Anableps anableps

Anableps anableps, the largescale four-eyed fish is a species of four-eyed fish found in fresh and brackish waters of northern South America and Trinidad. This species grows to a length of 32 centimetres (13 in) TL. This fish can be found in the aquarium trade. The fish does not actually have four eyes, but instead each eye is split into two lobes by a horizontal band of tissue, with each lobe having its own pupil and separate vision. This allows the fish to see under and above the surface of the water at the same time.[1]

Largescale four-eyed fish at Hellabrunn Zoo

Anableps anableps
at Caroni Swamp, Trinidad
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Anablepidae
Genus:	Anableps
Species:	A. anableps
Binomial name
Anableps anableps (Linnaeus, 1758)
Synonyms[1]
Cobitis anableps Linnaeus, 1758 Anableps anableps Meuschen, 1778 Anableps tetrophthalmus Bloch, 1794 Anableps surinamensis Lacepède, 1803 Anableps gronovii Valenciennes, 1846 Anableps lineatus Gronow, 1854