Behaviour
The true soles are bottom-dwelling fishes feeding on small crustaceans and other invertebrates. The family contains 30 genera and a total of about 180 species.
A flatfish resembling a small halibut or sole was observed by the bathyscaphe Trieste at the bottom of the Mariana Trench at a depth around 11 km (36,000 ft). This observation has been questioned by fish experts, and recent authorities do not recognize it as valid.


