1. Species Cidaris abyssicola (A. Agassiz, 1869)
2. Species Cidaris blakei (A. Agassiz, 1878)
3. Species Cidaris cidaris (Linnaeus, 1758)
4. Species Cidaris mabahissae Mortensen, 1939
5. Species Cidaris nuda (Mortensen, 1903)
6. Species Cidaris rugosa (H.L. Clark, 1907)
7. Subgenus Cidaris (Cidaris) Leske, 1778 accepted as Cidaris Leske, 1778 (accepted at genus rank)
   1. Species Cidaris (Cidaris) baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (transferred to Prionocidaris)
   2. Species Cidaris (Cidaris) glandulosa De Meijere, 1904 accepted as Prionocidaris glandulosa (De Meijere, 1904) (transferred to Prionocidaris)
   3. Species Cidaris (Cidaris) maculicollis (de Meijere, 1904) accepted as Acanthocidaris maculicollis (de Meijere, 1904) (subjective junior synonym)
   4. Species Cidaris (Cidaris) verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (transferred to Plococidaris)
8. Subgenus Cidaris (Diadema) Gray, 1825 accepted as Diadema Gray, 1825 (accepted at genus rank)
   1. Species Cidaris (Diadema) antillarum Philippi, 1845 accepted as Diadema antillarum (Philippi, 1845) (transferred to Diadema)
   2. Species Cidaris (Diadema) longispina Philippi, 1845 accepted as Centrostephanus longispinus (Philippi, 1845) (transferred to Centrostephanus)
   3. Species Cidaris (Diadema) tenuispina Philippi, 1845 accepted as Diadema setosum (Leske, 1778) (subjective junior synonym)
9. Subgenus Cidaris (Discocidaris) Döderlein, 1885 accepted as Goniocidaris (Discocidaris) Döderlein, 1885 (transferred to Goniocidaris)
   1. Species Cidaris (Discocidaris) hirsutispina de Meijere, 1904 accepted as Rhopalocidaris hirsutispina (de Meijere, 1904) (transferred to Rhopalocidaris)
   2. Species Cidaris (Discocidaris) hirsutispinus de Meijere, 1904 accepted as Cidaris (Discocidaris) hirsutispina de Meijere, 1904 accepted as Rhopalocidaris hirsutispina (de Meijere, 1904) (incorrect declination of specific name)
10. Subgenus Cidaris (Dorocidaris) A. Agassiz, 1869 accepted as Cidaris Leske, 1778 (objective junior synonym)
    1. Species Cidaris (Dorocidaris) metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (transferred to Eucidaris)
    2. Species Cidaris (Dorocidaris) papillata Leske, 1778 accepted as Cidaris cidaris (Linnaeus, 1758) (subjective junior synonym)
    3. Species Cidaris (Dorocidaris) reini Döderlein, 1887 accepted as Stylocidaris reini (Döderlein, 1887) (transferred to Stylocidaris)
11. Subgenus Cidaris (Eucidaris) Pomel, 1883 accepted as Eucidaris Pomel, 1883 (accepted at genus rank)
    1. Species Cidaris (Eucidaris) galapagensis Döderlein, 1887 accepted as Eucidaris galapagensis Döderlein, 1887 (unaccepted > superseded combination)
    2. Species Cidaris (Eucidaris) metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (transferred to Eucidaris)
    3. Species Cidaris (Eucidaris) thouarsii (L. Agassiz & Desor, 1846) accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (transferred to Eucidaris)
12. Subgenus Cidaris (Goniocidaris) Desor in L. Agassiz & Desor, 1846 accepted as Goniocidaris Desor in Agassiz & Desor, 1846 (accepted at genus rank)
    1. Species Cidaris (Goniocidaris) biserialis (Döderlein, 1885) accepted as Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) (transferred to Goniocidaris (Petalocidaris))
    2. Species Cidaris (Goniocidaris) clypeata Döderlein, 1885 accepted as Goniocidaris (Aspidocidaris) clypeata Döderlein, 1885 (transferred to Goniocidaris (Aspidocidaris))
    3. Species Cidaris (Goniocidaris) mikado (Döderlein, 1885) accepted as Goniocidaris (Discocidaris) mikado (Döderlein, 1885) (transferred to Goniocidaris (Discocidaris))
13. Subgenus Cidaris (Gymnocidaris) A. Agassiz, 1863 accepted as Eucidaris Pomel, 1883 (junior homonym of Gymnocidaris L. Agassiz, 1838)
    1. Species Cidaris (Gymnocidaris) metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (transferred to Eucidaris)
    2. Species Cidaris (Gymnocidaris) thouarsii (L. Agassiz & Desor, 1846) accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (transferred to Eucidaris)
    3. Species Cidaris (Gymnocidaris) tribuloides (Lamarck, 1816) accepted as Eucidaris tribuloides (Lamarck, 1816) (transferred to Eucidaris)
14. Subgenus Cidaris (Histocidaris) Mortensen, 1903 accepted as Histocidaris Mortensen, 1903 (accepted at genus rank)
    1. Species Cidaris (Histocidaris) elegans (A. Agassiz, 1879) accepted as Histocidaris elegans (A. Agassiz, 1879) (transferred to Histocidaris)
15. Subgenus Cidaris (Leiocidaris) Desor, 1855 accepted as Phyllacanthus Brandt, 1835 (subjective junior synonym)
    1. Species Cidaris (Leiocidaris) baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (transferred to Prionocidaris)
    2. Species Cidaris (Leiocidaris) dubia (Brandt, 1835) accepted as Phyllacanthus dubius (Brandt, 1835) (transferred to Phyllacanthus)
    3. Species Cidaris (Leiocidaris) verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (transferred to Plococidaris)
16. Subgenus Cidaris (Petalocidaris) Mortensen, 1903 accepted as Goniocidaris (Petalocidaris) Mortensen, 1903 (transferred to Goniocidaris)
    1. Species Cidaris (Petalocidaris) fimbriata de Meijere, 1904 accepted as Goniocidaris (Aspidocidaris) fimbriata (de Meijere, 1904) (transferred to Goniocidaris (Aspidocidaris))
17. Subgenus Cidaris (Phyllacanthus) Brandt, 1835 accepted as Phyllacanthus Brandt, 1835 (accepted at genus rank)
    1. Species Cidaris (Phyllacanthus) dubia (Brandt, 1835) accepted as Phyllacanthus dubius (Brandt, 1835) (transferred to Phyllacanthus)
    2. Species Cidaris (Phyllacanthus) imperialis (Lamarck, 1816) accepted as Phyllacanthus imperialis (Lamarck, 1816) (transferred to Phyllacanthus)
18. Subgenus Cidaris (Stephanocidaris) A. Agassiz, 1863 accepted as Goniocidaris Desor in Agassiz & Desor, 1846 (objective junior synonym)
    1. Species Cidaris (Stephanocidaris) bispinosa (Lamarck, 1816) accepted as Prionocidaris bispinosa (Lamarck, 1816) (transferred to Prionocidaris)
    2. Species Cidaris (Stephanocidaris) cidaris Linnaeus, 1758 accepted as Cidaris cidaris (Linnaeus, 1758)
    3. Species Cidaris (Stephanocidaris) verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (transferred to Plococidaris)
19. Subgenus Cidaris (Stereocidaris) Pomel, 1883 accepted as Stereocidaris Pomel, 1883 (accepted at genus rank)
    1. Species Cidaris (Stereocidaris) japonica (Döderlein, 1885) accepted as Phalacrocidaris japonica (Döderlein, 1885) (transferred to Phalacrocidaris)
    2. Species Cidaris (Stereocidaris) microtuberculatus Yoshiwara, 1898 accepted as Stereocidaris microtuberculata (Yoshiwara, 1898) (transferred to Stereocidaris)
    3. Species Cidaris (Stereocidaris) sceptriferoides Döderlein, 1887 accepted as Stereocidaris sceptriferoides (Döderlein, 1887) (transferred to Stereocidaris)
    4. Species Cidaris (Stereocidaris) tenuispinus Yoshiwara, 1898 accepted as Phalacrocidaris japonica (Döderlein, 1885) (subjective junior synonym)
20. Species Cidaris affinis Philippi, 1845 accepted as Stylocidaris affinis (Philippi, 1845) (transferred to Stylocidaris)
21. Species Cidaris angulosa Leske, 1778 accepted as Tripneustes gratilla (Linnaeus, 1758) (subjective junior synonym)
22. Species Cidaris angulosus Leske, 1778 accepted as Parechinus angulosus (Leske, 1778) (transferred to Parechinus)
23. Species Cidaris annulata Gray, 1855 accepted as Eucidaris tribuloides (Lamarck, 1816) (subjective junior synonym)
24. Species Cidaris araneiformis Leske, 1778 accepted as Echinothrix diadema (Linnaeus, 1758) (subjective junior synonym)
25. Species Cidaris atratus (Linnaeus, 1758) accepted as Podophora atrata (Linnaeus, 1758) accepted as Colobocentrotus (Podophora) atratus (Linnaeus, 1758) (transferred to Podophora)
26. Species Cidaris baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (transferred to Prionocidaris)
27. Species Cidaris benhami (Mortensen, 1921) accepted as Ogmocidaris benhami Mortensen, 1921 (unaccepted combination)
28. Species Cidaris borealis Düben, 1844 accepted as Cidaris cidaris (Linnaeus, 1758) (subjective junior synonym)
29. Species Cidaris calamaria (Pallas, 1774) accepted as Echinothrix calamaris (Pallas, 1774) (transferred to Echinothrix)
30. Species Cidaris calamaris (Pallas, 1774) accepted as Echinothrix calamaris (Pallas, 1774) (subjective junior synonym)
31. Species Cidaris callao Perrier, 1869 accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (subjective junior synonym)
32. Species Cidaris canaliculata (A. Agassiz, 1863) accepted as Austrocidaris canaliculata (A. Agassiz, 1863) (unaccepted combination)
33. Species Cidaris circinata von Martens, 1866 (unaccepted > nomen nudum, von Martens refers to a specimen named C. circinata in the Amsterdam coll'n, but does not describe it)
34. Species Cidaris circinnata accepted as Cidaris circinata von Martens, 1866 (misspelling)
35. Species Cidaris conferta H.L. Clark, 1916 accepted as Stylocidaris conferta (H.L. Clark, 1916) (transferred to Stylocidaris)
36. Species Cidaris coronalis Leske, 1778 accepted as Echinothrix diadema (Linnaeus, 1758) (subjective junior synonym)
37. Species Cidaris curvatispinis Bell, 1892 accepted as Acanthocidaris curvatispinis (Bell, 1892)
38. Species Cidaris danae L. Agassiz in L. Agassiz & Desor, 1846 accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (subjective junior synonym)
39. Species Cidaris esculenta (Linnaeus, 1758) accepted as Echinus esculentus Linnaeus, 1758 (unaccepted combination)
40. Species Cidaris fenestrata Leske, 1778 accepted as Echinometra lucunter (Linnaeus, 1758) (subjective junior synonym)
41. Species Cidaris fustigera (A. Agassiz, 1963) accepted as Phyllacanthus imperialis (Lamarck, 1816) (unaccepted combination)
42. Species Cidaris gracilis (Sladen, 1890) accepted as Histocidaris purpurata (Thomson, 1872) (subjective junior synonym)
43. Species Cidaris granulata Leske, 1778 accepted as Mespilia globulus (Linnaeus, 1758) (subjective junior synonym)
44. Species Cidaris hemisphaerica Leske, 1778 accepted as Echinus esculentus Linnaeus, 1758 (subjective junior synonym)
45. Species Cidaris histrix (Lamarck, 1816) accepted as Cidaris cidaris (Linnaeus, 1758) (spelling variant)
46. Species Cidaris hystrix (Lamarck, 1816) accepted as Cidaris cidaris (Linnaeus, 1758) (subjective junior synonym)
47. Species Cidaris imperialis (Lamarck, 1816) accepted as Phyllacanthus imperialis (Lamarck, 1816) (transferred to Phyllacanthus)
48. Species Cidaris krohnii L. Agassiz in L. Agassiz & Desor, 1846 accepted as Prionocidaris baculosa (Lamarck, 1816) (subjective junior synonym)
49. Species Cidaris lima Valenciennes, 1847 accepted as Prionocidaris baculosa (Lamarck, 1816) (subjective junior synonym)
50. Species Cidaris lucunter (Linnaeus, 1758) accepted as Echinometra lucunter (Linnaeus, 1758) (transferred to Echinometra)
51. Species Cidaris lütkeni De Loriol, 1873 accepted as Prionocidaris bispinosa (Lamarck, 1816) (subjective junior synonym)
52. Species Cidaris mammillata (Linnaeus, 1758) accepted as Heterocentrotus mamillatus (Linnaeus, 1758) (transferred to Heterocentrotus)
53. Species Cidaris mauri Lambert & Thiéry, 1910 accepted as Eucidaris metularia (Lamarck, 1816) (subjective junior synonym)
54. Species Cidaris membranipora (Studer, 1876) accepted as Eurocidaris nutrix (Thomson, 1876) accepted as Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) (subjective junior synonym)
55. Species Cidaris metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816)
56. Species Cidaris microtuberculata Yoshiwara, 1898 accepted as Stereocidaris microtuberculata (Yoshiwara, 1898) (transferred to Stereocidaris)
57. Species Cidaris minor Koehler, 1908 accepted as Eucidaris tribuloides (Lamarck, 1816) (subjective junior synonym)
58. Species Cidaris nutrix Thomson, 1876 accepted as Eurocidaris nutrix (Thomson, 1876) accepted as Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) (transferred to Eurocidaris)
59. Species Cidaris ornata Gray, 1855 accepted as Prionocidaris baculosa (Lamarck, 1816) (subjective junior synonym)
60. Species Cidaris papillata Leske, 1778 accepted as Cidaris cidaris (Linnaeus, 1758) (subjective junior synonym)
61. Species Cidaris parvispinis (Tension Woods, 1878) accepted as Phyllacanthus parvispinus Tenison-Woods, 1878 (transferred to Phyllacanthus)
62. Species Cidaris pistillaris (Lamarck, 1816) accepted as Prionocidaris pistillaris (Lamarck, 1816) (transferred to Prionocidaris)
63. Species Cidaris purpurata (Thomson, 1872) accepted as Histocidaris purpurata (Thomson, 1872) (transferred to Histocidaris)
64. Species Cidaris pustulosa Leske, 1778 accepted as Arbacia lixula (Linnaeus, 1758) (subjective junior synonym)
65. Species Cidaris radiata Leske, 1778 accepted as Astropyga radiata (Leske, 1778) (transferred to Astropyga)
66. Species Cidaris reini Döderlein, 1887 accepted as Stylocidaris reini (Döderlein, 1887) (transferred to Stylocidaris)
67. Species Cidaris rosaceus Rousseu in Perrier, 1869 accepted as Prionocidaris bispinosa (Lamarck, 1816) (possible subjective junior synonym)
68. Species Cidaris sardica Leske, 1778 accepted as Sphaerechinus granularis (Lamarck, 1816) (subjective junior synonym)
69. Species Cidaris spinulosa Gray, 1855 accepted as Goniocidaris (Goniocidaris) tubaria (Lamarck, 1816) (subjective junior synonym)
70. Species Cidaris stokesii L. Agassiz in L. Agassiz & Desor, 1846 accepted as Stylocidaris affinis (Philippi, 1845) (subjective junior synonym)
71. Species Cidaris subangularis Leske, 1778 accepted as Echinometra lucunter (Linnaeus, 1758) (subjective junior synonym)
72. Species Cidaris tenuispina Yoshiwara, 1898 accepted as Phalacrocidaris japonica (Döderlein, 1885) (subjective junior synonym)
73. Species Cidaris tenuispinus Yoshiwara, 1898 accepted as Cidaris tenuispina Yoshiwara, 1898 accepted as Phalacrocidaris japonica (Döderlein, 1885) (incorrect declination of species name)
74. Species Cidaris thouarsii L. Agassiz & Desor, 1846 accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (transferred to Eucidaris)
75. Species Cidaris toreumatica Klein, 1734 accepted as Temnopleurus toreumaticus (Leske, 1778) (pre-Linnean)
76. Species Cidaris tribuloides (Lamarck, 1816) accepted as Eucidaris tribuloides (Lamarck, 1816) (transferred to Eucidaris)
77. Species Cidaris tubaria (Lamarck, 1816) accepted as Goniocidaris (Goniocidaris) tubaria (Lamarck, 1816) (transferred to Goniocidaris)
78. Species Cidaris variegata Leske, 1778 accepted as Tripneustes gratilla (Linnaeus, 1758) (subjective junior synonym)
79. Species Cidaris verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (transferred to Plococidaris)

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