FIGURE 6 in Taxonomy of calcareous sponges (Porifera, Calcarea) sampled on artificial substrates of a recreational marina in the Tropical Northeastern Brazilian coast

FIGURE 6. Sycon bellum sp. nov. (holotype, UFBA 4527-POR). A—Preserved specimen with oscular membrane (arrowheads); B—Oscular membrane; C—Transversal section showing the syconoid aquiferous system (arrowhead highlighting the tufts of diactines); D—Detail of a distal cone with diactines and triactines (arrowhead); E—Triactine (arrowhead) of the tubar skeleton; F—Transversal section of the atrial skeleton and apical actines (in detail). at – atrium; dc – distal cone.Published as part of Chagas, Cléslei & Cavalcanti, Fernanda F., 2017, Taxonomy of calcareous sponges (Porifera, Calcarea) sampled on artificial substrates of a recreational marina in the Tropical Northeastern Brazilian coast, pp. 203-224 in Zootaxa 4363 (2) on page 214, DOI: 10.11646/zootaxa.4363.2.2, http://zenodo.org/record/109867