Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 353, Figs. 16-18: Holocene. E. Pacific, off San Benito Islands, Mexico, at 26 m. Top view and opposite sides of holotype, x 95 (from McCulloch, 1977).