Trichostemma hemisphaericum n.sp. Sars, 1872: 62, pl. VI figs. 1-15; Topsent, 1913: 20, pl. I fig. 2, pl. II figs 1-2.
Polymastia haemisphaericum : Vosmaer, 1885: 12, pl. I figs. 4, 20-21, pl. II figs. 17-20, pl. III figs 1-5, pl. V figs. 8-16.
Radiella sol : Hansen, 1885: 7; Burton, 1930a: 496, 510; Burton, 1931; 8; Arndt, 1935: 35, fig. 53 (not: Schmidt, 1870)