Image source: Todd, R. 1965. The Foraminifera of the Tropical Pacific Collections of the ”Albatross”, 1899-1900. Part 4. Rotaliform families and planktonic families [End of Volume]. Bull. U.S. Nation. Mus 161: v+139 pp.+28 pls. This specimen was identified by Todd as Amphistegina lessonii (pl. 11 fig. 4). It is a typical A. radiata (pers comm. Pamela Hallock Muller, pers. comm. June 2019).