Figure 2. Microporella arctica Norman, 1903 in Arctic species of the cheilostome bryozoan Microporella, with a redescription of the type species

Figure 2. Microporella arctica Norman, 1903, Vadsö, Norway, lectotype, NHM 11.10.1.1244, bleached apart from I. (A) Group of zooids with complete and incomplete ovicells; (B) autozooid and avicularium; (C) ovicellate zooids; (D) growing edge; (E) oblique view of growing edge showing pore chamber windows; (F) ascopore; (G) orifice with condyles present in each proximolateral corner; (H) avicularium; (I) avicularian mandible. Scale bars: 200 mm (A); 20 mm (B, G); 100 mm (C, D, E); 10 mm (F, H); 30 mm (I).