What is "poecilopsettinae"

The Poecilopsettinae are a subfamily of fish in the Pleuronectidae family, comprising three genera and 21 species. Species are typically demersal, living on marine bottoms at depths between in the Indo-Pacific and northwestern Atlantic; the deepest recorded occurrence is in the deepwater dab, Poecilopsetta beanii. Sizes range from in length, though most species are usually under long. Diets consist of zoobenthos.

In some classifications, the Poecilopsettinae subfamily is raised to the level of a family.