Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 358, Figs. 1-4: Holocene, Canary Islands, at 4,000-5,000 m. 1-3, Opposite sides and apertural view of holotype, x 35; 4, transverse section of megalospheric test, x 90 (from Schlumberger, 1887).