is a specific kind of: fish family.

has as a member: righteye flounder, righteyed flounder | genus Pleuronectes, Pleuronectes | genus Platichthys, Platichthys | genus Limanda, Limanda | genus Pseudopleuronectes, Pseudopleuronectes | genus Microstomus, Microstomus | genus Hippoglossoides, Hippoglossoides | genus Hippoglossus, Hippoglossus.

is a member of: Heterosomata, order Heterosomata, order Pleuronectiformes.