The C-O sole (Pleuronichthys coenosus) is a flatfish closely related to halibut that lives on flat sandy bottoms and rocky areas of the eastern Pacific, ranging from Alaska, USA to Baja California, Mexico. As shown in this image, the C-O sole has large, bulbous eyes located near the tip of its snout. Photo taken with a 105 mm macro lens near the Breakwater dive site in Monterey Bay, northern California.