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Fig. 2.48 Structure of bilobate ovicell in Scruparia ambigua .
( A ) General view of fertile zooid with ovicell. ( B ) Basal view of ooecium
(medial suture and horizontal slit arrowed ). ( C ) Fractured ooecium
(cavities of ooecial lobes can be seen; arrows indicate medial suture
and septum). ( D ) Frontal view of ooecium (medial suture arrowed ).
Abbreviations: mz maternal zooid. Scale bars: A , B , D , 100 μm; C , 10 μm
2 Cheilostome Brood Chambers: Structure, Formation, Evolution