Plate 1 in Taxonomic Revision and Classification of Extant Holococcolithophores Previously Placed in the Genus Anthosphaera Kamptner emend. Kleijne 1991

Plate 1. Syracosphaera molischii Schiller HOL Scale bars = 1μm 1–3. Syracosphaera molischii Schiller var. molischii HOL 1. Complete coccosphere. 2. Detailed view showing the ultrastructure (arrow) of CFCs. 3. Detailed view of BCs showing the angular microcrystallites of the central structure and the tiny perforations at the perforate cycle (arrow). 4–6. Syracosphaera molischii var. pertusa Archontikis, Young, Cros var. nov. HOL 4. Holotype; flattened coccosphere. 5. Paratype; coccosphere with BCs that bear larger (to that of S. molischii var. molischii HOL) perforations on their perforate cycle (arrow). 6. Detailed view of BCs with longitudinally arranged crystals at the central structure.