CAUTION: This entry is based on one individual who might have been in the process of metamorphosing from a juvenile vision system to an adult vision system. This animal is likely to not be a trichromat.
Bowmaker, J. K. (1990).
Visual pigments of fishes.
In The visual system of fish (pp. 81-107). Springer Netherlands.
Douglas, R. H., Partridge, J. C., & Marshall, N. J. (1998).
The eyes of deep-sea fish I: lens pigmentation, tapeta and visual pigments.
Progress in retinal and eye research, 17(4), 597-636.
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