Note: Do not rely on this information. It is very old.
Halibut, Holibut (Hippoglossus vulgaris), the sole species of its genus, and the largest of the flat-fishes, specimens of between five and six feet long being fairly common; but it is said that fish of more than three times this length have been taken in high latitudes. The general colour is brownish on the upper surface, with markings of a darker shade and white beneath. The halibut is an important food fish, but its flesh is inferior to that of the turbot (q.v.).