Gaetanus pileatus Farran, 1903
Synonyms:
Gaetanus pileatus Farran, 1903: 16, pl. 17, figs. 1-11; Vervoort, 1963: 132; Tanaka and Omori, 1970a: 141; Park, 1975b: 11, 13, 20, fig. 6; 1978: 139, figs. 23-24; Bradford and Jillett, 1980: 55, fig. 37; Markhaseva, 1996: 211-212, figs. 168-169.
Gaetanus caudani Canu, 1896: 442; Giesbrecht and Schmeil, 1898: 33; Sars, 1905: 4; Sewell, 1947: 56.
Gaetanus clarus Esterly, 1906: 57, pl. 9, fig. 5, pl. 14, fig. 90; Brodsky, 1950: 166, fig. 81.
Gaetanus recticornis Wolfenden, 1911: 288, taf. 26, fig. 13, text-fig. 16 (a-c).
Gaetanus unicornis Esterly, 1906: 57, pl. 9, fig. 3, pl. 12, fig. 54, pl. 13, fig. 76; Brodsky, 1950: 166, fig. 82.
Gaetanus kruppii (non Giesbrecht, 1903): Sewell, 1947: 62, fig. 10 (male only).