Gypsina plana (Carter, 1876)

Description:

Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification.  Van Nostrand, Reinhold Co. New York 1728 pp. Plate 661, Figs. 7-10: Holocene, Mauritius Island, Indian Ocean. 7, Section perpendicular to surface, x 75; 8, section through center of a knob showing somewhat irregular chambers and perforated septa, x 96; 9, diagrammatic figure of specimen encrusting a shell, showing radially built walls and perforated septa, enlarged; 10, exterior of specimen attached to substrate, natural size (from Lindsey, 1913).