FIGURE 9 in Serpulidae (Annelida: Polychaeta) from the Suez Canal- From a Lessepsian Migration Perspective (a Monograph) 2848

FIGURE 9. Operculum of Hydroides heterocerus juvenile form no. 1 (specimen from Cambridge Expedition mollusc deposited at the Natural History Museum in London, precise location unknown [See App. Table 2A]). A—Apical view, drawing and photograph, respectively, B—Profile view of drawing and photograph, C—Three-quarters view; note sharply pointed marginal teeth of funnel radii (in contrast with those in Fig. 8), D—Collar chaetae (magnification, <10 x). Scales: B—0.5 mm, D—100 µm.