Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 42, Figs. 2-11: Holocene. 2-4, Aral Sea, opposite sides and apertural view, x 100; 5, Aral Sea, two-chambered specimen, x 100; 6-8, Caspian Sea, apertural view and opposite sides, x 100 (2-8, from Mayer, 1974); 9-11, Lake Issyk-Kul', at 40 m, Kyrgyzstan, apertural view and opposite sides of lectotype, here designated, x 108 (from Yankovskaya and Mikhalevich, 1972).