Fig. 2. SEM. Hypothecal view. Plate 1p central and pentagonal shaped. 1p=posterior intercalary plate.
Fig. 3. SEM. Ventral view. Cell convex and anterio-posteriorly compressed. Cingulum shallow with smooth edge.
Fig. 4. SEM. Thecal surface smooth bearing round pores with smooth raised edges.
Fig. 5. SEM. Transverse flagellum with a helical appearance.
Fig. 6. SEM. Vo located on Vp adjacent to Rp (asterisk) within cingulum. Rp situated between plates 1'' and 1''''. Rp=ridged plate; Vo=ventral opening; Vp=ventral plate.
Fig. 7. SEM. Small recessed sulcus houses longitudinal flagellum.
Fig. 8. Line drawing.
Fig. 9. LM. Hypothecal plates: Calcofluor white used.