Fig. 2. SEM. Hypothecal view. Plates outlined by dots. Plate 1p long and narrow. Large plates 3''' and 4''' occupy most of hypotheca.
Fig. 3. SEM. Thecal surface smooth with scattered small pores (arrowheads). Suture line uneven and bumpy (arrow).
Fig. 4. SEM. Apical pore short and slit-like, situated in Po adjacent to plate 2'. Po=apical pore plate.
Fig. 5. SEM. Vo, Vp and Rp (asterisk) within cingulum. Rp adjacent to plate 2'''' and Vp. Rp=ridged plate; Vo=ventral opening; Vp=ventral plate.
Fig. 6. SEM. Arrangement of Vo, Vp and Rp (asterisk) plates.
Fig. 7. Line drawing.
Fig. 8. LM.
Fig. 9. LM.