A, B. Letepsammia formosissima (SAM_H1429, off Kidds Beach, 79 m) A calicular view B basal view C, D Letepsammia franki (SAMC_A090070, off Durban, 95 m) C calicular view D basal view E, F Rhombopsammia niphada (SAM_H1390, off Port Alfred, 90 m) E calicular view F basal view G, H Stephanophyllia fungulus (SAMC_A073106, Cape Vidal, 140 m) G calicular view H basal view I Madrepora oculata (SAM_ H3038, off St Lucia, 825 m) full view J, L Culicia sp. cf. australiensis (SAMC_ A073032, off Shaka’s Rock, 50 m) J calicular view K full view L septa details M, N Culicia excavata. M (UCTES_DBN85H, off Ispongo, depth unknown): full view N (BMNH 1840.09.30.19, Cape of Good Hope, depth unknown): Calicular view O, P Stenocyathus vermiformis (SAM_H3213, off Cintsa, 630 m) O calicular view P lateral view Scale bars: 10 mm (A–H, J–N); 100 mm (I); 2 mm (O, P).