Opinions from P. M. Kier 1977
- 'Cidaris aculeata is a nomen dubium'
- 'Cidaris aculeata belongs to Cidaris' according to Zardini 1973
- 'Cidaris aculeata is replaced by Cidaris aialensis'
- 'Cidaris aculeata belongs to Cidaris' according to Leonardi and Lovo 1950
- 'Cidaris aialensis is a nomen dubium'
- 'Cidaris alpina belongs to Cidaris' according to Zardini 1973
- 'Cidaris alpina is a nomen dubium'
- 'Cidaris alternata belongs to Cidaris' according to Stoppani 1857
- 'Cidaris alternata is a nomen dubium'
- 'Cidaris austriaca belongs to Cidaris' according to Desor 1858
- 'Cidaris austriaca is a nomen dubium'
- 'Cidaris avena belongs to Cidaris' according to Desor 1855
- 'Cidaris avena is a nomen dubium'
- 'Cidaris biconica belongs to Cidaris' according to Zardini 1973
- 'Cidaris biconica is a nomen dubium'
- 'Cidaris biformis is a nomen dubium'
- 'Cidaris braunii is a nomen dubium'
- 'Cidaris buchii is a nomen dubium'
- 'Cidaris caudex is a nomen dubium'
- 'Cidaris cingulata is a nomen dubium'
- 'Cidaris coralliophila belongs to Cidaris' according to Zardini 1973
- 'Cidaris coralliophila is a nomen dubium'
- 'Cidaris costalarensis belongs to Cidaris' according to Zardini 1973
- 'Cidaris costalarensis is a nomen dubium'
- 'Cidaris costata belongs to Cidaris' according to Zardini 1973
- 'Cidaris costata is a nomen dubium'
- 'Cidaris costeanensis belongs to Cidaris' according to Zardini 1973
- 'Cidaris costeanensis is a nomen dubium'
- 'Cidaris decorata is a nomen dubium'
- 'Cidaris decoratissima is a nomen dubium'
- 'Cidaris dorsata is a nomen dubium'
- 'Cidaris ecki belongs to Cidaris' according to Assmann 1926
- 'Cidaris ecki is a nomen dubium'
- 'Cidaris forminensis belongs to Cidaris' according to Zardini 1973
- 'Cidaris forminensis is a nomen dubium'
- 'Cidaris fustis is a nomen dubium'
- 'Cidaris gerana is a subjective synonym of Triadocidaris venusta'
- 'Cidaris giauensis belongs to Cidaris' according to Zardini 1973
- 'Cidaris giauensis is recombined as Triadocidaris giauensis'
- 'Cidaris glabra belongs to Cidaris' according to Zardini 1973
- 'Cidaris glabra is a nomen dubium'
- 'Cidaris hausmanni is a nomen dubium'
- 'Cidaris lanceata belongs to Cidaris' according to Stoppani 1857
- 'Cidaris lanceata is a nomen dubium'
- 'Cidaris lancedelli belongs to Cidaris' according to Zardini 1973
- 'Cidaris lancedelli is recombined as Zardinechinus lancedelli'
- 'Cidaris linearis is a nomen dubium'
- 'Cidaris milierensis belongs to Cidaris' according to Zardini 1973
- 'Cidaris milierensis is a nomen dubium'
- 'Cidaris montanaro belongs to Cidaris' according to Zardini 1973
- 'Cidaris montanaro is recombined as Leurocidaris montanaro'
- 'Cidaris ovata belongs to Cidaris' according to Zardini 1973
- 'Cidaris ovata is a nomen dubium'
- 'Cidaris pentagona is recombined as Mikrocidaris pentagona'
- 'Cidaris perplexa belongs to Cidaris' according to Desor 1855
- 'Cidaris perplexa is a nomen dubium'
- 'Cidaris petersii is a nomen dubium'
- 'Cidaris plana belongs to Cidaris' according to Zardini 1973
- 'Cidaris plana is a nomen dubium'
- 'Cidaris pyramidalis belongs to Cidaris' according to Leonardi and Lovo 1950
- 'Cidaris pyramidalis is a nomen dubium'
- 'Cidaris quadrialata belongs to Cidaris' according to Zardini 1973
- 'Cidaris quadrialata is a nomen dubium'
- 'Cidaris quadriserrata belongs to Cidaris' according to Zardini 1973
- 'Cidaris quadriserrata is a nomen dubium'
- 'Cidaris regnyi belongs to Cidaris' according to Lambert 1905
- 'Cidaris regnyi is a nomen dubium'
- 'Cidaris regularis is recombined as Polycidaris regularis'
- 'Cidaris remifera is a nomen dubium'
- 'Cidaris remifera belongs to Cidaris' according to Assmann 1937
- 'Cidaris remifera is a nomen dubium'
- 'Cidaris reticulata belongs to Cidaris' according to Zardini 1973
- 'Cidaris reticulata is a nomen dubium'
- 'Cidaris rinbianchi belongs to Cidaris' according to Zardini 1973
- 'Cidaris rinbianchi is recombined as Paurocidaris rinbianchi'
- 'Cidaris roemeri is a nomen dubium'
- 'Cidaris schwageri is a nomen dubium'
- 'Cidaris scrobiculata is a nomen dubium'
- 'Cidaris seelandica belongs to Cidaris' according to Zardini 1973
- 'Cidaris seelandica is a nomen dubium'
- 'Cidaris semicostata is a nomen dubium'
- 'Cidaris similis belongs to Cidaris' according to Desor 1855
- 'Cidaris similis is a nomen dubium'
- 'Cidaris spinachristi belongs to Cidaris' according to Stoppani 1857
- 'Cidaris spinachristi is a nomen dubium'
- 'Cidaris spongiosa belongs to Cidaris' according to Zardini 1973
- 'Cidaris spongiosa is a nomen dubium'
- 'Cidaris stipes is a nomen dubium'
- 'Cidaris stoppanii belongs to Cidaris' according to de Loriol 1872
- 'Cidaris stoppanii is a nomen dubium'
- 'Cidaris subpentagona is a subjective synonym of Mikrocidaris pentagona'
- 'Cidaris subsimilis is recombined as Triadocidaris subsimilis'
- 'Cidaris suessii is recombined as Triadocidaris suessii'
- 'Cidaris sulcata belongs to Cidaris' according to Zardini 1973
- 'Cidaris sulcata is a nomen dubium'
- 'Cidaris tenuicostata belongs to Cidaris' according to Zardini 1973
- 'Cidaris tenuicostata is a nomen dubium'
- 'Cidaris tetraedrica belongs to Cidaris' according to Zardini 1973
- 'Cidaris tetraedrica is a nomen dubium'
- 'Cidaris toucasi belongs to Cidaris' according to Cotteau 1875
- 'Cidaris toucasi is recombined as Paracidaris toucasi'
- 'Cidaris transversa belongs to Cidaris' according to von Meyer 1847
- 'Cidaris transversa is a nomen dubium'
- 'Cidaris trapezoidalis belongs to Cidaris' according to Zardini 1973
- 'Cidaris trapezoidalis is a nomen dubium'
- 'Cidaris trigona is a nomen dubium'
- 'Cidaris triserrata is a nomen dubium'
- 'Cidaris tyrolensis belongs to Cidaris' according to Desor 1855
- 'Cidaris tyrolensis is an objective synonym of Cidaris roemeri'
- 'Cidaris undulatus belongs to Cidaris' according to Quenstedt 1875
- 'Cidaris undulatus is a nomen dubium'
- 'Cidaris valparolae belongs to Cidaris' according to Zardini 1973
- 'Cidaris valparolae is a nomen dubium'
- 'Cidaris venusta is recombined as Triadocidaris venusta'
- 'Cidaris verticillata belongs to Cidaris' according to Stoppani 1857
- 'Cidaris verticillata is a nomen dubium'
- 'Cidaris verticillata belongs to Cidaris' according to Zardini 1973
- 'Cidaris verticillata is a nomen dubium'
- 'Cidaris waechteri is a nomen dubium'
- 'Cidaris wissmanni is a nomen dubium'
- 'Cidaris zardini belongs to Cidaris' according to Leonardi and Lovo 1950
- 'Cidaris zardini is a nomen dubium'
- 'Diademopsis was reranked as Hemipedina (Diademopsis) and belongs to Hemipedina' according to Bather 1909
- 'Dicyclocidaris belongs to Miocidaridae'
- 'Dicyclocidaris denticulata belongs to Dicyclocidaris'
- 'Hemicidaris gracilis belongs to Hemicidaris' according to Stoppani 1857
- 'Hemicidaris gracilis is a nomen dubium'
- 'Hemicidaris obliquelineata belongs to Hemicidaris' according to Stoppani 1857
- 'Hemicidaris obliquelineata is a nomen dubium'
- 'Hemipedina belongs to Pedinidae'
- 'Hemipedina (Diademopsis) incipiens belongs to Hemipedina (Diademopsis)' according to Bather 1909
- 'Hemipedina (Diademopsis) incipiens is recombined as Hemipedina incipiens'
- 'Hemipedina hudsoni belongs to Hemipedina'
- 'Hypodiadema desori is recombined as Diademopsis desori'
- 'Lenticidaris utahensis belongs to Lenticidaris'
- 'Levicidaris zardinia belongs to Levicidaris'
- 'Lysechinus is a nomen dubium'
- 'Lysechinus incongruens belongs to Lysechinus' according to Gregory 1897
- 'Lysechinus incongruens is a nomen dubium'
- 'Megaporocidaris mariana belongs to Megaporocidaris'
- 'Miocidaris (Serpianotiaris) belongs to Miocidaris' according to Jeannet 1853
- 'Miocidaris (Serpianotiaris) was reranked as Serpianotiaris and belongs to Miocidaridae'
- 'Miocidaris (Serpianotiaris) hescheleri belongs to Miocidaris (Serpianotiaris)' according to Jeannet 1933
- 'Miocidaris (Serpianotiaris) hescheleri is recombined as Serpianotiaris hescheleri'
- 'Miocidaris pakistanensis belongs to Miocidaris'
- 'Paracidaris jeanneti belongs to Paracidaris' according to Lambert 1924
- 'Paracidaris jeanneti belongs to Paracidaris'
- 'Plegiocidaris senex belongs to Plegiocidaris' according to Lambert 1900
- 'Plegiocidaris senex is a nomen dubium'
- 'Pseudodiadema silbinense belongs to Pseudodiadema' according to Stefanini 1923
- 'Pseudodiadema silbinense belongs to Pseudodiadema'
- 'Radiolus adametzi belongs to Radiolus' according to Jekelius 1936
- 'Radiolus adametzi is a nomen dubium'
- 'Radiolus alutensis belongs to Radiolus' according to Jekelius 1936
- 'Radiolus alutensis is a nomen dubium'
- 'Radiolus antipai belongs to Radiolus' according to Jekelius 1936
- 'Radiolus antipai is a nomen dubium'
- 'Radiolus boletus belongs to Radiolus' according to Bather 1929
- 'Radiolus boletus is a nomen dubium'
- 'Radiolus complanatus belongs to Radiolus' according to Quenstedt 1875
- 'Radiolus complanatus is a nomen dubium'
- 'Radiolus culter belongs to Radiolus' according to Bather 1929
- 'Radiolus culter is a nomen dubium'
- 'Radiolus festuca belongs to Radiolus' according to Bather 1929
- 'Radiolus festuca is a nomen dubium'
- 'Radiolus fusus belongs to Radiolus' according to Bather 1929
- 'Radiolus fusus is a nomen dubium'
- 'Radiolus herbichi belongs to Radiolus' according to Jekelius 1936
- 'Radiolus herbichi is a nomen dubium'
- 'Radiolus lineola belongs to Radiolus' according to Bather 1929
- 'Radiolus lineola is a nomen dubium'
- 'Radiolus penna belongs to Radiolus' according to Bather 1909
- 'Radiolus penna is a nomen dubium'
- 'Radiolus racadaui belongs to Radiolus' according to Jekelius 1936
- 'Radiolus racadaui is a nomen dubium'
- 'Radiolus raiblianus belongs to Radiolus' according to Bather 1909
- 'Radiolus raiblianus is a nomen dubium'
- 'Radiolus rostratus belongs to Radiolus' according to Korner 1937
- 'Radiolus rostratus is a nomen dubium'
- 'Radiolus segmentatus belongs to Radiolus' according to Bather 1929
- 'Radiolus segmentatus is a nomen dubium'
- 'Tiarechinus princeps belongs to Tiarechinus' according to Neumayr 1881
- 'Tiarechinus princeps belongs to Tiarechinus'
- 'Triadocidaris immunita belongs to Triadocidaris'
- 'Triadocidaris immunita belongs to Triadocidaris' according to Bather 1909
- 'Triadocidaris persimilis belongs to Triadocidaris' according to Bather 1909
- 'Triadocidaris persimilis belongs to Triadocidaris'