Description: The body of the petrale sole is elongate, moderately slender and compressed. The head is deep, and the mouth is large. The eyes are large and on the right side. The color is uniform dark to light brown with dusky blotches on the dorsal and anal fins on the eyed side and white on the blind side. Petrale sole are often confused with California halibut because of their similar color and large mouths. However, petrale sole have an even, brown coloration and do not have a high arch in the lateral line.