Figure 5.14-5.15. Stilostomella annulifera (Cushman and Bermúdez), 1936. 5.14. Side view. Paratype. Middle Eocene? Under the library of Havana University. Bermúdez Station 257, Cuba. Smithsonian Collection. CC 23100. Scale Bar = 237 microns. 5.15. Side view. Oligocene. DSDP Leg 85, Site 573B, 26-CC. Scale Bar = 192 microns.