The barreleye fish is a small fish that lives in the deep to medium-depth parts of the ocean. Because this fish is so small, almost everything eats it, including squid, sharks, and tuna.
A barreleye is a small, deep-sea fish of the family Opisthoproctidae, with barrel-shaped tubular eyes which are generally directed upwards to detect the silhouettes of available prey.
Found in tropical-to-temperate waters of the Atlantic, Pacific, and Indian Oceans. Barreleyes inhabit moderate depths, from the mesopelagic to bathypelagic zone, ca. 400-2,500 meters down.
Scientists at the Monterey Bay Aquarium Research Institute have solved an over 50-year mystery behind the Barreleye fish, finding that the fish can rotate its eyes, but only after discovering that the front of its head is see through. The see through Barreleye Fish (Macropinna microstoma) was first discovered in 1939, but the transparent nature of the fish wasn’t known. The fish had previously been caught in nets, but the see through part is destroyed…