Acanthocidaris curvatispinis (Bell, 1892) (basis of record)
Acanthocidaris hastigera A. Agassiz & H.L. Clark, 1907 (basis of record)
Acanthocidaris maculicollis (de Meijere, 1904) (basis of record)
Actinocidaris thomasi (A. Agassiz & H.L. Clark, 1907) accepted as Prionocidaris thomasi (A. Agassiz & H.L. Clark, 1907) (basis of record)
Anomocidaris japonica (Döderlein, 1885) accepted as Phalacrocidaris japonica (Döderlein, 1885) (basis of record)
Anomocidaris tenuispina (Yoshiwara, 1898) accepted as Phalacrocidaris japonica (Döderlein, 1885) (basis of record)
Aporocidaris antarctica Mortensen, 1909 (basis of record)
Aporocidaris fragilis A. Agassiz & H.L. Clark, 1907 (basis of record)
Aporocidaris incerta (Koehler, 1902) (basis of record)
Aporocidaris milleri (A. Agassiz, 1898) (basis of record)
Austrocidaris canaliculata (A. Agassiz, 1863) (basis of record)
Austrocidaris canaliculata var. lorioli (Mortensen, 1903) accepted as Austrocidaris lorioli (Mortensen, 1903) (status source)
Austrocidaris gigantea H.L. Clark, 1925 accepted as Homalocidaris gigantea (H.L. Clark, 1925) (basis of record)
Austrocidaris mortenseni (Koehler, 1900) accepted as Notocidaris mortenseni (Koehler, 1900) (basis of record)
Austrocidaris nutrix (Thomson, 1876) accepted as Eurocidaris nutrix (Thomson, 1876) accepted as Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) (basis of record)
Austrocidaris platyacantha H.L. Clark, 1925 accepted as Notocidaris platyacantha (H.L. Clark, 1925) (basis of record)
Austrocidaris spinulosa Mortensen, 1910 (basis of record)
Calocidaris micans (Mortensen, 1903) (basis of record)
Centrocidaris canaliculata (A. Agassiz, 1863) accepted as Austrocidaris canaliculata (A. Agassiz, 1863) (basis of record)
Centrocidaris doederleini (A. Agassiz, 1898) (basis of record)
Chondrocidaris brevispina H.L. Clark, 1925 (basis of record)
Chondrocidaris gigantea A. Agassiz, 1863 (basis of record)
Cidarina Gray, 1825 accepted as Cidarinae Mortensen, 1928 accepted as Cidarinae Gray, 1825 (basis of record)
Cidaris (Cidaris) baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris (Cidaris) baculosa brevicollis de Meijere, 1904 accepted as Stylocidaris brevicollis (de Meijere, 1904) (basis of record)
Cidaris (Cidaris) glandulosa De Meijere, 1904 accepted as Prionocidaris glandulosa (De Meijere, 1904) (basis of record)
Cidaris (Cidaris) maculicollis (de Meijere, 1904) accepted as Acanthocidaris maculicollis (de Meijere, 1904) (basis of record)
Cidaris (Cidaris) verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (basis of record)
Cidaris (Discocidaris) hirsutispina de Meijere, 1904 accepted as Rhopalocidaris hirsutispina (de Meijere, 1904) (basis of record)
Cidaris (Dorocidaris) metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (basis of record)
Cidaris (Dorocidaris) papillata Leske, 1778 accepted as Cidaris cidaris (Linnaeus, 1758) (basis of record)
Cidaris (Dorocidaris) reini Döderlein, 1887 accepted as Stylocidaris reini (Döderlein, 1887) (basis of record)
Cidaris (Eucidaris) galapagensis Döderlein, 1887 accepted as Eucidaris galapagensis Döderlein, 1887 (basis of record)
Cidaris (Eucidaris) metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (basis of record)
Cidaris (Eucidaris) thouarsii (L. Agassiz & Desor, 1846) accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (basis of record)
Cidaris (Goniocidaris) biserialis (Döderlein, 1885) accepted as Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) (basis of record)
Cidaris (Goniocidaris) clypeata Döderlein, 1885 accepted as Goniocidaris (Aspidocidaris) clypeata Döderlein, 1885 (basis of record)
Cidaris (Goniocidaris) mikado (Döderlein, 1885) accepted as Goniocidaris (Discocidaris) mikado (Döderlein, 1885) (basis of record)
Cidaris (Gymnocidaris) metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (basis of record)
Cidaris (Gymnocidaris) thouarsii (L. Agassiz & Desor, 1846) accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (basis of record)
Cidaris (Gymnocidaris) tribuloides (Lamarck, 1816) accepted as Eucidaris tribuloides (Lamarck, 1816) (basis of record)
Cidaris (Histocidaris) elegans (A. Agassiz, 1879) accepted as Histocidaris elegans (A. Agassiz, 1879) (basis of record)
Cidaris (Leiocidaris) baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris (Leiocidaris) dubia (Brandt, 1835) accepted as Phyllacanthus dubius (Brandt, 1835) (basis of record)
Cidaris (Leiocidaris) verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (basis of record)
Cidaris (Petalocidaris) fimbriata de Meijere, 1904 accepted as Goniocidaris (Aspidocidaris) fimbriata (de Meijere, 1904) (basis of record)
Cidaris (Phyllacanthus) dubia (Brandt, 1835) accepted as Phyllacanthus dubius (Brandt, 1835) (basis of record)
Cidaris (Phyllacanthus) imperialis (Lamarck, 1816) accepted as Phyllacanthus imperialis (Lamarck, 1816) (basis of record)
Cidaris (Porocidaris) misakiensis Yoshiwara, 1898 accepted as Histocidaris misakiensis (Yoshiwara, 1898) (basis of record)
Cidaris (Rhabdocidaris) baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris (Stephanocidaris) bispinosa (Lamarck, 1816) accepted as Prionocidaris bispinosa (Lamarck, 1816) (basis of record)
Cidaris (Stephanocidaris) cidaris australis (Ramsay, 1885) accepted as Prionocidaris australis (Ramsay, 1885) (basis of record)
Cidaris (Stephanocidaris) verticillata (Lamarck, 1816) accepted as Plococidaris verticillata (Lamarck, 1816) (basis of record)
Cidaris (Stereocidaris) japonica (Döderlein, 1885) accepted as Phalacrocidaris japonica (Döderlein, 1885) (basis of record)
Cidaris (Stereocidaris) microtuberculatus Yoshiwara, 1898 accepted as Stereocidaris microtuberculata (Yoshiwara, 1898) (basis of record)
Cidaris (Stereocidaris) sceptriferoides Döderlein, 1887 accepted as Stereocidaris sceptriferoides (Döderlein, 1887) (basis of record)
Cidaris (Stereocidaris) tenuispinus Yoshiwara, 1898 accepted as Phalacrocidaris japonica (Döderlein, 1885) (basis of record)
Cidaris abyssicola (A. Agassiz, 1869) (basis of record)
Cidaris affinis Philippi, 1845 accepted as Stylocidaris affinis (Philippi, 1845) (additional source)
Cidaris annulata Gray, 1855 accepted as Eucidaris tribuloides (Lamarck, 1816) (basis of record)
Cidaris baculosa (Lamarck, 1816) accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris benhami (Mortensen, 1921) accepted as Ogmocidaris benhami Mortensen, 1921 (basis of record)
Cidaris blakei (A. Agassiz, 1878) (basis of record)
Cidaris borealis Düben, 1844 accepted as Cidaris cidaris (Linnaeus, 1758) (additional source)
Cidaris callao Perrier, 1869 accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (basis of record)
Cidaris cidaris (Linnaeus, 1758) (additional source)
Cidaris cidaris meridionalis Mortensen, 1928 (status source)
Cidaris circinnata accepted as Cidaris circinata von Martens, 1866 (basis of record)
Cidaris conferta H.L. Clark, 1916 accepted as Stylocidaris conferta (H.L. Clark, 1916) (basis of record)
Cidaris curvatispinis Bell, 1892 accepted as Acanthocidaris curvatispinis (Bell, 1892) (basis of record)
Cidaris danae L. Agassiz in L. Agassiz & Desor, 1846 accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (basis of record)
Cidaris gracilis (Sladen, 1890) accepted as Histocidaris purpurata (Thomson, 1872) (basis of record)
Cidaris histrix (Lamarck, 1816) accepted as Cidaris cidaris (Linnaeus, 1758) (basis of record)
Cidaris hystrix (Lamarck, 1816) accepted as Cidaris cidaris (Linnaeus, 1758) (basis of record)
Cidaris imperialis (Lamarck, 1816) accepted as Phyllacanthus imperialis (Lamarck, 1816) (basis of record)
Cidaris imperialis fustigera (A. Agassiz, 1863) accepted as Phyllacanthus imperialis (Lamarck, 1816) (basis of record)
Cidaris krohnii L. Agassiz in L. Agassiz & Desor, 1846 accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris lima Valenciennes, 1847 accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris lütkeni De Loriol, 1873 accepted as Prionocidaris bispinosa (Lamarck, 1816) (basis of record)
Cidaris mauri Lambert & Thiéry, 1910 accepted as Eucidaris metularia (Lamarck, 1816) (basis of record)
Cidaris membranipora (Studer, 1876) accepted as Eurocidaris nutrix (Thomson, 1876) accepted as Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) (basis of record)
Cidaris metularia (Lamarck, 1816) accepted as Eucidaris metularia (Lamarck, 1816) (basis of record)
Cidaris microtuberculata Yoshiwara, 1898 accepted as Stereocidaris microtuberculata (Yoshiwara, 1898) (basis of record)
Cidaris minor Koehler, 1908 accepted as Eucidaris tribuloides (Lamarck, 1816) (basis of record)
Cidaris nuda (Mortensen, 1903) (basis of record)
Cidaris nutrix Thomson, 1876 accepted as Eurocidaris nutrix (Thomson, 1876) accepted as Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) (basis of record)
Cidaris ornata Gray, 1855 accepted as Prionocidaris baculosa (Lamarck, 1816) (basis of record)
Cidaris papillata Leske, 1778 accepted as Cidaris cidaris (Linnaeus, 1758) (additional source)
Cidaris parvispinis (Tension Woods, 1878) accepted as Phyllacanthus parvispinus Tenison-Woods, 1878 (basis of record)
Cidaris pistillaris (Lamarck, 1816) accepted as Prionocidaris pistillaris (Lamarck, 1816) (basis of record)
Cidaris purpurata (Thomson, 1872) accepted as Histocidaris purpurata (Thomson, 1872) (basis of record)
Cidaris reini Döderlein, 1887 accepted as Stylocidaris reini (Döderlein, 1887) (basis of record)
Cidaris rosaceus Rousseu in Perrier, 1869 accepted as Prionocidaris bispinosa (Lamarck, 1816) (basis of record)
Cidaris rugosa (H.L. Clark, 1907) (basis of record)
Cidaris spinulosa Gray, 1855 accepted as Goniocidaris (Goniocidaris) tubaria (Lamarck, 1816) (basis of record)
Cidaris stokesii L. Agassiz in L. Agassiz & Desor, 1846 accepted as Stylocidaris affinis (Philippi, 1845) (additional source)
Cidaris tenuispina Yoshiwara, 1898 accepted as Phalacrocidaris japonica (Döderlein, 1885) (basis of record)
Cidaris tenuispinus Yoshiwara, 1898 accepted as Cidaris tenuispina Yoshiwara, 1898 accepted as Phalacrocidaris japonica (Döderlein, 1885) (basis of record)
Cidaris thouarsii L. Agassiz & Desor, 1846 accepted as Eucidaris thouarsii (L. Agassiz & Desor, 1846) (basis of record)
Cidaris tribuloides (Lamarck, 1816) accepted as Eucidaris tribuloides (Lamarck, 1816) (additional source)

Africa Coasts for Eucidaris tribuloides (Lamarck, 1816)  (inaccurate)
Africa Coasts for Histocidaris denticulata Koehler, 1927 
Africa Coasts for Stereocidaris indica var. philippinensis Mortensen, 1928 
Ambon Bay for Goniocidaris (Petalocidaris) spinosa Mortensen, 1928 
Ambon Bay for Stylocidaris amboinae Mortensen, 1928 
Ambon Bay for Stylocidaris bracteata (A. Agassiz, 1879) 
Ambon Bay for Stylocidaris brevicollis (de Meijere, 1904) 
Amirantes for Stylocidaris bracteata (A. Agassiz, 1879) 
Antarctic 200NM zone beyond the coastline for Aporocidaris milleri (A. Agassiz, 1898) 
Antarctic 200NM zone beyond the coastline for Ctenocidaris perrieri Koehler, 1912 
Antarctic Continent for Notocidaris platyacantha var. contracta Koehler, 1926 
Antarctic Ocean for Aporocidaris antarctica Mortensen, 1909 
Antarctic Ocean for Ctenocidaris perrieri Koehler, 1912 
Antarctic Ocean for Ctenocidaris rugosa (Koehler, 1926) 
Antarctic Ocean for Ctenocidaris spinosa (Koehler, 1926) 
Antarctic Ocean for Notocidaris Mortensen, 1909 
Antarctic Ocean for Notocidaris gaussensis Mortensen, 1909 
Antarctic Ocean for Notocidaris hastata Mortensen, 1909 
Antarctic Ocean for Notocidaris mortenseni (Koehler, 1900) 
Aru Islands for Goniocidarina Mortensen, 1928  (doubtful)
Ascension for Tretocidaris spinosa Mortensen, 1903 
Ascension Exclusive Economic Zone for Eucidaris metularia (Lamarck, 1816)  (inaccurate)
Ascension Exclusive Economic Zone for Eucidaris tribuloides (Lamarck, 1816)  (inaccurate)
Atlantic Ocean for Stylocidarinae Mortensen, 1903 
Australian Exclusive Economic Zone for Eucidaris metularia (Lamarck, 1816) 
Australian Exclusive Economic Zone for Goniocidarina Mortensen, 1928 
Australian Exclusive Economic Zone for Goniocidaris (Aspidocidaris) australiae Mortensen, 1928 
Australian Exclusive Economic Zone for Histocidaris crassispina Mortensen, 1928 
Australian Exclusive Economic Zone for Stylocidaris bracteata (A. Agassiz, 1879)  (doubtful)
Australian Exclusive Economic Zone for Stylocidaris conferta (H.L. Clark, 1916) 
Australian Exclusive Economic Zone for Stylocidaris reini var. rubida Mortensen, 1927 
Balleny Islands for Ctenocidaris perrieri Koehler, 1912 
Balleny Islands for Ctenocidaris speciosa Mortensen, 1910 
Bass Strait for Goniocidaris (Goniocidaris) tubaria impressa Koehler, 1926 
Bay of Bengal for Histocidaris denticulata Koehler, 1927 
Bay of Biscay for Histocidaris elegans (A. Agassiz, 1879)  (inaccurate)
Bonin for Stylocidaris maculosa Mortensen, 1928 
British Overseas Territories for Eucidaris clavata Mortensen, 1928 
Burdwood Bank for Austrocidaris canaliculata (A. Agassiz, 1863) 
Cape of Good Hope for Eucidaris metularia (Lamarck, 1816)  (inaccurate)
Cape Verde for Cidaris nuda (Mortensen, 1903) 
Cocos Island for Hesperocidaris panamensis (A. Agassiz, 1898) 
Cocos Islands Exclusive Economic Zone for Centrocidaris doederleini (A. Agassiz, 1898) 
Cook Strait for Goniocidaris (Goniocidaris) umbraculum Hutton, 1878 
Coulman Island for Ctenocidaris speciosa Mortensen, 1910 
Coulman Island for Homalocidaris gigantea (H.L. Clark, 1925) 
Coulman Island for Notocidaris platyacantha var. contracta Koehler, 1926 
Crozet Islands Exclusive Economic Zone for Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) 
Drake Passage for Aporocidaris incerta (Koehler, 1902) 
East African Coral Coast for Histocidaris elegans (A. Agassiz, 1879)  (inaccurate)
Eastern Channel for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 
Ecuadorean Exclusive Economic Zone for Hesperocidaris dubia (H.L. Clark, 1907) 
Ecuadorean Exclusive Economic Zone for Hesperocidaris panamensis (A. Agassiz, 1898) 
Falkland Islands part of the South Atlantic Ocean for Austrocidaris spinulosa Mortensen, 1910 
Faroe-Shetland Channel for Poriocidaris purpurata (Thomson, 1872) 
Galapagos Exclusive Economic Zone for Centrocidaris doederleini (A. Agassiz, 1898) 
Galapagos Exclusive Economic Zone for Eucidaris thouarsii galapagensis (Döderlein, 1887) 
Galapagos Exclusive Economic Zone for Histocidaris cobosi (A. Agassiz, 1898) 
Galapagos Islands  for Aporocidaris milleri (A. Agassiz, 1898) 
Graham Island for Ctenocidaris speciosa Mortensen, 1910 
Gulf of California for Hesperocidaris perplexa (H.L. Clark, 1907) 
Havana for Histocidaris nuttingi Mortensen, 1926 
Hawaiian Exclusive Economic Zone for Histocidaris variabilis (A. Agassiz & H.L. Clark, 1907) 
Hawaiian Exclusive Economic Zone for Stereocidaris hawaiiensis Mortensen, 1928 
Hawaiian Exclusive Economic Zone for Stereocidaris leucacantha A. Agassiz & H.L. Clark, 1907 
Hawaiian Islands for Acanthocidaris hastigera A. Agassiz & H.L. Clark, 1907 
Hawaiian Islands for Actinocidaris thomasi (A. Agassiz & H.L. Clark, 1907) 
Hawaiian Islands  for Stereocidaris grandis var. hyatorina Mortensen, 1928  (inaccurate)
Hawaiian Islands  for Stylocidaris calacantha (A. Agassiz & H.L. Clark, 1907) 
Hawaiian Islands  for Stylocidaris rufa Mortensen, 1928 
Heard Island for Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) 
Heard Island for Ctenocidaris nutrix var. longispina Mortensen, 1928 
Icelandic Exclusive Economic Zone for Poriocidaris purpurata (Thomson, 1872) 
Indian Ocean for Poriocidaris purpurata (Thomson, 1872)  (doubtful)
Indian Ocean for Stereocidaris indica Döderlein, 1901 
Indian Ocean for Stereocidaris indica var. philippinensis Mortensen, 1928 
Indian Ocean for Stylocidaris albidens H.L. Clark, 1925 
Indian Ocean for Stylocidaris brevicollis (de Meijere, 1904)  (doubtful)
Indian Ocean for Stylocidaris lorioli (Koehler, 1927) 
Indian Ocean for Stylocidaris tiara (Anderson, 1894) 
Indonesian Exclusive Economic Zone for Goniocidaris (Petalocidaris) florigera A. Agassiz, 1879  (doubtful)
Indonesian Exclusive Economic Zone for Rhopalocidaris hirsutispina (de Meijere, 1904) 
Indonesian Exclusive Economic Zone for Stereocidaris indica var. philippinensis Mortensen, 1928 
Indonesian Exclusive Economic Zone for Stereocidaris purpurascens Mortensen, 1928 
Indo-Pacific for Acanthocidaris Mortensen, 1903 
Indo-Pacific for Acanthocidaris maculicollis (de Meijere, 1904) 
Indo-Pacific for Eucidaris metularia (Lamarck, 1816) 
Indo-Pacific for Stylocidarinae Mortensen, 1903 
Italian Exclusive Economic Zone for Stylocidaris affinis (Philippi, 1845) 
Japanese Exclusive Economic Zone for Acanthocidaris maculicollis (de Meijere, 1904) 
Japanese Exclusive Economic Zone for Goniocidarina Mortensen, 1928 
Japanese Exclusive Economic Zone for Goniocidaris (Aspidocidaris) alba Mortensen, 1928 
Japanese Exclusive Economic Zone for Goniocidaris (Aspidocidaris) fimbriata (de Meijere, 1904)  (doubtful)
Japanese Exclusive Economic Zone for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 
Japanese Exclusive Economic Zone for Goniocidaris mikado (Döderlein, 1885) 
Japanese Exclusive Economic Zone for Goniocidaris mikado (Döderlein, 1885) 
Japanese Exclusive Economic Zone for Histocidaris carinata Mortensen, 1928 
Japanese Exclusive Economic Zone for Rhopalocidaris rosea Mortensen, 1928 
Japanese Exclusive Economic Zone for Stereocidaris (Phalacrocidaris) japonica (Döderlein, 1885) 
Japanese Exclusive Economic Zone for Stereocidaris microtuberculata (Yoshiwara, 1898) 

 Original description

 for Stylocidaris reini cladothrix Mortensen, 1927

This variety differs from the typical form only in the shape of the hairs on the primary spines, these being ... [details]

 Status

 for Cidaris circinata von Martens, 1866

Mortensen (1928b: p. 437, under the name C. circinnata), following A. Agassiz, tentatively considers this a junior ... [details]

 Status

 for Stereocidaris alcocki var. teretispina (Döderlein, 1906)

The var. teretispina Döderl. appears to differ from the typical Alcocki (tricarinata) only in its primary spines ... [details]

 Status

 for Stylocidaris fusispina Mortensen, 1928

Generic attribution tentative [details]