Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 446, Figs. 20-21: Holocene, off Culebra lsland, E. of Puerto Rico, West Indies. Side and edge views of lectotype of Cristellaria bradyi Goës, and holotype of M. densicostata Thaimann (BMNH ZF 1808), x 45 (from Loeblich and Tappan, 1964).