FIGURE 4. A, B in Taxonomy and diversity of coelobite bryozoans from drift coral cobbles on Co To Island, northern Vietnam

FIGURE 4. A, B. Cranosina coronata (Hincks, 1881), VNMN-0215. A. Part of colony. B. autozooids and avicularia. C–F. Antropora minor (Hincks, 1880). C. Young colony with ancestrula (asterisk), partly overgrown by the foraminiferan Planorbulina larvata (bottom) and forming stand-off with it (upper left), VNMN-0218. D. Autozooids and avicularia, VNMN-0217. E. Autozooids and avicularia, with left-center autozooid having vestigial ooecium, and several autozooids having smooth, raised prominence (gymnocystal papilla) at proximal end, VNMN-0217. F. Non-ooeciate autozooid (left-center), ooeciate autozooid (lower right), and vicarious avicularium (upper right), VNMN-0276. Scale bars: A, C, 1 mm; B, 500 µm; D, 300 µm; E, 150 µm; F, 200 µm.