Intracellular Absorption Difference Spectrum of Limulus Extra-Ocular Photolabile Pigment

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Science  02 Dec 1966:
Vol. 154, Issue 3753, pp. 1182-1183
DOI: 10.1126/science.154.3753.1182


Microspectrophotometric measurements on single cell bodies located on the surface of the"lateral olfactory nerve" of Limulus polyphemus show they contain a photolabile pigment with a absorption-difference spectrum similar in shape to that of most other visual pigments and with a maximum absorption at 529 ± 5 nanometers.