This Deep-Sea Fish Has the Most Types of Opsins Among Vertebrates

The silver spinyfin has an extraordinary diversity of rod photopigments, which researchers propose may allow it to see color in the deep, dark sea.

Deep-sea fish eyes are not freaky by accident - Queensland Brain Institute - University of Queensland

Evolutionary Diversification of Visual Opsin Genes in Fish and Primates

Unusual A1/A2–visual pigment conversion during light/dark adaptation in marine fish - ScienceDirect

Frontiers Benthic visual adaptation by fine-tuning light sensitivity in Japanese flounder (Paralichthys olivaceus)

The evolution of red color vision is linked to coordinated rhodopsin tuning in lycaenid butterflies

Non-visual Opsins and Novel Photo-Detectors in the Vertebrate Inner Retina Mediate Light Responses Within the Blue Spectrum Region

Molecular Ecology, Molecular Genetics Journal

Deep-sea fishes' eye chemistry may let them see colors in the dark

Deep-Sea Fish Have Evolved Highly Sensitive Vision To See Color In Near-Total Darkness

Pushing the limits of photoreception in twilight conditions: The rod-like cone retina of the deep-sea pearlsides

Some deep-sea fish have evolved souped-up colour night vision

Deep-sea fish - Wikipedia

Integrative approach to study opsin gene evolution exemplified in the

Deep Sea Fish Encyclopedia MDPI

A vertebrate lineage cladogram showing how the repertoire of opsins