The northern tonguefish (Symphurus pusillus) is a species of fish belonging to the family Cynoglossidae.
The body of the northern tonguefish has alternating narrow and broad bands spanning the length of it.
It is light brown in color, and has 6 to 7 cross bars on its body of a slightly darker hue.
The northern tonguefish is found on muddy sea beds at moderate depths down to 233m 44 meters.
It is found in the western North Atlantic from Cape Hatteras to the Gulf of Mexico.