Firefly squid (Watasenia scintillans)

Containing taxa: Animalia » Mollusca » Cephalopoda

Photoreceptors:
Receptor Opsin λmax Filter λmax Filter λ50% Recep. λmax
δ cell501nm470nm550nm554nm
γ cell471nm470nm535nm521nm
β cell471nm470nm495nm500nm
P484484nm  484nm
α cell471nm  471nm


Opponent processes:
Description (+) Terminus (-) Terminus Mode
Luminance (upwelling)
 P484   upwelling
Luminance (downwelling)
 α cell   downwelling
δ cell-αβγ cells
558nm - 526nm - 498nm
  		δ cell γ cell
α cell
β cell		 downwelling
γ cell-β cell
529nm - 508nm - 492nm
  		γ cell β cell downwelling
βγ cells-α cell
522nm - 496nm - 470nm
  		γ cell
β cell		 α cell downwelling

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Notes and References:

Seidou M., Sugahara M., Uchiyama H., Hiraki K., Hamanaka T., Michinomae M. (1990) On the three visual pigments in the retina of the firefly squid, Watasenia scintillans. J. Comp. Physiol. A. 166(6):769-773

Michinomae M., Masuda H. (1994) Structural Basis for Wavelength Discrimination in the Banked Retina of the Firefly Squid Watasenia scintillans. J. Exp. Biol. 193: 1-12

Kröger R.H.H., Gislén A. (2004) Compensation for longitudinal chromatic aberration in the eye of the firefly squid, Watasenia scintillans. Vis. Res. 44(18): 2129-2134

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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