Fig. 2. LM. Well developed apical groove: reverse S-shape. Transverse flagellum housed in cingulum. Sulcus slightly invades epitheca with finger-like projection (arrow). AG=apical groove; TF=transverse flagellum.
Fig. 3. LM. Distinct apical groove visible (small arrows). Chloroplasts and pyrenoids present. Lobed hypotheca (large arrow).
Fig. 4. LM. Distinct apical groove visible (small arrows). Chloroplasts and pyrenoids present. Lobed hypotheca (large arrow).
Fig. 5. LM. Large elliptical nucleus in left part of cell. N=nucleus.
Fig. 6. Line drawing. C=cingulum; S=sulcus