From Wikipedia, the free encyclopedia
Jump to: navigation, search
Four-eyed fish, Anableps sp.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Anablepidae
Garman, 1895



Anablepidae is a family of freshwater and brackish water fishes living in brackish and freshwater habitats from southern Mexico to southern South America.[1] There are three genera with sixteen species: the four-eyed fishes (genus Anableps), the onesided livebearers (genus Jenynsia) and the white-eye, Oxyzygonectes dovii. Fish of this family eat mostly insects and other invertebrates.


Fish in the subfamily Anablepinae are ovoviviparous. Curiously, they only mate on one side, right-"handed" males with left-"handed" females and vice versa.[2] The male of most species in the family has specialized anal rays which are greatly elongated and fused into a tube called a gonopodium associated with the sperm duct which he uses as an intromittent organ to deliver sperm to the female.


  1. ^ Nelson, Joseph, S. (2006). Fishes of the World. John Wiley & Sons, Inc. ISBN 0-471-25031-7. 
  2. ^ "Four Eyes and More, the Family Anablepidae". Retrieved 2007-03-30. 

Other References[edit]

  • Berra, Tim M. (2001). Freshwater Fish Distribution. San Diego: Academic Press. ISBN 0-12-093156-7

External links[edit]