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  • Hartline, for instance, has shown that the discharge from one of the light-sensitive receptor organs in the eye of Limulus is a fairly close copy of that from a frog's muscle spindle.

    Edgar Adrian - Nobel Lecture

  • The tide was out, and there were dead horseshoe crabs (Limulus polyphemus) everywhere, dozens of them.

    "We are accidents, waiting to happen."

  • Others include Limulus, the horseshoe ‘crab’, and coelacanths, which we shall meet in the next chapter.


  • I also took a laboratory course, which introduced me to neurobiology and to the electrophysiological methods used in the classic studies by Haldan Hartline of the eye of the horseshoe crab Limulus.

    H. Robert Horvitz - Autobiography

  • It was at that time that he took up the study of the inhibitory interaction in the Limulus retina, begun briefly several years before.

    Haldan K. Hartline - Biography

  • At the Johnson Foundation Hartline began his studies on the activity of single optic nerve fibers in the eye of the horseshoe crab, Limulus, recording the responses of receptor units under various conditions of stimulation and adaptation.

    Haldan K. Hartline - Biography

  • Hartline was joined there, in 1954, by Floyd Ratliff and they have continued to the present time collaboration in their joint laboratory on the study of receptor properties and inhibitory interaction in the eye of Limulus, and on related aspects of visual physiology.

    Haldan K. Hartline - Biography

  • There, he began with his colleagues work on intracellular recording from receptor units in the Limulus eye.

    Haldan K. Hartline - Biography

  • Fortunately this difficulty has been overcome by Hartline, who finds that in the eye of Limulus there is no evidence of such interaction and no reason to expect it on grounds of structure.

    Edgar Adrian - Nobel Lecture

  • It is interesting to note that he treats _Limulus_ as an Arachnid, pointing out that there is as much difference between _Apus_ and _Limulus_ as between _Cancer_ and _Phalangium_.

    Form and Function A Contribution to the History of Animal Morphology


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