Figure 4 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 4. Berndtia denticulata sp. nov. Scanning electron microscopy of mantle sac structures, female. (A) Opercular area, upper-lateral view; (B) small posterior lobe (pl) of operculum; (C) simple, bifid and trifid teeth on lateral margin of opercular bar; (D) large rosette nodules on outer surface of opercular bar; (E) teeth (bifid, trifid and quadrifid) on posterior region of operculum; (F) protrusions of comb collar; (G) occludent margin of the opercular bar (ob) with comb collar (cc); (H) lateral view of opercular area; (I) simple and bifid sharp teeth on lateral margin of opercular bar; (J) multifid scales (ms) and small setae along occludent margin of opercular bar; (K) quadrifid teeth on mantle sac; (L) pentafid teeth and feeble multifid scales on mantle sac; (M) small posterior lobe of operculum, lateral view. Abbreviations: cc – comb collar, ob – opercular bar, pl – posterior lobe, ms – multifid scales. Scale bars in μm.