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Fig. 1.22 Embryonic brooding in Beania bilaminata . ( A ) Intermediate
stage of embryogenesis (cells of embryophore hypertrophied; distal
‘neck’ of internal brood sac arrowed ). ( B ) Late embryo (cells of embryophore fl attened). ( C ) Early embryo in brood sac. Abbreviations: bb brown
body, bs cavity of internal brood sac, bsw brood-sac wall, bw basal
wall, bz brooding zooid, dz distal zooid, е embryo, fw frontal wall,
ok kenozooidal ooecium, op operculum, p polypide, pl placental analogue
(embryophore), sc sclerite, tw transverse wall. Scale bars: A, B 100 μm
1 Reproductive Patterns of Gymnolaemate Bryozoa: General Overview and Comparative Analysis
Fig. 1.22 Embryonic brooding in Beania bilaminata . ( A ) Intermediate
stage of embryogenesis (cells of embryophore hypertrophied; distal
‘neck’ of internal brood sac arrowed ). ( B ) Late embryo (cells of embryophore fl attened). ( C ) Early embryo in brood sac. Abbreviations: bb brown
body, bs cavity of internal brood sac, bsw brood-sac wall, bw basal
wall, bz brooding zooid, dz distal zooid, е embryo, fw frontal wall,
ok kenozooidal ooecium, op operculum, p polypide, pl placental analogue
(embryophore), sc sclerite, tw transverse wall. Scale bars: A, B 100 μm
1 Reproductive Patterns of Gymnolaemate Bryozoa: General Overview and Comparative Analysis