Fig. 2. SEM. Ventral view: hypotheca. Plate 1p long and narrow. 1p=posterior intercalary plate.
Fig. 3. SEM. APC: triangular with a fish-hook shaped apical pore. A round pore situated in each areolae (arrow).
Fig. 4. SEM. Cingulum deep, ascending into a deep sulcal hollow. C=cingulum; S=sulcus.
Fig. 5. LM. Epitheca with APC.
Fig. 6. LM. Hypotheca.