Freshwater crocodile (Crocodylus johnstoni)

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

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
Double cone principal554nm  554nm
Green cone510nm  510nm
Rod510nm  510nm
Blue cone426nm  432nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (photopic)
Double cone principal   Photopic
Luminance (scotopic)
Rod   Scotopic
Double-Single cones
580nm - 536nm - 492nm
 
Double cone principal Green cone Photopic
Green-Indigo
515nm - 470nm - 427nm
 
Green cone Blue cone Photopic

Please wait...

Please wait...

Please wait...

Please wait...

 

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.