Třída: Actinopterygii - paprskoploutví
Řád: Pleuronectiformes - platýsi
Čeleď: Cynoglossidae - jazykovcovití

Synonyma: Symphurus plagiusa (non Linnaeus, 1766); Symphurus diomedanus (Goode & Bean, 1885); Symphurus diomedianus (Goode & Bean, 1885); Aphoristia diomedeana Goode & Bean, 1885; Symphurus sumptuosus Chabanaud, 1948; Symphurus parvus (non Ginsburg, 1951); Symphurus pterospilotus Ginsburg, 1951.

Reference: Goode, G. B. & T. H. Bean. 1885. Descriptions of new fishes obtained by the United States Fish Commission mainly from deep water off the Atlantic and Gulf coasts. Proc. U. S. Natl. Mus. v. 8 (no. 543): 589-605.