Fig. 2. SEM. Oval and round cell with prominent areolae and rounded antapex.
Fig. 3. SEM. Long and narrow cell: large areolae with pores. Antapex tapered and ventrally off-center. Small knob-shaped posterior protrusion present (arrow).
Fig. 4. SEM. Long and narrow cell: smooth thecal surface with small scattered pores. Antapex ventrally off-center. Megacytic zone void of pores. Small knob-shaped posterior protrusions present (arrow). M=megacytic zone.
Fig. 5. SEM. Long and narrow cell: areolae with pores. Tapered antapex.
Fig. 6. LM. Long and narrow cell with large dorsal nucleus. Small, blunt projections on tapered antapex (arrow). N=nucleus.