FIGURES 19–22. Setosellina constricta Harmer, 1926 in Early Pleistocene and Holocene bryozoans from Indonesia

FIGURES 19–22. Setosellina constricta Harmer, 1926, Holocene, UPGG041, off South Sulawesi. 19, 20. RGM.1350548. 19. General view of a colony encrusting a sediment grain. 20. Close-up of part of the colony, including ancestrula (An), periancestrular vibracula and zooids, and intramural buds in some zooids. 21. RGM.1350549, group of zooids and associated vibracula, two of which with intramural buds. 22. RGM.1350550, marginal kenozooids on the underside of the substrate. Scale bars: Fig. 19 = 500 µm; Figs 20–22 = 200 µm.