Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 345, Figs. 10-13: Holocene, Gulf of California, Mexico. 10, 11, Top and side view of paratype, x 50; 12, 13, top and side views of holotype, x 40 (from McCulloch, 1977).