Figure 21 in Diversity and taxonomy of intertidal Bryozoa (Cheilostomata) at Akkeshi Bay, Hokkaido, Japan

Figure 21. Porella belli (Dawson, 1859). (A, F) NHM 2006.2.27.10; (B, D, E) NHM 2006.2.27.9; (C) NHM 2006.2.27.66. (A) Distal view of colony margin with differentiating zooids; (B) immature zooids; (C) zooids with developing and complete ovicells; (D) mature zooids with inflated immersed ovicells; (E) mature zooids with granulose and umbonate frontal walls; (F) ancestrular region. Scale bars: 0.5 mm.