Plate P11. 1. Distephanus speculum pentagonus Lemmermann (Sample 191-1179C-5H-5, 75–77 cm). 2. Distephanus crux crux (Ehrenberg) Haeckel (Sample 191-1179C-11H-5, 75–77 cm). 3. Dictyocha cf. aspera (Lemmermann) Bukry and Foster (Sample 191-1179C-14H-5, 73–75 cm). 4. Dictyocha fibula Ehrenberg (Sample 191-1179C-18H-6, 75–77 cm). 5. Dictyocha rhombica (Schultz) Deflandre (Sample 191-1179C-18H-5, 75–77 cm). 6. Distephanus boliviensis binoculus Ciesielski (Sample 191-1179C-14H-5, 73–75 cm). 7. Distephanus crux ssp. loeblichii Bukry (Sample 191-1179B-2H-4, 75–77 cm). 8. Distephanus polyactis (Ehrenberg) Deflandre (Sample 191-1179C-2H-2, 75–77 cm). Scale bars = 10 Ám.