Four-eyed fish (Anableps anableps)

Containing taxa: Animalia » Chordata » Osteichthyes » Actinopterygii » Neopterygii » Teleostei » Euteleostei » Neoteleostei » Acanthomorpha » Acanthopterygii » Percomorpha » Carangimorpharia » Ovalentariae » Cyprinodontiformes » Anablepidae

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
LWS cone576nm415nm430nm576nm
Rh2-1 cone516nm415nm430nm516nm
Rh2-2 cone462nm415nm430nm462nm
SWS2b cone415nm  415nm
SWS1 cone361nm  366nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (in water)
LWS cone   in water
Luminance (in air)
Rh2-1 cone   in air
Yellow-Blue (in water)
577nm - 513nm - 460nm
 
LWS cone Rh2-2 cone in water
Green-Indigo (in air)
533nm - 491nm - 449nm
 
Rh2-1 cone Rh2-2 cone in air
Aqua-UVA (in water)
482nm - 439nm - 369nm
 
LWS cone
Rh2-2 cone
SWS1 cone
SWS2b cone
in water
Green-UV (in air)
488nm - 435nm - 370nm
 
Rh2-2 cone
Rh2-1 cone
SWS1 cone
SWS2b cone
in air
Indigo-UV
426nm - 394nm - 362nm
 
SWS2b cone SWS1 cone Photopic

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Notes and References:

Owens G.L., Rennison D.J., Allison T.W., Taylor J.S. (2011) In the four-eyed fish (Anableps anableps), the regions of the retina exposed to aquatic and aerial light do not express the same set of opsin genes. Biol. Lett. (2012) 8: 86-89. doi:10.1098/rsbl.2011.0582

Bowmaker, J. K. (1990). Visual pigments of fishes. In The visual system of fish (pp. 81-107). Springer Netherlands.

Warrant E.J., Nilsson D.-E. (1998) Absorption of White Light in Photoreceptors. Vision Res., Vol. 38, No. 2, pp. 195-207. PII: S0042-6989(97)00151-X

Stavenga D., Smits R.P., Hoenders B.J. (1993) Simple Exponential Functions Describing the Absorbance Bands of Visual Pigment Spectra. Vision Res. 33(8) pp. 1011-1017. doi:10.1016/0042-6989(93)90237-Q



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