Spectacled caiman (Caiman crocodilus)

Containing taxa: Animalia » Chordata » Osteichthyes » Sarcopterygii » Tetrapoda » Diapsida » Archosauria » Crocodylomorpha

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
Double cone principal535nm535nm
Double cone accessory535,506nm519nm
Green cone506nm506nm
Rod500nm501nm
Blue cone443nm447nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (photopic)
Double cone accessory
Double cone principal
  Photopic
Luminance (scotopic)
Rod   Scotopic
Double cone principal - Double cone accessory
567nm - 526nm - 483nm
 
Double cone principal Double cone accessory Photopic
Green-Indigo
519nm - 478nm - 439nm
 
Green cone Blue cone Photopic

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Notes and References:

Nagloo N, Collin SP, Hemmi JM, Hart NS (2016) Spatial resolving power and spectral sensitivity of the saltwater crocodile, Crocodylus porosus, and the freshwater crocodile, Crocodylus johnstoni. Journal of Experimental Biology 219: 1394-1404; doi:10.1242/jeb.135673

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



Note: Many species may have gaps in available data, which may be filled in with extrapolations from closely related species. The AVIAN website is copyright © 2011-2024 J. Gagnon. All rights reserved unless otherwise specified.