Tarantula (Aphonopelma chalcodes)

Containing taxa: Animalia » Arthropoda » Chelicerata » Arachnida » Araneae » Mygalomorphae » Theraphosidae

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
Green receptor500nm  500nm
UV receptor370nm  369nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance
 Green receptor   Photopic
Green receptor - UV receptor
500nm - 421nm - 370nm
  		Green receptor UV receptor Photopic

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Notes and References:

Dahl R.D. & Granda A.M. (1989) Spectral sensitivities of photoreceptors in the ocelli of the tarantula, Aphonopelma chalcodes (Araneae, Theraphosidae). J. Arachnol. 17:195-205.

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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