Figure 4.10-4.12. Cibicidoides robertsonianus (Brady), 1881. 4.10. Spiral view. Syntype. Recent. Challenger Station 24, West Indies, 390 fathoms. Natural History Museum, London. NHM ZF 2547. 4.11. Apertural view of specimen 10. 4.12. Umbilical view of specimen 10. Scale Bar = 239 microns.