Austrocidaris gigantea H.L. Clark, 1925 accepted as Homalocidaris gigantea (H.L. Clark, 1925) (original description)
Austrocidaris platyacantha H.L. Clark, 1925 accepted as Notocidaris platyacantha (H.L. Clark, 1925) (original description)
Caenopedina superba H.L. Clark, 1925 (original description)
Chondrocidaris brevispina H.L. Clark, 1925 (original description)
Cionobrissus regularis H.L. Clark, 1925 accepted as Anametalia regularis (H.L. Clark, 1925) (original description)
Clypeaster miniaceus H.L. Clark, 1925 (original description)
Coenopedina accepted as Caenopedina A. Agassiz, 1869 (basis of record)
Echinocyamus crenulatus H.L. Clark, 1925 accepted as Heliophora orbiculus (Linnaeus, 1758) (original description)
Echinocyamus grandis H.L. Clark, 1925 (original description)
Echinolampas koreana H.L. Clark, 1925 (original description)
Echinoneus abruptus H.L. Clark, 1925 accepted as Echinoneus cyclostomus Leske, 1778 (original description)
Echinus multidentatus H.L. Clark, 1925 accepted as Gracilechinus multidentatus (H.L. Clark, 1925) (original description)
Gymnechinus abnormalis H.L. Clark, 1925 (original description)
Laganum centrale H.L. Clark, 1925 (original description)
Laganum mirabile H.L. Clark, 1925 accepted as Clypeaster rarispinus de Meijere, 1903 (original description)
Lytechinus variegatus pallida H.L. Clark, 1925 accepted as Lytechinus variegatus pallidus H.L. Clark, 1925 (original description)
Lytechinus variegatus var. pallida H.L. Clark, 1925 accepted as Lytechinus variegatus pallida H.L. Clark, 1925 accepted as Lytechinus variegatus pallidus H.L. Clark, 1925 (original description)
Mespilia globulus albida H.L. Clark, 1925 accepted as Mespilia globulus (Linnaeus, 1758) (original description)
Mespilia globulus var. albida H.L. Clark, 1925 accepted as Mespilia globulus albida H.L. Clark, 1925 accepted as Mespilia globulus (Linnaeus, 1758) (original description)
Mespilia globulus var. whitmaei Bell, 1881 accepted as Mespilia globulus (Linnaeus, 1758) (basis of record)
Metalia latissima H.L. Clark, 1925 (original description)
Micropyga nigra H.L. Clark, 1925 accepted as Micropyga tuberculata A. Agassiz, 1879 (original description)
Nudechinus rubripunctatus H.L. Clark, 1925 (original description)
Pericosmus abatoides H.L. Clark, 1925 accepted as Parapneustes abatoides (H.L. Clark, 1925) accepted as Schizocosmus abatoides (H.L. Clark, 1925) (original description)
Prionocidaris baculosa lineata H.L. Clark, 1925 accepted as Prionocidaris pistillaris (Lamarck, 1816) (original description)
Prionocidaris baculosa var. lineata H.L. Clark, 1925 accepted as Prionocidaris baculosa lineata H.L. Clark, 1925 accepted as Prionocidaris pistillaris (Lamarck, 1816) (original description)
Prionocidaris badia H.L. Clark, 1925 accepted as Stylocidaris badia (H.L. Clark, 1925) (original description)
Salmacis rubricincta H.L. Clark, 1925 (original description)
Stylocidaris bracteata albidens H.L. Clark, 1925 accepted as Stylocidaris albidens H.L. Clark, 1925 (original description)
Stylocidaris bracteata var. albidens H.L. Clark, 1925 accepted as Stylocidaris bracteata albidens H.L. Clark, 1925 accepted as Stylocidaris albidens H.L. Clark, 1925 (original description)
Temnotrema pallescens H.L. Clark, 1925 (original description)

Antarctic 200NM zone beyond the coastline for Ctenocidaris gigantea (H.L. Clark, 1925) 
Antarctic 200NM zone beyond the coastline for Tripylus abatoides (H.L. Clark, 1925) 
Kermadec Islands for Echinus multidentatus H.L. Clark, 1925 

 Status

 for Arbacia crassispina Mortensen, 1910

Lessios et al. (2012: p. 140) state that: "There seems to be little doubt that A. crassispina and A. dufresni are ... [details]