The family Pleuronectidae is often referred to as the flatfish or flounder family. These marine fish species are known for their asymmetrical bodies, with both eyes appearing on one side of the head. Other synonyms for the family Pleuronectidae include the righteye flounder family and the sea flounders family. Within this family, there are multiple genera such as Paralichthys, Platichthys, and Pleuronectes. These fish are commonly found in temperate and arctic waters and are important for both commercial and recreational fishing industries. Due to their unique body shape and behavior, flatfish are also studied in fields such as developmental biology and ecology.