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Fig. 1.14 Details of reproductive anatomy in: ( A ) Watersipora subtorquata ; ( B , D ) Emballotheca quadrata ; ( C ) Quadriscutella papillata .
( A ) Nutrient-storage cells on the basal wall of a fertile autozooid. ( B )
Ovary with two follicles showing early vitellogenic and previtellogenic
doublets. ( C ) Ovary with a pair of vitellogenic doublets and a previtellogenic doublet. ( D ) Preovulatory oocyte in ovary (intraovarian zone
arrowed ). Abbreviations: bw basal wall, is intraovarian space, nsc nutrient-storage cells, o oocyte, ov ovary-wall cells, poc previtellogenic
oocyte, sf squamous follicle cells, voc vitellogenic oocyte. Scale bars:
A – C , 20 μm; D , 40 μm
1 Reproductive Patterns of Gymnolaemate Bryozoa: General Overview and Comparative Analysis
Fig. 1.14 Details of reproductive anatomy in: ( A ) Watersipora subtorquata ; ( B , D ) Emballotheca quadrata ; ( C ) Quadriscutella papillata .
( A ) Nutrient-storage cells on the basal wall of a fertile autozooid. ( B )
Ovary with two follicles showing early vitellogenic and previtellogenic
doublets. ( C ) Ovary with a pair of vitellogenic doublets and a previtellogenic doublet. ( D ) Preovulatory oocyte in ovary (intraovarian zone
arrowed ). Abbreviations: bw basal wall, is intraovarian space, nsc nutrient-storage cells, o oocyte, ov ovary-wall cells, poc previtellogenic
oocyte, sf squamous follicle cells, voc vitellogenic oocyte. Scale bars:
A – C , 20 μm; D , 40 μm
1 Reproductive Patterns of Gymnolaemate Bryozoa: General Overview and Comparative Analysis