Figure 12 in Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)

Figure 12. Raymondcia rigida (Lorenz, 1886), holotype of Pentapora boreale Kuklinski & Hayward (2004), Kingsfjorden, Spitsbergen, NHM 2003.3.10.1; scanning electron micrographs of uncoated specimen imaged using back-scattered electrons. A, zooids and growing edge. B, zooids with ovicells and suboral avicularia. C, primary orifice, nonporous ovicell, suboral avicularium and lyrula. D, primary orifice, suboral avicularium and ovicell overgrown by granular calcification. Scale bars: A = 600 Mm; B = 200 Mm; C = 80 Mm; D = 100 Mm.