What is "diamond turbot"

The diamond turbot, Hypsopsetta guttulata, is a flatfish of the family Pleuronectidae. It is a demersal fish that lives in subtropical waters on sand or mud bottoms at depths of up to , though it is most commonly found between . Its native habitat is the coastal areas of the eastern Pacific, from Cape Mendocino, California in the north to Baja California in Mexico in the south. The turbot is dark green with light blue spots. It reaches up to in length, and its maximum reported lifespan is 9 years.