Fig. 3. Surface views of a connected cell.

A–D. Four side views of a connected cell (cell #2), incrementally rotated by 90°.

E. A magnified view of the top cell showing the nearly matched winding of the hook arcades over the flagella.

F. Oblique view similar to A showing multiple arcades around the cell, including one pair over the flagella and two others not above flagella.

G. Oblique view similar to D, showing the only instance in segmented cells where the surface bowls appeared in helical rows around the cell.