start stage end stage eye photoreceptor cell retinal cone cell CL:0000573 retinal cone cells ZFA:0009262 zebrafish_anatomy One of the two photoreceptor cell types in the vertebrate retina. In cones the photopigment is in invaginations of the cell membrane of the outer segment. Cones are less sensitive to light than rods, but they provide vision with higher spatial and temporal acuity, and the combination of signals from cones with different pigments allows color vision. TAO:0009262 unknown adult