FIGURE 8 in Vosmaeria Fristedt, 1885 (Porifera, Demospongiae, Halichondriidae): revision of species, phylogenetic reconstruction and evidence for split

FIGURE 8. Vosmaeria crustacea: geographical variability of spicule shape. Percents of spicules characterized by the respective features are indicated. Regions: 1–Skagerrak Straight, 2–Murman Coast, 3–Kandalaksha Bay, 4–Onega Bay. A– curvature of (sub)tylostyles (n–not curved, straight), s–slightly curved, m–moderately curved, c–considerably curved). B–slenderness of (sub)tylostyles (sl–slender, f–fusiform). C–tyles of (sub)tylostyles (a–absent, t–terminal, s– slightly displaced, m–moderately displaced, c–considerably displaced). D–curvature of oxeas (n–not curved, straight), s– slightly curved, m–moderately curved, c–considerably curved).