From editor or global species database
Synonymy conspecific with Pentaceraster australis according to Doderlein (1936), presumably also Oreaster australis Lutken, 1871 so a synonym of P. regulus (Muller & Troschel, 1842). But omitted from synonymy of P. regulus and bracketted in index, as if a lapsus, by Doderlein (1936) [details]