Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 338, Figs. 17-18: Holocene, Pacific, Galapagos Islands. Side and apertural view of holotype, x 70 (from McCulloch, 1977).
