Fig. 2. LM. Left sulcal list with three supporting ribs. Posterior nucleus. The hypothecal ventral projection toothed (arrow).
Fig. 3. LM. Hypothecal plates covered with large areolae. Anterior cingular list and posterior cingular list projected anteriorly and supported by ribs. ACL=anterior cingular list; PCL=posterior cingular list.
Fig. 4. Line drawing. Right sulcal list present. Left sulcal list reticulated. Cingular list ribs depicted. Large areolae, each with a pore.
Fig. 5. SEM. Paired cells. Cells dorsally joined at widest point of hypotheca.