Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 137, Figs. 1-8: Holocene, brackish water, Brunei, Northwest Borneo. 1, Early stage in optical section showing first whorl with almost exclusively organic wall, x 280; 2, edge view of paratype, SEM, x 72; 3, umbilical side in optical section showing short radial septula in the peripheral region, x 102; 4, spiral side of holotype, SEM, x 75; 5, umbilical side of same, SEM, x 80; 6, umbilical side, SEM, x 58; 7, 8, enlarged central Plate 140 35 areas of figs. 4 and 5, respectively, both SEM, x 155 (from Brönnimann et al., 1983).
Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 136, Figs. 9-10: Holocene, Sepetiba Bay, Brazil. 9, Umbilical view of holotype, SEM, x 125; 10, umbilical view of paratype, SEM, x 125 (from Brönnimann and Zaninetti, 1984).
Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 136, Figs. 14-16: Holocene, Gulf of Cariaco, Venezuela. Umbilical side, edge view, and spiral side of holotype, x 165 (from Bermúdez and Rivero, 1963).