Fig. 13 in Flagellia, a new subgenus of Haliclona (Porifera, Haplosclerida)

Fig. 13. Haliclona (Flagellia) porosa (Fristedt, 1887) subgen. et comb. nov., from Mauritania (ZMA Por. 06624). A. Habitus (arrow) on dead coral (scale bar = 1 cm). B–E. SEM images of the spicules. B. Oxeas. B 1. Detail of one of the apices. C–D. Flagellosigmas. C 1. Detail of long ending of flagellosigma. C . Detail of short ending of flagellosigma. E. Sigma.