Combination of oil droplets with different types of photoreceptor in a freshwater turtle, Geoclemys reevesii.
D000818:Animals; D003118:Color Perception / Q000502:physiology*; D009821:Oils; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology / Q000648:ultrastructure*; D014426:Turtles / Q000033:anatomy & histology*
D009821:Oils