
Fig. 2. LM. Single cell. Cell elongate with visible lipid globules (arrows). Premedian cingulum displaced 1/5 to 1/3 cell length.

Fig. 3. LM. Single cell. Epitheca conical with concave to flat apex; possibly released from a chain. Hypotheca bilobed (arrow).

Fig. 4. SEM. Two cell chain. Attachment point visible (arrow). Both flagella present. LF=longitudinal flagella; TF=transverse flagella.

Fig. 5. SEM. Four cell chain. Sulcus long and deep; nearly runs length of cell notching hypotheca at antapex. Terminal cells slightly longer.

Fig. 6. SEM. Chain-formation. Cells in this chain shorter and rounder. Cell surface rugose. Terminal cell slightly longer.

Fig. 7. SEM. Chain-formation. Cell anterio-posteriorly compressed. Surface reticulate pattern visible.

Fig. 9. LM. Dorsal view: 1 cell within a chain. Cell anterio-posteriorly compressed. Transverse flagella within the deep cingulum. Epitheca smaller than hypotheca.