Taxonomy of calcareous sponges (Porifera, Calcarea) sampled on artificial substrates of a recreational marina in the Tropical Northeastern Brazilian coast
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FIGURE 8. Sycon avus sp. nov. (holotype, UFBA 4526-POR). A—Preserved specimen with preoscular membrane (arrowhead) and fringe of trichoxeas (arrow); B—Detail of the fringe with a basal ring of spicules (arrowhead); C—Transversal section showing the syconoid aquiferous system; D—Distal cones with diactines and triactines (arrowheads in detail); E— Choanocyte chambers with reproductive elements (*) and tubar skeleton formed by triactines (arrowheads); F—Atrial cavity with the apical actines of tetractines (arrowhead).
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