Limulus receptor action spectra.
D000818:Animals; D001181:Arthropods / Q000502:physiology*; D004594:Electrophysiology; D066298:In Vitro Techniques; D008027:Light; D009799:Ocular Physiological Phenomena; D011984:Sensory Receptor Cells / Q000502:physiology; D013057:Spectrum Analysis; D014466:Ultraviolet Rays