Aporocidaris antarctica Mortensen, 1909 (basis of record)
Aporocidaris fragilis A. Agassiz & H.L. Clark, 1907 (basis of record)
Aporocidaris milleri (A. Agassiz, 1898) (basis of record)
Austrocidaris canaliculata (A. Agassiz, 1863) (basis of record)
Austrocidaris spinulosa Mortensen, 1910 (basis of record)
Calocidaris micans (Mortensen, 1903) (basis of record)
Centrocidaris doederleini (A. Agassiz, 1898) (basis of record)
Cidaris abyssicola (A. Agassiz, 1869) (basis of record)
Cidaris blakei (A. Agassiz, 1878) (basis of record)
Cidaris cidaris (Linnaeus, 1758) (additional source)
Cidaris nuda (Mortensen, 1903) (basis of record)
Cidaris rugosa (H.L. Clark, 1907) (basis of record)
Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) (basis of record)
Ctenocidaris geliberti (Koehler, 1912) (basis of record)
Ctenocidaris perrieri Koehler, 1912 (basis of record)
Ctenocidaris rugosa (Koehler, 1926) (basis of record)
Ctenocidaris speciosa Mortensen, 1910 (basis of record)
Ctenocidaris spinosa (Koehler, 1926) (basis of record)
Dorocidaris blakei A. Agassiz, 1878 accepted as Cidaris blakei (A. Agassiz, 1878) (basis of record)
Dorocidaris rugosa H.L. Clark, 1907 accepted as Cidaris rugosa (H.L. Clark, 1907) (basis of record)
Eucidaris metularia (Lamarck, 1816) (basis of record)
Eucidaris tribuloides (Lamarck, 1816) (basis of record)
Eucidaris tribuloides (Lamarck, 1816) (redescription)
Goniocidaris (Cyrtocidaris) tenuispina Mortensen, 1927 (basis of record)
Goniocidaris (Cyrtocidaris) tenuispina major Mortensen, 1927 (status source)
Goniocidaris (Cyrtocidaris) tenuispina tuberculata Mortensen, 1927 (status source)
Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) (basis of record)
Goniocidaris (Petalocidaris) florigera A. Agassiz, 1879 (basis of record)
Histocidaris acutispina Mortensen, 1927 (basis of record)
Histocidaris cobosi (A. Agassiz, 1898) (basis of record)
Histocidaris crassispina Mortensen, 1928 (basis of record)
Histocidaris denticulata Koehler, 1927 (basis of record)
Histocidaris elegans (A. Agassiz, 1879) (basis of record)
Histocidaris magnifica Mortensen, 1928 (basis of record)
Histocidaris nuttingi Mortensen, 1926 (basis of record)
Histocidaris purpurata (Thomson, 1872) (redescription)
Histocidaris recurvata Mortensen, 1928 (basis of record)
Histocidaris sharreri (A. Agassiz, 1880) (basis of record)
Histocidaris variabilis (A. Agassiz & H.L. Clark, 1907) (basis of record)
Homalocidaris gigantea (H.L. Clark, 1925) (basis of record)
Notocidaris gaussensis Mortensen, 1909 (basis of record)
Notocidaris hastata Mortensen, 1909 (basis of record)
Notocidaris mortenseni (Koehler, 1900) (basis of record)
Notocidaris platyacantha (H.L. Clark, 1925) (basis of record)
Parocidaris accepted as Porocidaris Desor, 1855 † (additional source)
Parocidaris purpurata accepted as Histocidaris purpurata (Thomson, 1872) (basis of record)
Poriocidaris purpurata (Thomson, 1872) accepted as Histocidaris purpurata (Thomson, 1872) (additional source)
Porocidaris cobosi A. Agassiz, 1898 accepted as Histocidaris cobosi (A. Agassiz, 1898) (basis of record)
Porocidaris elegans A. Agassiz, 1879 accepted as Histocidaris elegans (A. Agassiz, 1879) (basis of record)
Porocidaris purpurata Thomson, 1872 accepted as Histocidaris purpurata (Thomson, 1872) (additional source)
Porocidaris sharreri A. Agassiz, 1880 accepted as Histocidaris sharreri (A. Agassiz, 1880) (basis of record)
Porocidaris variabilis A. Agassiz & H.L. Clark, 1907 accepted as Histocidaris variabilis (A. Agassiz & H.L. Clark, 1907) (basis of record)
Prionocidaris hawaiiensis (A. Agassiz & H.L. Clark, 1907) (basis of record)
Psilocidaris echinulata Mortensen, 1927 (basis of record)
Rhopalocidaris rosea Mortensen, 1928 (basis of record)
Rhynchocidaris triplopora (Mortensen, 1909) (basis of record)
Stephanocidaris hawaiiensis A. Agassiz & H.L. Clark, 1907 accepted as Prionocidaris hawaiiensis (A. Agassiz & H.L. Clark, 1907) (basis of record)
Stereocidaris capensis Döderlein, 1901 (basis of record)
Stereocidaris grandis (Döderlein, 1885) (basis of record)
Stereocidaris granularis Mortensen, 1928 (basis of record)
Stereocidaris granularis rubra Mortensen, 1927 (basis of record)
Stereocidaris hawaiiensis Mortensen, 1928 (basis of record)
Stereocidaris indica Döderlein, 1901 (basis of record)
Stereocidaris ingolfiana Mortensen, 1903 (additional source)
Stereocidaris leucacantha A. Agassiz & H.L. Clark, 1907 (basis of record)
Stereocidaris microtuberculata (Yoshiwara, 1898) (basis of record)
Stereocidaris sceptriferoides (Döderlein, 1887) (basis of record)
Stylocidaris affinis (Philippi, 1845) (additional source)
Stylocidaris effluens Mortensen, 1927 (basis of record)
Stylocidaris lineata Mortensen, 1910 (basis of record)
Stylocidaris maculosa Mortensen, 1928 (basis of record)
Stylocidaris reini (Döderlein, 1887) (basis of record)
Tretocidaris bartletti (A. Agassiz, 1880) (basis of record)

Antarctic 200NM zone beyond the coastline for Aporocidaris milleri (A. Agassiz, 1898) 
Antarctic 200NM zone beyond the coastline for Ctenocidaris perrieri Koehler, 1912 
Antarctic Ocean for Ctenocidaris perrieri Koehler, 1912 
Antarctic Ocean for Ctenocidaris rugosa (Koehler, 1926) 
Antarctic Ocean for Ctenocidaris rugosa (Koehler, 1926) 
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) 
Antarctic Ocean for Notocidaris mortenseni (Koehler, 1900) 
Antarctic Ocean for Rhynchocidaris triplopora (Mortensen, 1909) 
Antarctic Ocean for Rhynchocidaris triplopora (Mortensen, 1909) 
Australian Exclusive Economic Zone for Histocidaris crassispina Mortensen, 1928 
Bay of Bengal for Histocidaris denticulata Koehler, 1927 
Bay of Biscay for Histocidaris elegans (A. Agassiz, 1879)  (inaccurate)
Burdwood Bank for Austrocidaris canaliculata (A. Agassiz, 1863) 
Coulman Island for Homalocidaris gigantea (H.L. Clark, 1925) 
Crozet Islands Exclusive Economic Zone for Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) 
East African Coral Coast for Histocidaris elegans (A. Agassiz, 1879)  (inaccurate)
Eastern Channel for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 
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 Histocidaris cobosi (A. Agassiz, 1898) 
Galapagos Islands  for Aporocidaris milleri (A. Agassiz, 1898) 
Graham Island for Ctenocidaris speciosa Mortensen, 1910 
Havana for Histocidaris nuttingi Mortensen, 1926 
Hawaiian Exclusive Economic Zone for Histocidaris variabilis (A. Agassiz & H.L. Clark, 1907) 
Heard Island for Ctenocidaris (Eurocidaris) nutrix (Thomson, 1876) 
Icelandic Exclusive Economic Zone for Poriocidaris purpurata (Thomson, 1872) 
Indian Ocean for Poriocidaris purpurata (Thomson, 1872)  (doubtful)
Indonesian Exclusive Economic Zone for Goniocidaris (Petalocidaris) florigera A. Agassiz, 1879  (doubtful)
Japanese Sea for Histocidaris elegans (A. Agassiz, 1879) 
Kagoshima Bay for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 
Kei Islands for Goniocidaris (Petalocidaris) florigera A. Agassiz, 1879 
Kei Islands for Goniocidaris (Petalocidaris) florigera A. Agassiz, 1879 
Kei Islands for Histocidaris recurvata Mortensen, 1928 
Korea Strait for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 
Leyte for Histocidaris acutispina Mortensen, 1927 
Magellan Strait for Austrocidaris canaliculata (A. Agassiz, 1863) 
Marguerite Bay for Ctenocidaris geliberti (Koehler, 1912) 
Mindanao  for Histocidaris acutispina Mortensen, 1927 
Molucca Sea for Histocidaris elegans (A. Agassiz, 1879) 
Nevis for Histocidaris sharreri (A. Agassiz, 1880) 
New South Wales for Histocidaris elegans (A. Agassiz, 1879) 
New Zealand Exclusive Economic Zone for Histocidaris elegans (A. Agassiz, 1879)  (inaccurate)
Nias Island for Histocidaris denticulata Koehler, 1927 
North Atlantic for Poriocidaris purpurata (Thomson, 1872) 
Pacific Ocean for Aporocidaris antarctica Mortensen, 1909 
Panama Canal for Aporocidaris milleri (A. Agassiz, 1898) 
Philippine Sea for Histocidaris elegans (A. Agassiz, 1879) 
Philippines Exclusive Economic Zone for Histocidaris magnifica Mortensen, 1928 
Rio de la Plata for Austrocidaris canaliculata (A. Agassiz, 1863)  (doubtful)
Ross Sea for Ctenocidaris perrieri Koehler, 1912 
Sagami Bay for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 
Shag Rocks for Ctenocidaris speciosa Mortensen, 1910 
Shumagin Islands for Aporocidaris fragilis A. Agassiz & H.L. Clark, 1907 
South Georgian and the South Sandwich Islands Exclusive Economic Zone for Ctenocidaris speciosa Mortensen, 1910 
Suruga Bay for Goniocidaris (Petalocidaris) biserialis (Döderlein, 1885) 

 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]