(syn. Charadrius Ϯ St Helena Plover C. sanctaehelenae) St Helena I.; genus Aegialus = Aegialeus Reichenbach, 1853, plover; "Leucopolius should be used for the group called by Seebohm Ægialophili minores and falklandicus (which is placed in his Ægialophili majores). This is divisible into three subgeneric groups— Leucopolius (s. str.) for all save falklandicus, pecuarius, and sanctæhelenæ; PERNETTYVA (subgen. nov.), with C. falklandicus Latham as type, and HELENÆGIALUS (subgen. nov.) with A. sanctæhelenæ (Harting) as type, including pecuarius." (Mathews 1913).