Coachwhip (Coluber flagellum)

Containing taxa: Animalia » Chordata » Osteichthyes » Sarcopterygii » Tetrapoda » Diapsida » Lepidosauromorpha » Squamata » Serpentes » Caenophidia » Colubridae » Colubrinae

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
LWS cone558nm  558nm
Rh1 transmuted cone458nm  458nm
SWS1 cone362nm  371nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (photopic)
LWS cone   Photopic
Lime-Blue
560nm - 504nm - 454nm
 
LWS cone Rh1 transmuted cone Photopic
Green-UVA
558nm - 426nm - 370nm
 
LWS cone SWS1 cone Photopic

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Notes and References:

Simões BF, Sampaio FL, Loew ER, Sanders KL, Fisher RN, Hart NS, Hunt DM, Partridge JD, Gower DJ (2016) Multiple rod–cone and cone–rod photoreceptor transmutations in snakes: evidence from visual opsin gene expression Proc. R. Soc. B 283(1823): 20152624. doi:10.1098/rspb.2015.2624

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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