geminus, Prognathodes Copus [J. M.], Pyle [R. L.], Greene [B. D.] & Randall [J. E.] 2019:127, Figs. 1-3 [ZooKeys No. 835; ref. 36622] Ngemelis Island, northwest side, "Blue Holes", Palau, Caroline Islands, 7.13791N, 134.22181E, depth 116 meters. Holotype: BPBM 40857. Paratype: USNM 440390. •Valid as Prognathodes geminus Copus, Pyle, Greene & Randall 2019. Current status: Valid as Prognathodes geminus Copus, Pyle, Greene & Randall 2019. Chaetodontidae: Chaetodontinae. Distribution: Palau, Caroline Islands (and possibly in the Coral Sea and New Caledonia). Habitat: marine.