A, F Stephanocyathus (Acinocyathus) explanans: A, C (USNM 62500, off Durban, 183–220 m) Calicular view B basal view C lateral view D, F (SAMC_A090144, off Port St Johns, 96–98 m) D calicular view E basal view F lateral view G, I Stephanocyathus (Odontocyathus) campaniformis (SAM_H3178, off Coffee Bay, 1420 m) G calicular view H basal view I lateral view J, L Stephanocyathus (Odontocyathus) nobilis (SAM_H1697, off Groot Berg Estuary, 1050 m) J calicular view K basal view L lateral view M, N Tethocyathus virgatus (SAMC_A073180, off Mazeppa Bay, 240–250 m) M calicular view N lateral view O, P Trochocyathus (Trochocyathus) sp. 1 (SAM_H1244, off East London, 59 m) O calicular view P lateral view. Scale bars: 10 mm.