Figure 18 in Biodiversity and biogeography of the coral boring barnacles of the genus Berndtia (Cirripedia: Acrothoracica) in the West Pacific, with description of three new species

Figure 18. Berndtia utinomii sp. nov. Scanning electron microscopy of mantle sac structures, female. (A) Opercular area, upper-lateral view; (B) fine round nodules and sparse setae on outer surface of opercular bar; (C) simple setae on outer surface of opercular bar; (D) tip of posterior lobe; (E) posterior part of opercular area with comb collar (cc) and posterior lobe (pl); (F) lateral view of posterior lobe; (G, H) protrusions of comb collar; (I) teeth on lateral margin of opercular bar; (J) simple teeth and massive multifid scales on lateral region of operculum; (K) seta and multifid scales on lateral region of operculum; (L) simple; (M) trifid; (N) bifid teeth on mantle sac surface. Abbreviations: cc – comb collar, ob – opercular bars, pl – posterior lobe. Scale bars in μm.