Visual pigments are the light-absorbing molecules that mediate vision. They consist of an apoprotein, opsin, covalently linked to cis-retinal. The color pigments are found in the cone photoreceptor cells. This fish possesses three genes for green opsin. Two (G103 and G101) that belong to the LWS/MWS group and one (RH11) that belongs to the RH2 group. Belongs to the G-protein coupled receptor 1 family. Opsin subfamily.