1. Genus Astropyga Gray, 1825
2. Genus Centrostephanus Peters, 1855
3. Genus Chaetodiadema Mortensen, 1903
4. Genus Diadema Gray, 1825
5. Genus Echinothrix Peters, 1853
6. Genus Eremopyga A. Agassiz & H.L. Clark, 1908
7. Genus Goniodiadema Mortensen, 1939
8. Genus Asteropyga accepted as Astropyga Gray, 1825 (misspelling)
9. Genus Calamarius accepted as Calmarius A. Agassiz, 1872 (ex Gray, MS) accepted as Diadema Gray, 1825 (unjustified emendation)
10. Genus Calmarius A. Agassiz, 1872 (ex Gray, MS) accepted as Diadema Gray, 1825 (unaccepted > unavailable name, manuscript name appearing in a synonymy list in Agassiz (1872-74: p. 104))
11. Genus Centrechinus Jackson, 1912 accepted as Diadema Gray, 1825 (objective junior synonym of Diadema)
12. Genus Centroctephanus accepted as Centrostephanus Peters, 1855 (unaccepted > misspelling, misspelling of genus name)
13. Genus Diamema accepted as Diadema Gray, 1825 (misspelling)
14. Genus Echinodiadema Verrill, 1867 accepted as Centrostephanus Peters, 1855 (subjective junior synonym of Centrostephanus)
15. Genus Echinotrix accepted as Echinothrix Peters, 1853 (misspelling)
16. Genus Garelia Gray, 1855 accepted as Echinothrix Peters, 1853 (objective junior synonym)
17. Genus Savignya Desor, 1855 accepted as Echinothrix Peters, 1853 (subjective junior synonym)
18. Genus Thrichodiadema A. Agassiz, 1863 accepted as Centrostephanus Peters, 1855 (subjective junior synonym of Centrostephanus)
19. Genus Trichodiadema accepted as Thrichodiadema A. Agassiz, 1863 accepted as Centrostephanus Peters, 1855 (misspelling)

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