"Grey knifefish"@en . . "iucn3.1" . "* Platystethus guentheri (J. D. Ogilby, 1889)" . . . "NE" . . "The grey knifefish, Bathystethus cultratus, is a species of sea chub native to the Pacific Ocean from Australia to New Zealand and the Kermadec Islands. This species is a plankton eater which swims constantly within a few meters of the surface of the ocean. This species can reach a length of 30 cm (12 in)."@en . . . "* Cichla cultrata (Bloch & J. G. Schneider, 1801)" . "* Sciaena cultrata (J. R. Forster, 1801) (ambiguous)" . . . .