Leuconia johnstonii n.sp. Carter, 1871a: 3, pl. I figs. 5-12; Bowerbank, 1882: 229.
Leucandra johnstonii : Haeckel, 1870: 216, pl. XXXIV fig. 1; Higgin, 1886: 90; Topsent, 1891a: 526; Moore, 1937: 33; Topsent, 1937: 11.
Leuconia johnstoni : Topsent, 1891b: 128; Stephens, 1912: 12; Dendy and Row, 1913: 773; Farran, 1915: 10; Ferrer-Hernandez, 1918: 16; Prenant, 1927: 6; Breitfuss, 1927: 30; Lévi, 1950b: 5; Burton, 1957: 27; Burton, 1963: 266, fig. 130; Bruce et al., 1963: 43; Borojevic et al., 1968: 35; Descatoire, 1969a: 180; Ackers et al., 1992: 57, fig. 166.
Leucandra johnstoni : Burton, 1932: 167; Arndt, 1935: 19, fig. 25
Burton (1963) considers this as one of a number of "Named Forms" grouped under Leuconia barbata , the name he considered valid for the whole complex.