The Order Pleuronectiformes contains these Families:

• 463. Psettodidae [psettodids]
• 464. Citharidae [citharids]
• 465. Bothidae [lefteye flounders]
• 466. Achiropsettidae [southern flounders]
• 467. Scophthalmidae [scophthalmids]
• 468. Paralichthyidae [paralicthyids]
• 469. Pleuronectidae [righteye flounders]
• 470. Samaridae [samarids]
• 471. Achiridae [American soles]
• 472. Soleidae [soles]
• 473. Cynoglossidae [tonguefishes]