The deepsea sole (Microstomus bathybius) is a species of flatfish in the family Pleuronectidae. It is a bathydemersal species that lives on muddy bottoms at depths of between 41mand1800mm (135feetand5,900feetm), though it is most often found at depths of 500mto950mm (1,600feetto3,120feetm). Its native habitat is the northern Pacific, from Japan to the Gulf of Alaska and down the Pacific coasts of Canada and the USA as far south as Mexico. It grows up to 47cm (19inches) in length.[1]