Hemicidaris stokesii Wright, 1857 † accepted as Gymnocidaris stokesii (Wright, 1857) † (original description)
Polycyphus deslongchampsii Wright, 1854 † accepted as Psephechinus deslongchampsii (Wright, 1854) † (original description)
Pseudodiadema bakerii (Woodward, 1856) † (new combination reference)
Pseudodiadema mamillanum Roemer, 1836 † accepted as Polydiadema mamillanum (Roemer, 1836) † (new combination reference)
Pseudodiadema mooreii Wright, 1854 † accepted as Stereopyga mooreii (Wright, 1854) † (new combination reference)
Pseudodiadema pentagonum McCoy, 1848 † accepted as Diplopodia pentagonum McCoy, 1848 † (new combination reference)
Pseudodiadema radiatum Wright, 1857 † accepted as Trochotiara radiatum (Wright, 1857) † (original description)
Pseudodiadema versipora Woodward, 1856 † accepted as Diplopodia versipora (Woodward, 1856) † (new combination reference)