title: Spectral sensitivity of the endoparietal eye in Limulus polyphemus.
mesh_terms: D000818:Animals; D003118:Color Perception / Q000502:physiology*; D004596:Electroretinography; D006737:Horseshoe Crabs / Q000502:physiology*; D009799:Ocular Physiological Phenomena; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology