Boa constrictor (Boa constrictor imperator)

Containing taxa: Animalia » Chordata » Osteichthyes » Sarcopterygii » Tetrapoda » Diapsida » Lepidosauromorpha » Squamata » Serpentes » Booidea » Boidae

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
IR receptor10000nm  10000nm
LWS cone549nm  549nm
Rh1 rod495nm  495nm
SWS1 cone357nm  368nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (photopic)
LWS cone   Photopic
Luminance (scotopic)
Rh1 rod   Scotopic
Green-UVA
549nm - 420nm - 367nm
 
LWS cone SWS1 cone Photopic
Infrared
IR receptor   Photopic

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Notes and References:

Sillman A.J., Johnson J.L., Loew E.R. (2001) Retinal photoreceptors and visual pigments in Boa constrictor imperator Journal of Experimental Zoology Part A: Ecological and Integrative Physiology 290(4): 359-365. doi:10.1002/jez.1076

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.